Program Schedule

View session wise speaker sessions below. Click on the respective day to view sessions on that particular day.

Note: The shedule of speakers and their order of talks are subject to changes.

Keynote Speaker

1
Terry J. Hendricks

NASA - Jet Propulsion Laboratory / California Institute of Technology Pasadena, CA 91109

Title of Talk: On Transitioning Spacecraft Power System Technology to Terrestrial Power Systems for 2020 and Beyond

Terry J. Hendricks

NASA - Jet Propulsion Laboratory / California Institute of Technology Pasadena, CA 91109

Title of Talk:
On Transitioning Spacecraft Power System Technology to Terrestrial Power Systems for 2020 and Beyond

Abstract:
Spacecraft power technologies surround our daily lives. Piezoelectrics in our shoes; thermoelectrics (TE) in the ground, industry, automobiles, and spacecraft; concentrated solar photovoltaics and solar thermal systems to power our homes and industries are prevalent as never before. Thermoelectric technologies have key benefits and strengths in many terrestrial and military waste energy recovery applications, such as potential modularity, high reliability, and solid state performance requiring little or no operational maintenance. This presentation and discussion will examine current and potential future use of thermoelectric technology and systems based on nano-scale material advancements for proposed NASA deep-space missions to Europa, Titan, and Enceladus and beyond; proposed NASA planetary missions to Mars, Saturn, Venus, and Jupiter; and transitioning to Earth-based applications in automotive, industrial, and aircraft. Different mission concepts have widely varying thermal environments; with temperatures ranging from >873 K in radioisotope-driven systems (with temperatures similar to industrial processing systems) to <100 K in deep-space environments. This discussion will explore the impacts of these different environments on design requirements and performance of potential radioisotope thermoelectric generator (RTG) power technologies. New TE materials are being developed at smaller length-scales and with new nano-composite materials (including Ni/La3Te4, Ca9Zn4.6Sb9, and NiSb2Sn) to support next-generation energy harvesting and next-generation RTG power system opportunities. The latest advanced and demonstrated TE materials (skutterudites, La3-xTe4, Zintls) will be discussed to show new trends, requirements, and remaining challenges. Recent work at Jet Propulsion Laboratory (JPL) is developing high-efficiency, high-power-flux thermoelectric (TE) modules using skutterudite materials in high-specific-power thermoelectric generators (TEG) critical for terrestrial waste heat recovery (WHR) applications. New skutterudite-based TE modules with small cross-sectional footprints (i.e., area) and high packing factor have demonstrated high power levels and module-level power fluxes greater than 2 W/cm2. The modules have demonstrated their high power output (>10 W) at working temperature differentials of approximately Th = 440°C to Tc = 0°C. These new modules use the newest skutterudite TE materials that have demonstrated long-term exposure capability at high temperatures for thousands of hours with very little TE property degradation. This demonstrates how NASA-driven technology development is flowing down to a wide-spectrum of Earth-based power system applications, such as thermoelectric-driven energy recovery systems.

Biography:
Dr. Hendricks is currently a Technical Group Supervisor, Project Manager, and ASME Fellow in the Power and Sensor Systems Section at NASA–Jet Propulsion Laboratory (JPL)/California Institute of Technology, Pasadena, CA, responsible for managing power system projects; and designing spacecraft power systems, solar power systems, nanotechnology in thermal management and thermal energy storage systems critical to NASA missions. Dr. Hendricks received his Ph.D. and Master of Science in Engineering from the University of Texas at Austin and Bachelor of Science in Physics from the University of Massachusetts at Lowell. He has over 35 years of professional experience in thermal & fluid systems, nanotechnology in energy recovery, conversion and storage systems, terrestrial and spacecraft power systems, and project management. Dr. Hendricks has authored or co-authored more than 85 publications, 2 invited book chapters, holds 9 patents, and is a registered Professional Engineer in California and Texas.

Keynote Speaker

2
Alexander Bagaturyants

Photochemistry Center RAS Federal State Institution "Federal research center Crystallography and Photonics Russian Academy of Science" (FRC Crystallography and Photonics RAS), Russia

Title of Talk: Theoretical Modeling in Organic Nanophotonics

Alexander Bagaturyants

Photochemistry Center RAS Federal State Institution "Federal research center Crystallography and Photonics Russian Academy of Science" (FRC Crystallography and Photonics RAS), Russia

Title of Talk:
Theoretical Modeling in Organic Nanophotonics

Abstract:
Functional organic materials are widely used in photonics applications such as light-emitting devices (OLEDs), photovoltaic devices (solar cells), and optical chemical sensors. The development of new promising materials with good charge-transport characteristics, good energy-transfer properties, good emission properties, and high thermal and photo stability is a very important problem. Theoretical prediction of these properties and characteristics makes it possible to select materials with the best properties. In our work multiscale atomistic simulation methods are applied to studying excited molecules in organic materials and their interaction with neighboring molecules. Such interactions can lead to the formation of excimers and/or exciplexes. The formation of exciplexes at the interface between layers of organic molecules in multilayer structures, typical for organic light-emitting diodes and for other devices of organic electronics and photonics, makes an important contribution to their emission spectrum. Studying such interactions and resulting complexes is of great interest for photonics of organic materials. The application of theoretical methods of atomistic simulation to the prediction of properties of molecules in excited states is especially justified, because a direct experimental investigation of properties of molecules in excited states poses great difficulties. Our work is concentrated on the development of adequate models of a complex system containing excited components, the selection of most reliable methods and approaches for the calculation of such molecular systems taking into account the near and long-range environment, and the development of suitable methods for the description of charge and/or excitation transfer. These following steps are briefly discussed: (1) the construction and use of the library of parameters of the EFP (Effective Fragment Potentials) approximation for the simulation of environment of luminescent dopants and transport molecules in the layers; (2) the estimation of the accuracy of the obtained results; (3) the creation of a program complex for the construction of the polarized environment using the library of parameters in the EFP approximation; (4) the investigation of the effect of the polarized environment on the positions of triplet and singlet levels of luminescent dopants; (5) the development and improvement of approaches to the calculation and interpretation of absorption spectra of supramolecular systems using hybrid QM/MM methods; (6) studying the formation of exciplexes forming at the interface between two organic semiconducting layers by molecular dynamics and the calculation of their properties by quantum chemical methods; (7) selection and development of force fields for metal-organic complexes, molecular dynamics simulation of such system using these force fields; (8) the development and improvement of the computational approach based on multiconfigurational quantum-chemical calculations of radiative and intersystem crossing constants; (9) studying spin-mixed states of phosphorescent iridium(III) complexes, the calculation of radiative phosphorescence constants, and analysis of channels of nonradiative phosphorescence quenching.

Biography:
Alexander Bagaturyants is chief researcher at Photochemistry Center of the Russian Academy of Sciences. He was graduated from D.I. Mendeleev Institute of Chemical Technology, Moscow, Russia in 1962, obtained his PhD degree, Dr. Sci. degree, and the academic title of professor in 1968, 1987, and 1992, respectively, all in physical chemistry. His main research interests are in the field of atomistic multiscale simulations of organic functional materials, quantum chemistry, quantum-chemical calculations of excited states in molecules and molecular complexes. Alexander Bagaturyants is the author of more than 200 research papers and two monographs.

Keynote Speaker

3
Jose A. De Toro SANCHEZ

Instituto Regional de Investigación Científica Aplicada (IRICA) and Departamento de Física Aplicada Universidad de Castilla-La Mancha, Spain

Title of Talk: Dense assemblies of magnetic nanoparticles: characterization and applications

Jose A. De Toro SANCHEZ

Instituto Regional de Investigación Científica Aplicada (IRICA) and Departamento de Física Aplicada Universidad de Castilla-La Mancha, Spain

Title of Talk:
Dense assemblies of magnetic nanoparticles: characterization and applications

Abstract:
Magnetic nanoparticles attract great interest due to their ever-increasing range of applications, including data storage, permanent magnets, catalysis, microwave absorption and optics, and more recently, a variety of uses in biomedicine, both for diagnosis (MRI contrast, magnetic particle imaging) and therapy (magnetic hyperthermia and drug delivery), i.e. in theranostics [1]. In order to reach high efficiencies, most of the above applications necessarily rely on relative dense ensembles of magnetic nanoparticles, where (at least) dipolar interactions, and the corresponding demagnetizing field, become inevitably important. However, the effects of such interparticle (or intergrain) interactions are not yet fully understood, as they sometimes lead to complex collective behavior driven by magnetic frustration. In fact, there is a lack of robust analysis methods to even quantify the strength of interparticle interactions. A review of such methods is presented, highlighting our recent findings on arguably the most popular of them, namely the Henkel plots, which have been consistently shown by experiment and Monte Carlo simulations to be sensitive not only to interparticle interactions, as customarily assumed, but also to the subtle surface disorder frequently exhibited by oxide nanoparticles (ubiquitous in the mentioned applications).

Biography:
Jose A. De Toro obtained his Physics M.S. at U. Autónoma de Madrid (1997) and his Ph.D. (2002) at Universidad de Castilla-La Mancha, where he is currently an associate professor. He was a postdoc Marie Curie fellow at the University of Liverpool (2004) and visiting professor at the University of Cagliari (2016). His main research line focuses on magnetic nanoparticles, with studies on topics such as the collective behavior of dense assemblies or exchange-bias effects in core-shell structured bi-magnetic particles. He has been invited to speak in APS and ICFPM conferences, among others. He is the chairman of a symposium on the substitution of critical raw materials in the coming E-MRS Spring Meeting (2018).

Sessions:

Nanomaterials
Andreas Schnepf
Andreas Schnepf

Institute of Inorganic Chemistry, University Tübingen, Germany

Title of Talk: Metalloid Clusters of main Group and Precious Metals

Andreas Schnepf

Institute of Inorganic Chemistry, University Tübingen, Germany

Title of Talk:
Metalloid Clusters of main Group and Precious Metals

Abstract:
An important prerequisite for an understanding of size dependent properties of clusters or nanoparticles; e.g. the transition molecule → semi-metal → metal, is the knowledge of the structure. This finding seems trivial however, for metals or semi-metals only few compounds are structurally known in the area between the molecular and solid state. Metalloid clusters of the general formulae MnRm with n > m (M = metal;R = ligand) are ideal model compounds for this nanoscaled area, opening our eyes to the complexity and the fundamental principles of the dissolution and the formation of metals.[1] Thereby in the nanoscaled regime novel physical and chemical properties emerge. The most fruitful synthetic approach to metalloid germanium clusters applies the disproprotionation reaction of Ge(I) halides [2], leading to metalloid clusters like Ge12[FeCp(CO)2]8[FeCpCO]2 1 or [Li(THF)2)]Ge14[Si(SiMe3)3]5 2 [3]. Despite this metalloid gold clusters are obtained via the reduction of a gold precursor like HAuCl4 with e.g. NaBH4 in the presence of a thiol ligand leading to metalloid clusters like Au102(p-MBA)44 3 (p-MBA = p-mercaptobenzoic acid)[4]. Here we discuss the synthesis, structural features and bonding properties of recent results in germanium and gold chemistry and their relation to the corresponding element and other metalloid clusters.

Biography:
1990 – 1996: Study of chemistry; University of Karlsruhe (TH).  12/1996: Diploma thesis in organic chemistry with Prof. Dr. H.-J. Knölker  05/2000: Doctoral thesis in inorganic chemistry with Prof. Dr. H. Schnöckel  2000 – 2002: Postdoc at the institute of inorganic chemistry, University of Karlsruhe (Research stays at the research facilities in Hamburg (DESY Deutsches Elektronen Synchrotron) and Villingen (PSI: Paul Scherrer Institute)  2002 – 2006: Habilitation at the Institute of inorganic chemistry at the University of Karlsruhe.  2006 – 2010: Privatdozent at the University of Karlsruhe  2010 – 2012: W2-Professor (Inorganic Chemistry) University Duisburg-Essen.  2013 – now: W3-Professor (Functional Nanostructured Materials) University Tübingen.

Eduard  Zenkevich
Eduard Zenkevich

University of Belarus, Belarus

Title of Talk: Interface phenomena and exciton relaxation in self-assembled nanocomposites “CdSe/ZnS quantum dot – functionalized dye molecule”

Eduard Zenkevich

University of Belarus, Belarus

Title of Talk:
Interface phenomena and exciton relaxation in self-assembled nanocomposites “CdSe/ZnS quantum dot – functionalized dye molecule”

Abstract:
Organic-inorganic nanostructures based on colloidal semiconducting quantum dots (QDs) in combination with organic dye molecules are of special interest with respect to nanodevices, sensor technology and photovoltaics. We have shown that the attachment of one or few dye molecules (tetrapyridyl substituted porphyrins or perylene bisimides) via suitable anchor groups to the surface of QDs (CdSe or CdSe/ZnS of various sizes) is followed by QD photopluminescence (PL) quenching and PL decay times shortening. In this report, we present a detailed comparison of static and dynamic PL quenching via spectral intensities and PL decays. We were able to separate FRET (leading to 10-14 % of the total quenching effeiciency) and non-FRET processes quantitatively comparing QD donor PL quenching and porphyrin acceptor fluorescence enhancement. The FRET related part is in agreement with the Foerster-type model while non-FRET is related to the replacement of several ligands by the spacious and chemically differently bonding dye molecules. Based on bulk and single nanoobjects detection results, we have shown that non-FRET QD PL quenching results in an increase of the relative contribution of intrinsic weakly radiative QD states. In terms of single QD spectroscopy, the dye attachment increases the probabilities of dark and dim states. The modification and/or creation of dye induced surface traps is due to formation of additional and/or new Cd2+ dangling bonds at the QD surface because of dye-induced ligand depletion. The obtained results demonstrate that on the basis of the combination of steady-state and time-resolved measurements for bulk and single QD-dye nanoassemblies, it is in principle feasible to follow non-radiative pathways from near-band energy states to intra-gap states thus investigating microscopic features of surface related energy distributions and decay channels.

Biography:
Eduard Zenkevich (born in 1945): graduated from Belarussian State University (1967, Minsk, Belarus), PhD Degree (1973), Doctor Habil. (1990). Full Professor of Physics (1998, Institute of Molecular and Atomic Physics, NAS of Belarus), Full Professor of Physics (2007, Belarussian National Technical University). Main research activities: structure/relaxation dynamics relationships in nanoscale self-assembled objects: multiporphyrin structures, pigment-protein complexes, “semiconductor quantum dot – dye molecule” nanocomposites. Visiting professor and lecturer at the Institute of Physics, University of Technology Chemnitz (1993-2016, Germany); accredited expert of Russian Corporation of Nanotechnologies “ROSNANO” (2010). The total list of publications includes more than 200 publications in refereed periodicals, two books.

Vladimir Fomin
Vladimir Fomin

Institute for Integrative Nanosciences, Germany

Title of Talk: Theory of Phonons in Multishell Microtubes

Vladimir Fomin

Institute for Integrative Nanosciences, Germany

Title of Talk:
Theory of Phonons in Multishell Microtubes

Abstract:
Exploration and engineering of lattice dynamics and phonon transport at the nanoscale –nanophononics – have become a rapidly advancing domain of nanophysics and nanotechnologies. Efficient nanoscale control of acoustic phonons is of immanent importance for design and fabrication of novel nanoelectronic systems, nano- and optomechanical devices, thermoelectric materials for energy harvesting and solid-state refrigeration, micro- and nanoscale resonators, phonon-based quantum memories and biomedical applications, for development of phononic computing and information processing. In new classes of hybrid nanoarchitectures, core–multishell semiconductor nanowires and self-assembled rolled-up nanostructured microtubes, the strain is partially released along the radial direction, thus allowing the creation of heterostructures, based on lattice-mismatched materials. Our theoretical analysis of phonon spectra in multishell nanostructured microtubes [1] has revealed the fact that the number of shells NL (i.e., the key geometric characteristic) is an important control parameter of the phonon dispersion along with the structure dimensions and acoustic impedance mismatch between the constituent layers. The decrease of the phonon frequencies in the long-wave limit is inversely proportional to NL. Away from the long-wave limit, a general trend of “compression” of the phonon energy spectrum towards lower values of phonon frequencies persists. At small wave vectors, the phonon group velocities decrease with increasing NL. Analysis performed on a large interval of wave vectors and in a wide spectrum of frequencies implies a prominent effect of the number of layers on the phonon dispersion, phonon group velocity and the density of states of phonons as well as on the phonon transport. An effective approach to manage the thermal conductivity of Si thin-film-based nanoarchitectures has been realized through the formation of radial and planar Si/SiOx hybrid nanomembrane superlattices (HNMSLs) [2]. For the radial Si/SiOx HNMSLs with various numbers of windings, there occurs a continuous reduction in the thermal conductivity with increasing number of windings. A theoretical model developed within the framework of the Born−von Karman Lattice Dynamics alloved for a quantitative interpretation of the experimental data [2]. It indicates that the thermal conductivity of Si/SiOx HNMSLs is largely determined by the phonon processes in the SiOx layers. Rolled-up systems, consisting of hybrid materials, such as inorganic/organic, semiconductor/metal or crystalline/amorphous heterostructures, show fascinating potential in tailoring the phonon properties because of varying contributions of individual components.

Biography:
Vladimir M. Fomin, research professor at the Institute for Integrative Nanosciences (IIN), Leibniz Institute for Solid State and Materials Research (IFW) Dresden. Member of APS, German Physical Society, European Physical Society, IEEE, Nanoscale Superconductivity COST Action (European Cooperation in Science and Technology), Mediterranean Institute of Fundamental Physics. Doctoral studies in Kishinev at the Department of Theoretical Physics of the State University of Moldova. Ph.D. in theoretical physics in 1978. Work in the Lab. “Physics of Multi-Layer Structures” at the State University of Moldova (from scientific researcher to director). Research interests: non-linear optical properties and transport due to the charge-vibrational interaction in semiconductors and in multi-layer structures, including derivation of the phonon spectra and the electron–phonon interaction; classification of polaritons and phonons; polaronic, bipolaronic and excitonic effects in arbitrary multi-layer structures. State Prize of Moldova 1987. Dr. habilitat in physical and mathematical sciences (Academy of Sciences of Moldova, 1990). University Professor in Theoretical Physics (State University of Moldova, since 1995). Research Fellow of the Alexander von Humboldt Foundation (Martin-Luther-University of Halle, 1993–1994). Research at the Lab. Theoretical Solid State Physics (University of Antwerp, 1995–2008) and the Group Photonics and Semiconductor Nanophysics (Eindhoven University of Technology, 1998–1999, 2003–2007), Division Quantum and Physical Chemistry (Catholic University of Leuven, 2008), Faculty of Physics (University of Duisburg-Essen, Duisburg, 2008–2009), IIN IFW-Dresden (since 2009). Diploma of a Scientific Discovery of the Phenomenon of the Propagation of Spatially-Extended Interface Phonon Polaritons in Composite Superlattices (Academy of Natural Sciences of Russia, 1999). Medal “Academician P. L. Kapitsa” (Academy of Natural Sciences of Russia, 2000). Honorary Member of the Academy of Sciences of Moldova (2007). Scientific interests in nanophysics: theory of strain-induced nano-architectures, in particular, physical properties of self-assembled nano- and microstructures (quantum rings, superlattices of quantum dots, rolled-up semiconductor and superconductor membranes), optical properties of quantum dots, persistent currents and magnetization of quantum rings; phase boundaries and vortex matter in meso-, nanoscopic and patterned superconductors; superconducting properties of metallic nanograins; surface-induced magnetic anisotropy in mesoscopic systems of dilute magnetic alloys; quantum transport in sub-0.1 micron semiconductor devices; vibrational excitations and polaronic effects in nanostructures; thermoelectric properties of semiconductor nanostructures. 3 monographs, including “Physics of Quantum Rings”, Springer, 2014 (Editor), 3 textbooks, 9 review papers, 10 patents and about 200 scientific articles.

N. Kamoun Turki
N. Kamoun Turki

Université de Tunis El Manar, Faculté des Sciences de Tunis, Tunisia

Title of Talk: Investigations on the growth of quaternary nanomaterials Cu2In(1-X)GaxS2 and Cu2ZnSnS4 for solar cell devices.

N. Kamoun Turki

Université de Tunis El Manar, Faculté des Sciences de Tunis, Tunisia

Title of Talk:
Investigations on the growth of quaternary nanomaterials Cu2In(1-X)GaxS2 and Cu2ZnSnS4 for solar cell devices.

Abstract:
CuIn1_xGaxS2 (CIGS) and Cu2ZnSnS4 (CZTS) multi-component semiconductor thin films were prepared on glass substrates by chemical spray pyrolysis. CIGS thin layers are grown using different concentrations of gallium in the spray solutions (y = ([Ga3+]/[In3+]) varying from 0 to 20 at% by a step of 5 at%). We reported two new structures for CuInS2/β-In2_xAlxS2/ZnO:Al and CuIn1_xGaxS2 (y = 10 at%)/β-In2-xAlxS2/ZnO:Al solar cells to investigate the effect of gallium incorporation on the photovoltaic parameters. We found that the Ga-containing cell shows conversion efficiency higher than the Ga-free reference cell due to higher open-circuit voltage (Voc = 540 mV) and short-circuit current density (Jsc = 10 mA cm_2). Then CIGS may be replaced by Cu2ZnSnS4 (CZTS) which has received considerable attention as one of the promising absorbers for the fabrication of solar cells with conversion efficiency close to 12.6% . Sprayed Cu2ZnSnS4 (CZTS) thin films have been prepared using both aqueous and alcoholic solution. For the aqueous solution, CZTS thin films, elaborated at a substrate temperature of 280 °C and followed by a thermal treatment under nitrogen atmosphere at 500 °C, present the best physical properties. For the CZTS sprayed using the methanol as solvent, The thin film prepared at 0.04 M as thiourea concentration exhibits much better crystallinity, less secondary phases and has the closest band gap to the theoretical value. Followed by an annealing process under nitrogen atmosphere for an hour at 550 °C, the structural, optical and electrical properties of that film shows a drastic improvements

Biography:
She is a full Professor at the Faculty of Sciences of Tunis (FST) University of Tunis El Manar Tunisia. She obtained her PhD thesis in 1992 from FST and the Habilitation (HDR) in Physics in Tunisia (FST) in 2000 and she is a Professor since 2007. Her academic research focuses on Transparent conductive oxides (TCO : ZnO, SnO2, In2O3, TiO2, MoO3, Fe2O3 and Fe3O4), binary semiconductors (In2S3, SnS, CdS, Cu2S, ZnS, PbS and MgS), ternary (CuInS2, In(2-x)GaxS2, P3HT and P3OT) and quaternary compounds (CuIn(1-x)GaxS2 :CIGS and Cu2ZnSnS4 :CZTS) for opto-electronic applications such as photocatalysis, gaz sensors, solar cells, UV and IR detectors. Nanomaterials and thin films are grown by different low cost techniques (spray pyrolysis, chemical bath deposition (CBD), spin coating, electrodeposition and sputtering). She pulished about 100 papers in International Journals with impact factor and supervised more than 20 PhD thesis. Since 1989 she is a researcher in Physics Condensed Matter Laboratory (LPMC) where she was a head (2011-2015). In the period 2013-2014 she occupied the post of General Director of Physico-Chemical Analysis Institute (INRAP) in the Technopole of Sidi Thabet. She was a vice President of AUF COMARES (for MAGHREB : 2013-2015) and she is, since 2013, a representative of the Ministry of Higher Education and Scientific Research on the board of directors of the National Metrology Agency (ANM). Since 2001 she is a Director of Synthesis of nanomaterials and thin film semiconductors for optoelectronic applications, Physics Condensed Matter Laboratory. In 2016 she is elected a TWAS (The World Academy of Science) member. Since 2015 she is elected as ARA (American Romanian Academy) member.

Roberto Grau
Roberto Grau

Universidad Nacional de Rosario (UNR) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Argentina.

Title of Talk: Metal nanoparticles as a novel and safe strategy to fight pathogenic spores and antibiotic-resistant microbial biofilms.

Roberto Grau

Universidad Nacional de Rosario (UNR) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Argentina.

Title of Talk:
Metal nanoparticles as a novel and safe strategy to fight pathogenic spores and antibiotic-resistant microbial biofilms.

Abstract:
Biofilms are three-dimensional structures that contains billions of genetically identical bacteria submerged in a self-produced extracellular matrix, which protect bacteria from antibiotics and the human immunological defenses. More than 85 % of chronic and/or recurrent human infections are linked to bacterial biofilms. In addition, spore-forming pathogenic bacteria represent an additional community threat because of their intrinsic refractory behavior against antibiotics, phagocytes and their easy utilization in bioterrorist attacks. Therefore, every day the available microbicide arsenal against biofilms and spores becomes scarcer. Accordingly, nano-material biotechnology emerges as a promising alternative for reducing the detrimental effects of microbial-related diseases. Here we describe the development of novel nanostructured coating systems with improved photocatalytic and antibacterial activities. These systems comprise, in one case, layers of SiO2 followed by layers of mesoporous or dense TiO2-anatase, and doping with silver nanoparticles (Ag NPs). In the other case, we developed Copper NPs and its oxides by a chemical method based on a bottom up approach and its stabilization using aminosilanes as surface modifiers. The activity of CuNPs and AgNPs (MNPs) was measured against spores and vegetative (planktonic and sessile) forms of the relevant human pathogens Enterohemorrhagic Escherichia coli (etiological agent of Hemolytic Uremic Syndrome), Listeria monocytogenes (etiological agent of septic abortion), Bacillus anthracis (etiological agent of Anthrax), Clostridium perfringens (etiological agent of food-associated diarrhea and Gas Gangrene), cystic-fibrosis related Pseudomona aeruginosa and methicillin-resistant Staphylococcus aureus ( etiological agent of sepsis and myocardiopathies). The planktonic and sessile growth (measured as the final cellular yield at 600 nm and crystal violet staining, respectively) of each pathogen, as well as the sporocide effect on C. perfringens and B. anthracis spores, was very significant at submillimolar concentrations of MNPs (95 % of vegetative growth inhibition and sporocide effect, p < 0.01). The anti-biofilm effect against the bacterial pathogens was exerted at genetic level as revealed by the downregulated expression produced by the MNPs on transcriptional β-galactosidase and gfp-fluorescence reporter fusions to genes involved in extracellular matrix synthesis. MNP-treatment of pre-formed biofilms dramatically accelerated their dissembling and cellular death without dispersal cell formation. Interestingly, the emergency of MNP-resistant bacterial cells after ten-days of treatment with sub-MIC concentrations of the microbicide was significantly lower (p < 0.01) than the emerged resistance after bacterial treatment with commonly-used available antibiotics. The importance of the MNP treatment adoption as a safe alternative for reducing and preventing pathogen bioburden is discussed.

Biography:
Roberto Grau completed his PhD from Rosario National University in Argentina and obtained his postdoctoral studies from The Scripps Research Institute (TSRI), Department of Experimental Medicine at San Diego, California, USA. He is a Pew Latin American Fellow (San Francisco, USA), a Fulbright International Scholar (WashigntonDC, USA) and the director of the Molecular Microbiology and Environmental Science Laboratory of the National Council of Scientific Research of Argentina (CONICET). Roberto obtained many national and international awards, published more than 30 papers in reputed journals, formed more than seventy profesionals in science and founded and/or catalyzed the creation of half-dozen biotechnological companies.

Cecile Reynaud
Cecile Reynaud

Université Paris-Saclay, CEA Saclay, France

Title of Talk: Growth of vertically aligned carbon nanotubes on aluminum foils

Cecile Reynaud

Université Paris-Saclay, CEA Saclay, France

Title of Talk:
Growth of vertically aligned carbon nanotubes on aluminum foils

Abstract:
Forests of vertically aligned carbon nanotubes (VACNTs) are attractive nanomaterials because of their unique structural, electrical and thermal properties. However, many applications require their growth on metallic substrates. Catalytic chemical vapor deposition (CCVD) is the best method to grow them but the catalytic particles can diffuse rapidly into the metal subsurface and thus become inactive. In this communication, I will address this issue through the recent results obtained in our laboratory. I will show how it is possible to grow VACNT on carbon fibers [1], stainless steel and aluminum surfaces by a single-step process, namely the aerosol assisted CCVD, where the catalyst and carbon precursors are injected simultaneously [2]. In the case of aluminum, due to its low melting temperature, the synthesis of VACNT requires a significant reduction in the growth temperature as compared to conventional substrates [3]. Our results show that, with our single-step process, it is possible to obtain clean, long and dense VACNTs, with a growth rate at the best state of the art level for such a low temperature. A particular attention has been paid to the study of the CNT/Al interface. The results suggest the crucial role of the interface for an efficient and reproducible VACNT growth. Finally, I will show that the aerosol-assisted CCVD process can be scaled-up [4] to enable the fabrication of innovative ultracapacitors [5] based on VACNTs grown on aluminum foils. [1] M. Delmas, M. Pinault, S. Patel, D. Porterat, C. Reynaud, M. Mayne-L’Hermite, Growth of long and aligned multi-walled carbon nanotubes on carbon and metal substrates., Nanotechnology. 23 (2012) 105604. [2] P. Landois, M. Pinault, S. Rouzière, D. Porterat, C. Mocuta, E. Elkaim, M. Mayne-L’Hermite, P. Launois, In situ time resolved wide angle X-Ray diffraction study of nanotube carpet growth: nature of catalyst particles and progressive nanotube alignment, Carbon N. Y. 7 (2015) 0–10. [3] C. Castro, M. Pinault, D. Porterat, C. Reynaud, M. Mayne-L’Hermite, The role of hydrogen in the aerosol-assisted chemical vapor deposition process in producing thin and densely packed vertically aligned carbon nanotubes, Carbon N. Y. 61 (2013) 585–594. [4] P. Boulanger, L. Belkadi, J. Descarpentries, D. Porterat, E. Hibert, A. Brouzes, M. Mille, S. Patel, M. Pinault, C. Reynaud, M. Mayne-L’Hermite, J.M. Decamps, Towards large scale aligned carbon nanotube composites: an industrial safe-by-design and sustainable approach, J. Phys. Conf. Ser. 429 (2013) 12050. [5] S. Lagoutte, P.-H. Aubert, M. Pinault, F.O. Tran-Van, M. Mayne-L’Hermite, C. Chevrot, Poly(3-methylthiophene)/Vertically Aligned Multi-walled Carbon Nanotubes: Electrochemical Synthesis, Characterizations and Electrochemical Storage Properties in Ionic Liquids, Electrochim. Acta. 130 (2014) 754–765.

Biography:
Cecile Reynaud has her expertise in the synthesis and chemical physics of nanomaterials. Her work has mainly dealt with silicon nanocrystals and aligned carbon nanotubes. She was for 15 years at the head of the Laboratory of Nanometric Assemblies (LEDNA) in the fundamental research division of Saclay CEA center. The LEDNA group follows the "bottom-up" approach of nanosciences. It develops its own synthesis methods and obtains nanostructured materials with well-controlled characteristics. The applications are relevant for energy, health, environmental issues and the development of composite materials. The group also develop the up-scaling of its processes to allow their industrial transfer.

Nadia Sid
Nadia Sid

TWI Ltd Granta Park Great Abington, United Kingdom

Title of Talk: Development and Demonstration of Highly Insulating, Construction Materials from Bio-derived Aggregates

Nadia Sid

TWI Ltd Granta Park Great Abington, United Kingdom

Title of Talk:
Development and Demonstration of Highly Insulating, Construction Materials from Bio-derived Aggregates

Abstract:
The ISOBIO project will develop a new approach to insulating materials through the novel combination of existing bio-derived aggregates with low embodied carbon and with innovative binders to produce durable composite construction materials. These novel composites will target 50% lower embodied energy and CO2 at component level and 20% better insulation properties than conventional material. The project will also seek to demonstrate a reduction of at least 15% in total costs and 5% total energy spent over the lifetime of a building. ISOBIO started by identifying promising organic materials that could be used as insulation. Many of these are classified as waste or by-products of processes like food production. Finely chopped bio-materials such as hemp and straw are treated with hygrothermal resins and nano-particles that make them robust, breathable, moisture resistant, and fire retardant. The bio-aggregates are typically the result of combining organic and inorganic materials; the organic material may have natural insulating properties, for example, while the inorganic material may make the resulting bio-aggregate more robust. Combing organic materials with inorganic materials is not always easy, however. Hemp, for instance, is being combined with lime mortar but the two materials have a degree of chemical incompatibility which could result in a reduction in the strength of the composite material. To overcome this challenge, ISOBIO’s researchers are using nano-technology to increase the interfacial strength between the two materials, giving the resulting composite material improved mechanical and structural properties. The new materials not only improve upon the performance of conventional materials, they also offer new features. Hemp shiv, which is the core of the hemp stalk, for example, has a porous structure that provides moisture buffering to maintain humidity at a more constant level. While the new composite materials may provide more comfort, they need to be at least as robust as conventional materials. To make the hemp-based bio-aggregate water repellent, for example, ISOBIO’s researchers are applying hydrophobic treatments to it. The result is that water vapour can travel in and out of the material but liquid water cannot penetrate it. TWI is exploring the development of novel inorganic-organic hybrid nano-materials, to be applied as a surface treatment onto bio-based aggregates. These nanoparticles are synthesised by sol-gel processing and then functionalised with silanes to impart multifunctionality e.g. hydrophobicity, fire resistance and chemical bonding between the silica nanoparticles and the bio-based aggregates. This talk will illustrate the approach taken by TWI to design the functionalised silica nanoparticles by using a material-by-design approach. The formulation and synthesise process will be presented together with the challenges addressed by those hybrid nano-materials. The results obtained with regards to the water repellence and fire resistance will be displayed together with preliminary public results of the ISOBIO project.

Biography:

Neeraj Mishra
Neeraj Mishra

I.S.F. College of Pharmacy, India

Title of Talk: Development and characterization of Morin hydrate loaded micellar nanocarriers for the effective management of Alzheimer`s disease

Neeraj Mishra

I.S.F. College of Pharmacy, India

Title of Talk:
Development and characterization of Morin hydrate loaded micellar nanocarriers for the effective management of Alzheimer`s disease

Abstract:
The aim of this study was to prepare and characterize oral delivery of Morin hydrate loaded micellar nanocarriers using Pluronic P127 & Pluronic F123 for the effective management of Alzheimer’s disease. After administration of formulation brain and blood drug concentration were found to be highest for optimized morin hydrate loaded micellar nanocarriers as compared to plain morin hydrate. Significant (P < 0.05) reduction in assessed pharmacodynamic parameters was observed after administration of morin hydrate loaded micellar nanocarriers as compared to disease control group. Chronic treatment with morin loaded micelles significantly increased the memory in AlCl3 induced Alzheimer’s disease in wistar rats.

Biography:
Dr. Neeraj Mishra is working as Associate Professor in Department of Pharmaceutics at ISF College of Pharmacy, Moga (Punjab). He has completed his B. Pharm (2000), M. Pharm (2003) and Ph.D.(2011) in Pharmaceutical Sciences from Department of Pharmaceutical Sciences, Dr. H.S. Gour Central University, Sagar (M.P.). He was qualified in National Level Test GATE conducted by IIT, Kanpur in 2001. He is having around fifteen years teaching experience at post graduate and under graduate level. He is also having four years of research experience in Department of Pharmaceutical Sciences, Dr. H.S. Gour Central University, Sagar (M.P.). (2006-2010). He is also having one year of industry experience as production chemist in Symbiotec Pvt. Ltd., Indore (2000-2001). He was recipient of ICMR- SRF (New Delhi, India) (Grant: 45/02/2007-BMS/ PHA Dated 06\07\2007\H.S.Gour) during his Ph.D. tenure. He is having 44 International and 18 National Publication typically in recent concept of novel drug delivery system, particularly in vaccine delivery and drug targeting. He is also written 2 book chapter in national and International publisher (Nova Science Publishers). He is having membership of the Indian Pharmaceutical Association (Life Time membership MP/IND/LM/0086) and Association of Pharmaceutical Teachers of India (APTI) life membership No. is PU/LM-379. He is also guided 30 students for their M. Pharm project work. In Addition to this he is also acts as a reviewer of International repute journal (Journal of Microencapsulation (Informa Pharmaceutical Science). He has successfully organized one AICTE sponsored national seminar on “Emerging trends and applications of nanotechnology” on 11th June 2011 as Organizing secretary as organizing secretary in Swami Vivekanand College of Pharmacy, Indore (M.P.). He has also presented his research work in National and International conferences.

Uttam Kumar Sarkar
Uttam Kumar Sarkar

Department of Physics, Malda College, India

Title of Talk: SERS study of arylazo heterocycles adsorbed on silver nano particles

Uttam Kumar Sarkar

Department of Physics, Malda College, India

Title of Talk:
SERS study of arylazo heterocycles adsorbed on silver nano particles

Abstract:
Surface Enhanced Raman Spectroscopy (SERS) is a surface sensitive technique that results in the enormous enhancement (by 106-1012 order) of Raman Scattering by nano structured metals —a technique that can now detect a single molecule1. The theoretical understanding of SERS, though not definite and still evolving, principally falls into two distinct concepts: (i) long range electromagnetic effect and (ii) short-range chemical effect due to charge transfer between the metal and the adsorbed molecule 2,3 Azobenzene (AB) and its derivatives are active components in various applications, such as liquid crystals, optical switching, memory storage, and photofunctional ionic liquids. Recently, it has been recognized that the photoinduced isomerisation of AB can regulate biological processes that have important implications in pharmacology, nanotechnology, and cell biology.4 Heterocyclic molecules with lone pair of electrons on their heteroatom show significant chemical interaction (chemisorption) with silver nano particles through exchange of electronic charge. The arylazo heterocycles (AAH) are N-heterocycles having two or more heteroatoms, N/O/S and a pendant azo group. Six-membered N-heterocycles being π-deficient are excellent π-acceptors while five membered N-heterocycles are much poorer π-acceptors and hence better π-donors. One of the phenyl rings in AB being replaced by heterocyclic imidazole ring, the phenylazo-imidazole is obtained and an interesting class of heterocyclic azo compounds is thus constituted. These molecules with N-heteroatom have azoimine –N==N– functional group which has interesting properties. Because of the imidazole group and the azo group metal complexes of these molecules are formed which act as a molecular switch. Interaction of these molecules with the nano structured metal surface has, thus been important to study. SERS study of silver nano particle induced dark isomerisation in aryl azo imidazoles5 and their plasmon induced and pH controlled semiconductive conformation6, manifested as “first layer effect”7-10 have further substantiated the possibility of using these AAHs as significant functional materials.

Biography:
Dr. Sarkar carried out his initial research works in the Department of Spectroscopy, IACS, Jadavpur (Kolkata), India, where Prof. C.V. Raman’s Nobel winning spectrograph is archived. He has been awarded with the University Gold Medal and Prof. S. N. Bose Memorial Medal. He published a number of research papers in journals of high impact factors and delivered invited speech in different International Conferences in India and abroad which include a speech at Stony Brook University, New York, USA. The field of his research is “Surface Enhanced Raman Spectroscopy (SERS)”. Dr. Sarkar first observed the “first layer effect” of SERS in silver sol.

Priyanka Nayar
Priyanka Nayar

Jawaharlal Nehru Aluminium Research Development and Design Centre, India

Title of Talk: Preparation of Fe nano-particles and mixed Al-Fe-Ti nano-particles from iron rich industrial rejects for value addition

Priyanka Nayar

Jawaharlal Nehru Aluminium Research Development and Design Centre, India

Title of Talk:
Preparation of Fe nano-particles and mixed Al-Fe-Ti nano-particles from iron rich industrial rejects for value addition

Abstract:
In this study, both chemical precipitation and mechanical milling techniques were used to synthesize either Fe nano-particles or mixed Fe, Al, Ti nano-composites using iron rich industry waste such as red mud as precursor. Further heat treatment of chemically and mechanically treated red mud lead to in-situ formation of nano-sized particles or composites. Such metal matrix composites have attracted much attention due to its use as structural materials in automotive and transportation industries because of their low density, high specific modulus, strength, wear and corrosion resistance. The present work used iron and titanium rich fraction of chemically treated iron rich industrial rejects for preparation of value added Fe and Fe-Al-Ti nano-material. The structural transformation behavior from bulk to nano at different temperatures has been assessed by XRD and SEM. SEM results clearly show that chemical precipitation produced Fe nano-crystals that were obtained after using Fe enriched chemically treated red mud residue whereas mixed nano-material were obtained after mechanical milling.

Biography:
Dr Priyanka Nayar received her Masters and PhD degree in Physics from Guru Nanak Dev University, Amritsar, India in 2005 and 2014 respectively. She worked as a postdoctoral research associate in Nanjing University, China. Recently she is working as a Scientist in a research institute “Jawaharlal Nehru Aluminium Research Development and Design Centre” in Nagpur, India. Her research interests include thin film deposition, nanoparticles synthesis and characterization techniques such as GIXRD, SEM, XRF, NMR, UV-visible spectroscopy etc. Presently She is working on recycling of aluminium industrial wastes into value added products like nanocomposites. Dr. Priyanka is also the author of around 10 research papers in international journals including “Scientific Reports”, “Optical Materials”, “Vaccuum”, “Thin Solid Films” and many more.

Hana Mosbahi
Hana Mosbahi

Laboratoire de Micro-Optoélectronique et Nanostructures, Tunisia.

Title of Talk: Electrical and dielectric properties of AlGaN/GaN HEMTs

Hana Mosbahi

Laboratoire de Micro-Optoélectronique et Nanostructures, Tunisia.

Title of Talk:
Electrical and dielectric properties of AlGaN/GaN HEMTs

Abstract:
Aluminum gallium nitride/Gallium nitrides high electron mobility transistors are excellent candidates for next generation commercial wireless base station amplifications, high-voltages, high-power and high-temperature. These heterostructures contain spontaneous and piezoelectric polarization fields leading to the formation of an interfacial two-dimensional electron gas. These remarkable performances can be obtained by optimizing accurately the device fabrication and material growth. Particularly, with regard to device manufacture, development of high quality surface passivations significantly reduces the surface trap induced of current collapse which is a critical problem in AlGaN/GaN HEMTs and decreases the density of traps at the surfaces. In the present work reports on a study of AlGaN/GaN/Si HEMTs using impedance spectroscopy.

Biography:

Mabrouk
Mabrouk

Laboratory of Physics of Materials and Nanomaterials Applied at Environment (LaPhyMNE), Tunisia.

Title of Talk: Properties of nickel doped In2S3 thin films deposited by spray pyrolysis technique

Mabrouk

Laboratory of Physics of Materials and Nanomaterials Applied at Environment (LaPhyMNE), Tunisia.

Title of Talk:
Properties of nickel doped In2S3 thin films deposited by spray pyrolysis technique

Abstract:
In this work, nickel (Ni) doped indium sulfide (In2S3) films have been prepared by the spray pyrolysis (CSP) technique on glass substrates at 350 °C. The Ni doping level was changed with Ni:In (0, 2 and 4 % in solution). The structural studies reveal that the deposited films are polycrystalline in nature exhibiting cubic structure. The crystallite size decreases from 27.5 to 23 nm and the root mean square (RMS) roughness values increase from 13 to 18 nm. The transmission coefficient is about 70-55% in the visible region and 85-75 % in near-infrared region. The band gap energy increases with nickel content from 2.74 to 2.82 eV for direct transitions. The refractive index values of In2S3:Ni thin films decrease from 2.43 to 2.40 and the extinction coefficient values are in the range 0.01-0.20. Besides, the AC conductivity contribution is interpreted using the universal Jonscher’s power law and it is found thermally activated and it can be described by the correlated barrier-hopping models. These studies help to form significant correlation between temperature and activation energy. Nyquist plots show that the electrical response is accurately fitted by the Cole–Cole model and represented by an equivalent electrical circuit which consists of a parallel combination of a resistance and a constant phase element. From this analysis, the evidence of grain boundary conduction has been observed.

Biography:
M. Kraini received a Phd Degree in Physics in 2016 from the University of Monastir. Currently, he is a membre at the Laboratory of Physics of Materials and Nanomaterials Applied at Environment, Gabes, Tunisia. His main research interests are the synthesis and characterization of nanoparticles and thin films for a variety of applications.

Syeda Sitwat Batool
Syeda Sitwat Batool

COMSATS Institute of Information Technology, Pakistan

Title of Talk: Photocatalytic properties of heterostructure TiO2 nanofibers

Syeda Sitwat Batool

COMSATS Institute of Information Technology, Pakistan

Title of Talk:
Photocatalytic properties of heterostructure TiO2 nanofibers

Abstract:
TiO2 nanofibers were synthesized using electrospinning [Jamil et al Ceramics International 38 (2012) 2437–2441]. The nanofibers were polycrystalline and porous in nature having average diameter and length of ~150 nm and 200 µm, respectively. Fig. 1 (a) and (b) shows scanning electron microscope (SEM) and transmission electron microscope (TEM) image of TiO2 nanofibers, respectively. The bandgap of the nanofibers lies in optical range ˃ 3.2eV. Which showed relatively low photocatalytic degradation of toxic textile dyes (Fig. 2). To improve it photocatalytic activity we embedded Mn0.5Co0.5Fe2O4 nanoparticles into TiO2 nanofibers. Which showed improved photocatalytic activity for the degradation of toxic organic compound (Fig. 2). We are now investigating the effect of photocatalytic water splitting for hydrogen evolution. It is expected that these heterostructure nanofibers will show improve photocatalytic activity for hydrogen evolution via water splitting.

Biography:
Dr. Syeda Sitwat Batool, is an Assistant Professor at COMSATS Institute of Information Technology, Islamabad Pakistan at Physics department. She received her PhD Degree from PIEAS Pakistan. Dr. Batool has over 18 Publications. She has expertise in gas sensors, Photocatalytic activity, and adsorption and electron transport properties of nanomaterials. At COMSATS she is working on Photocatalysis water splitting and degradation of toxic compounds for environmental remediation.

HENRY U NWANKWO
HENRY U NWANKWO

North-West University, South Africa

Title of Talk: Plant-mediated biosynthesis of silver nanoparticles by leaf extracts of Lasienthra africanum and a study of the influence of kinetic parameters

HENRY U NWANKWO

North-West University, South Africa

Title of Talk:
Plant-mediated biosynthesis of silver nanoparticles by leaf extracts of Lasienthra africanum and a study of the influence of kinetic parameters

Abstract:
Lasienthra africanum (LA) leaf extract was employed for nano-silver synthesis. The reducing effect of the plant extract was investigated at different times, pH, temperatures and concentrations. The effect of various kinetic parameters was studied using UV–vis spectroscopy. Blue-shifted surface plasmon bands indicating smaller sized nanoparticles were obtained at neutral pH (6.8–7.0), temperature of 65◦C and concentration ratio of 1:10 (leaf extract: AgNO3) with increasing reaction times under the reaction conditions. The kinetics of the reaction followed pseudo-first- and -second-order rate equations, and was thermodynamically favoured at higher time. Spherically shaped nanoparticles were obtained at different reaction conditions.

Biography:

OLAYINKA OLUWASEUN OJO
OLAYINKA OLUWASEUN OJO

University of KwaZulu-Natal, South Africa

Title of Talk: Synthesis of Graphene Oxide under Differing Conditions and its Characterization

OLAYINKA OLUWASEUN OJO

University of KwaZulu-Natal, South Africa

Title of Talk:
Synthesis of Graphene Oxide under Differing Conditions and its Characterization

Abstract:
Carbon based graphene oxide was synthesized by a modified Hummer’s method with different ratios of graphite to sodium nitrate (NaNO3) of 1:1, 1:2, and 2:1. These variations were carried out to determine which conditions would afford more oxygen functional groups. The products obtained, namely, GO1:1, GO1:2, GO2:1, were characterized by means of powder X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, elemental analysis, and Raman spectroscopy. XRD revealed that GO2:1 is more crystalline than either GO1:1 or GO1:2, while Raman spectroscopy confirmed the in-phase vibration (G-band) of GO2:1 at 1596 nm and the disorder band (D-band) at 1347 nm. Also, TEM showed the expected layer structure of the graphene oxide sheet. FTIR revealed the presence of oxygen functional groups while the elemental analysis confirmed that GO 2:1 has more oxygen functional groups than GO1:1 and GO1:2. Thus, the synthesis of GO with a limited amount of sodium nitrate provided a more crystalline and oxygen-functionalized material.

Biography:
Olayinka Ojo obtained her M.Tech in 2015 from school of chemistry, University of Technology, Akure, Nigeria. Currently, she is pursuing her PhD degree at University of Kwazulu-natal, Durban, South Africa under the supervision of Prof. Sreekantha Jonnalagadda. Her current research interest is focused mainly on the synthesis and application of carbon-based materials.

Sessions:

Nanomedicine and Biomedical Engineering
Dajue Wang
Dajue Wang

Title of Talk: Can quantum life sciences go clinical?

Dajue Wang

Title of Talk:
Can quantum life sciences go clinical?

Abstract:
This talk is to break the myth that quantum life sciences (QLS) are not for clinicians but basic researchers only. It is NOT! Before 1950s, long bone fractures were treated with either non-surgical (conservative) or surgical method by stabilising the ends of the broken segments and make them stick and grow together. It did not work out properly because none of the devices used for the purpose stabilised the ends satisfactorily and translational movements perpendicular to the long axis of the bone ensued. The alignment of the broken segments was not normal. The translational movements beyond the margin of the cross-section of the fractured site caused bone cell to grow outside the bone margin. This is known as the callus. Such a healing process takes at least 6 weeks before the bone can bear some weight. This is known as the “secondary bone healing” through callus formation. Callus is a hard scar-like tissue that is later calcified and ossified as bone tissue. The compression plate introduced by GW Bagby in 1958 changed all this. When placed at the fracture site, it compresses the ends of the fragment segments. The fixation is so rigid that it does not allow any translational movement to take place. The compression triggers an electromagnetic effect and positive and negative ions are created. Between the ions of opposite polarity, metabolism and cell growth occur cross the cell membrane through interaction between transmitters and receptors. In this way, the healing process starts almost immediately and the fractured bone heals directly and quickly. It is coined the “primary bone healing” without ugly callus formation. Supported by the additional enormous strength of the specially designed plate, the fracture site can bear stress (compression or tension) in 2 weeks. This compression and electromagnetic effect combined is known as the Piezoelectric Effect (PE) that is an extremely important part of Quantum Mechanics (QM). PE exists wherever and whenever there are crystals that virtually exist in all cells. I prefer not to use the term Nano Medicine (NM) because nano is only about the size of the material whilst Medicine is restricted to animals. The term Quantum Live Sciences (QLS) involves a much wider scope and explains better how lives work at particle level. As it is described above, medicine has been using this method successfully for more than six decades on a daily basis but, unfortunately, most people do not realise that QM and QLS are right in front of their eyes. There is pressing need to improve our knowledge, as Stephen Hawking puts it: “QM is behind everything in life”. Where does the energy of piezoelectricity come from? It can only come from the Sun, the sole energy source in the Solar System. Herein, the QM comes into play. The next question is how it affects the organisms or living bodies in the perspective of physics. There is no better explanation by the famous Nobel Prize Laureate for Physics Richard P Feynman. It is surprisingly clever that the front cover alone of his immortal book entitled “QED – the strange theory of light and matter” supplemented with 3 graphs is sufficient to tell the audience the very basics of QM and QLS. The energy comes from the ray of bosons/photons (light) emitted by the Sun. When it hits a matter (a cell and an organism are both matters) an electron is created. If a series of electrons are created as a result of collision of multiple photons with the matter involved, electric current ensues. Our secondary school education tells us that the electricity and magnetism are inseparable twins. Hence QM and related QLS are all about electromagnetism that creates ions with resultant interaction of molecules. This is how all lives are created and evolve. Obviously, QLS are much more complex than what I have just described. It would take many years of spare-time study for a clinician to understand and absorb. Assistance from and collaboration with physicists are always helpful and in many cases necessary. Once you know the basics, the door of QLS is wide open to you. Your further efforts will definitely be rewarded with outstanding success.

Biography:
Dajue Wang was brought up in the English-speaking School, St Francis Xavier’s College in Shanghai. He achieved top in both written and spoken English. This has facilitated his reading references on international scale. He also received good results for physics that he was fascinated about. After graduation from the Harbin Medical University (formerly the Japanese Northern Manchurian Medical University), he spent most of his time as both a surgeon and a neuroscientist in the Peking University hospitals and the Neuro-surgical Institute, Beijing Xuanwu Hospital. He has also worked in 5 more other major hospitals for a short period of time. During the Cultural Revolution, he was sent to a Colliery Hospital in Gansu Province as an all-round surgeon. After the Cultural Revolution, he was sent to the University College London and Stoke Mandeville Hospital in the UK as a senior clinical and engineering researcher in 1980. After returning to China, he helped Deng Pufang (Deng Xiaoping’s son) set up China’s first rehabilitation hospital in Beijing. He went back to the UK as a visiting clinical research professor in 1991. His interest is far beyond medicine and he has been granted 4 international patents of innovation. After retirement in 2003, he began to learn Nano-technology and QM by himself. He reads attentively Feynman, Al-Khalili, Hawkings etc. As to life science, he consults Jone’s “Soft Machine”. He has delivered lectures on nanomedicine at the Peking University Third Hospital and the International Association of Neurorestoratology. They were well received.

Felismina Teixeira Coelho Moreira
Felismina Teixeira Coelho Moreira

School of Engineering, Polytechnic Institute of Porto, Portugal

Title of Talk: Development of Paper-based Colour Test-Strip for Alzheimer biomarker detection in point-of-care

Felismina Teixeira Coelho Moreira

School of Engineering, Polytechnic Institute of Porto, Portugal

Title of Talk:
Development of Paper-based Colour Test-Strip for Alzheimer biomarker detection in point-of-care

Abstract:
The present work discloses the creation of an autonomous PAPER-BASED COLOR TEST-STRIP device by integrating a biorecognition element (plastic antibody) that interacts with a biomarker associated to a neurological disorders and depression, amyloid β-42 (Aβ-42) generating a coulored signal that is visible to the naked eye. This was done by establishing suitable chemical changes upon cellulose, attributing the paper the ability to react with the peptide and to produce a colour change. This strategy is combined with molecular imprinting material (MIP) as a bio-recognition element synthesized on cellulose paper surface. We demonstrated when integrates MIP based paper test strips with conventional protein staining methods such as coomassie blue (CB) staining is enough for specific detection and quantification of Aβ-42. The biosensor shows a linear behavior between 1 ng/mL and 10 µg/mL for imprinting material and random behavior for the sensor without the template molecule (NIP). Good selectivity was observed towards protein A (100µg/mL), myoglobin (7.2 mg/mL), bovine serum albumin (1 mg/mL) and fetal bovine serum. The control of the chemical surface modifications were evaluated by FTIR analysis. The disclosed optical (bio)sensor provides an independent read-out, equipment-free, simple, low cost, long pot life and very low detection limit device used for tracking any (bio)molecule of interest, for instance, in health, environment and food safety domains.

Biography:
Felismina Moreira, is graduated in Chemical Engineering of the School of Engineering of the Polytechnique School of Porto, holds a Master degree in Chemistry and food Safety Technology of the Faculty of Science of the University of Porto, and received her PhD in Sustainable Chemistry from the Faculty of Sciences and Technology of the New University of Lisbon, Portugal. Presently, she holds postdoctoral position at BioMark Sensor Research, in the School of Engineering of the Polytechnique School of Porto in collaboration with Imperial College of London, Department of Chemistry and Institute of Biomedical Engineering. Her main research interests are devoted to the development of a) biomimetic materials applied in biomedicine and (bio)sensors, b) selective sensory surfaces applied in (bio) sensors and c) implantable hybrid devices of sensory capacity based on enzymatic biofuel cell.

Zahra Bakhtiary
Zahra Bakhtiary

Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.

Title of Talk: Development of a novel dry powder inhaler of erlotinib-loaded solid lipid nanoparticles for treatment of non-small cell lung cancer

Zahra Bakhtiary

Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.

Title of Talk:
Development of a novel dry powder inhaler of erlotinib-loaded solid lipid nanoparticles for treatment of non-small cell lung cancer

Abstract:
Patients with non-small cell lung cancer (NSCLC) having a sensitizing mutation in the endothelial growth factor receptor (EGFR) gene, are susceptible to EGFR tyrosine kinase inhibitor, Erlotinib. Erlotinib is currently the standard of care in treatment of advanced and/or metastatic NSCLC. Although Erlotinib is available as an oral tablet, to further improve its clinical benefits, local delivery of Erlotinib to the tumor(s) in the lungs can be an innovative strategy. Therefore, the aim of this study is fabrication of an Erlotinib-loaded SLN formulation for developing a dry powder inhaler (DPI) for direct delivery of Erlotinib to the lungs. Optimal compritol/poloxamer 407 SLNs were produced in sub-100 nm spherical shape and showed an encapsulation efficiency of 78.21% for Erlotinib. MTT assay and DAPI staining showed that the SLN formulation enhanced the cytotoxicity of Erlotinib in A549 model NSCLC cell line. The SLNs were successfully spray dried into microparticles (1-5 µm) with mannitol as a carrier. The powder had suitable flowability and aerodynamic behavior and could thus theoretically provide a deep inhalation pattern, as assessed by Carr' Index, Hausner ratio and Next Generation Impactor (NGI). Taken together, the fabricated SLNs can be promising candidates for improving the efficacy of Erlotinib in NSCLC treatment.

Biography:
My name is Zahra and I have received a doctorate of pharmacy (Pharm.D) degree from Tabriz University of Medical Sciences. My thesis was about « Preparation of Dry Powder Inhalation of Erlotinib-Loaded Nanolipidic Carriers and Evaluation of Its Physicochemical and Biological Characteristics”. I'm interested in developing nanoparticle based drug delivery systems for treatment of cancer.

Gabriela Martins
Gabriela Martins

Sensor Research Instituto Superior de Engenharia do Porto, Portugal

Title of Talk: Electrochemical paper-based sensor integrated with molecular imprinting towards point-of-care diagnosis

Gabriela Martins

Sensor Research Instituto Superior de Engenharia do Porto, Portugal

Title of Talk:
Electrochemical paper-based sensor integrated with molecular imprinting towards point-of-care diagnosis

Abstract:
In some kinds of cancer, oxidative stress (OS) is recognized as an early event that contributes to the disease pathology. During this phenomena, the overproduction of free radicals, such as, nitric oxide, can generate cytotoxic species responsible for causing tissue damage. Among others, 3-nitrotyrosine is obtained as a stable end-product of protein attack and has been proposed as a biomarker for diagnosis of OS1. In this context, point-of-care (POC) detection combined with early treatment therapies can reduce the disease's severity, preventing possible complications and subsequently, increasing the survival rates. By looking forward to the last trends in biosensing field, nanotechnology has given a valuable input in the design of innovative electrode-based sensors. In particular, the development of new support materials allowed the improvement of special features like, flexibility, sustainability and cost-effective2. Herein, we have designed the first paper-based biosensor pre-modified with molecularly imprinted polymer (MIP) for the direct detection of 3-nitrotyrosine biomarker. In this work, a carbon-based sensor assembled on paper surface, previously hydrophobized, has been prepared for the determination of 3-nitrotyrosine. Firstly, cellulose paper was wax-printed followed by the manual application of the 3-electrode system composed by silver ink as the pseudo-reference electrode and carbon-based ink for both working and counter electrodes. Afterwards, a thin polymeric layer was assembled in-situ on the paper-modified electrode through electropolymerization of phenol monomer combined with the target molecule 3-nitrotyrosine. Electropolymerization of phenol was performed by Cyclic Voltammetry (CV) over the potential range +0.2 to +0.8 V in KCl (0.1 M) aqueous solution. Due to the redox behaviour of 3-nitrotyrosine, mostly on carbon-based electrodes, the detection and quantification of this biomarker was followed directly by means of voltammetric measurements. During the MIP construction, some experimental conditions, such as, the initial concentration of the monomer, the number of voltammetric cycles and the ratio template-monomer were carefully optimized and the electrochemical performance of the designed MIP sensor was investigated by CV, Square Wave Voltammetry (SWV) and Electrochemical Impedance Spectroscopy (EIS). In parallel, the effect of the potential of pre-accumulation and the scan rate used for the voltammetric reading of 3-nitrotyrosine analyte was also studied. Overall, the developed electrochemical biosensor showed high sensitivity towards 3-nitrotyrosine enabling the detection of this biomarker down to Molar level. Moreover, our results showed a label-free approach coupled to a paper-modified sensing platform with good reproducibility, stability and selectivity for sensitive detection of 3-nitrotyrosine in biological samples.

Biography:
Gabriela V. Martins studied Chemistry in University of Porto and for the last 10 years has been developing scientific work as a researcher. She started with modification and characterization studies of biopolymers for biomedical applications, mostly their behavior on the interface material-biological matrix. During that time, she experienced the need to understand reaction and interaction phenomena in the nano-scale. So, she is currently a PhD student under the Doctoral Programme “Nanotechnologies and Nanoscience” and her PhD program encloses the development of new sensing devices for sustainable point-of-care platforms targeted for the detection of the most relevant biomarkers of oxidative stress in cancer disease.

Catherine Dendrinou-Samara
Catherine Dendrinou-Samara

Aristotle University of Thessaloniki, Greece

Title of Talk: Magnetic ferrite nanoparticles and colloidal superparticles candidates for theranostics

Catherine Dendrinou-Samara

Aristotle University of Thessaloniki, Greece

Title of Talk:
Magnetic ferrite nanoparticles and colloidal superparticles candidates for theranostics

Abstract:
Single-crystal inorganic magnetic nanoparticles (MNPs) have attracted considerable attention over the past decade for both diagnosis and therapy applications (termed as theranostics). Complex magnetic colloidal superparticles (MSPs) that consist of primary MNPs belong to the second generation of magnetic materials with improved and/or collective properties that is very important for the successful and low dosage performance of nanomaterials in medicine. We have undertaken a study1 where we focus on synthetic parameters to control the size, composition, magnetization and hydrophilicity/ hydrophobicity of coated ferrite MNPs, MFe2O4 (where M=Mn, Co, Ni) in an attempt to enforce their performance in bio applications. Specifically, the MNPs designed as fluorescence agents, anti-inflammatory drug carriers, magnetic fluid hyperthermia heat mediators and negative contrast agents for MRI. For the preparation the solvothermal method has been selected as a simple and eco-friendly route providing products that exhibit high crystallinity, even for sizes under 10nm. Shifting from the synthesis of individual MNPs to their assembly into secondary structures, MSPs of the same and/or different building blocks were prepared. Multi-responsive water-soluble graft copolymers were used to serve as a multifunctional polymeric platform for the encapsulation and transfer in aqueous media of hydrophobic MNPs by encapsulation into the hydrophobic cores of the micellar structures of copolymers that also prepared by us. Magnetic hyperthermia study and MRI measurements proved that the materials could be promising candidates for relevant theranostic treatments. Moreover, by combining magnetic and non-magnetic features of NPs, heterostructures of different ratios such as NiFe2O4@Cu2O have been synthesized with antifungal and magnetomechanical properties.

Biography:
Dr. Catherine Dendrinou-Samara is Professor and Director of Inorganic Chemistry Lab., Faculty of Chemistry, Aristotle Univ. of Thessaloniki, GREECE. She obtained her PhD thesis in 1992 from Aristotle Univ. of Thessaloniki while she was visiting Researcher at Inorganic Chemistry Lab of Freie Universitaet Berlin and The Manchester University, UK. Her research interest are on synthesis and characterization of a variety of inorganic compounds and materials ranging from mononuclear complexes to polynuclear one and farther to nanoscale particles that permits to investigate magnetic properties and biomedical applications. She works on controlled synthesis through wet chemical approach of magnetic spinel ferrite nanoparticles for Imaging Diagnostics (MRI) and Therapeutics (Drug carriers, Hyperthermia); Bioactivity of Cu-based nanoparticles and Bimettallic nanostructures. She has an h-index of 30 for 80 indexed publications, with >2600 citations(Scopus).

Jamboor Vishwanatha
Jamboor Vishwanatha

Texas College of Osteopathic Medicine, UNT Health Science Center, Fort Worth, TX

Title of Talk: Bone Microenvironment Targeted Nanoparticles for Metastatic Prostate Cancer Treatment

Jamboor Vishwanatha

Texas College of Osteopathic Medicine, UNT Health Science Center, Fort Worth, TX

Title of Talk:
Bone Microenvironment Targeted Nanoparticles for Metastatic Prostate Cancer Treatment

Abstract:
Purpose The most common site of metastatic prostate cancer is the bone. These metastatic lesions are difficult to treat and often result in off target cytotoxicity from current chemotherapeutics. We hypothesize that targeted nanoparticles (NPs) designed to deliver chemotherapeutics to cancer lesions in the bone microenvironment could improve treatment and the side effect profile that results from non-discriminate action of cytotoxic agents. We have designed a novel targeted nanotherapeutic system to target the bone microenvironment in an effort to more efficiently deliver chemotherapeutics to the site of metastasis. The core of the NPs are composed of poly (D,L-lactic-co-glycolic acid) (PLGA) biodegradable polymer. The PLGA NPs have been loaded with the microtubule inhibitor, cabazitaxel. The surface of the NP has been conjugated with an amino-bisphosphonate through a BS3 (bis(sulfosuccinimidyl) suberate) linker system, which allows for high affinity binding to the hydroxyapatite structure of the bone. Materials & Methods: NPs were formulated using a modified water-in oil-in-water double emulsion solvent evaporation technique. The physiochemical properties of the NPs were characterized. Ex vivo bone binding studies were performed. Cytotoxicity was tested in C4-2B and PC3 cell lines as well as in 3D tumor spheroids. Finally, NPs were tested for efficacy in an intraosseous tumor model of metastatic prostate cancer in athymic nude male mice. Results: NPs were made with favorable physiochemical characteristics: mean hydrodynamic diameter of 236.8 nm ± S.D. 1.19 and mean polydispersity of 0.121 ± SEM 0.003. Cellular cytoxicity assay showed that C4-2B cells were more sensitive to the free cabazitaxel, the non-targeted NPs, and the targeted NPs compared to PC-3 cells. We did not see an appreciable difference between the targeted NPs and equivalent treatment of free cabazitaxel in 3D assays. In vivo analysis showed that both the non-targeted and targeted NPs were more effective than free cabazitaxel at reducing tumor burden. Additionally, targeted-NPs improved bone morphology at tumor lesions and were superior in behavioral tests. Conclusions: In this project we have engineered a bone targeted NP formulation for metastatic prostate cancer. We have determined the chemical and physical characteristics of this system and tested the in vitro cytotoxicity. Finally, we have shown the efficacy of these targeted NPs in an intraosseous model of bone metastatic prostate cancer.

Biography:
Dr. Vishwanatha is a Regents Professor and Vice President, and Founding Director of the Texas Center for Health Disparities at the University of North Texas Health Science Center at Fort Worth. He is a principal investigator of the National Research Mentoring Network, a NIH Common Fund initiative to provide mentorship, networking and professional development for a diversified biomedical and behavioral workforce. He is also a principal investigator of the NIH Specialized Center of Excellence in Health Disparities. Dr. Vishwanatha received his Ph.D. in biological sciences from the University of South Carolina in 1983. Dr. Vishwanatha’s research is in cancer molecular biology, experimental therapeutics and nanotechnology. His laboratory is investigating genetic markers that predict development of aggressive prostate and breast cancers, and nanotechnology-based therapies for breast and prostate cancers. His research is funded by NIH, DOD and other agencies. Dr. Vishwanatha is actively involved in mentorship and networking programs to diversify the biomedical research workforce, and has mentored numerous undergraduate and graduate students from under represented groups in biomedical sciences. As the founding director of the Texas Center for Health Disparities, a Specialized Center of Excellence funded by the National Institutes of Health, he has directed health disparity research, education and community outreach programs. For the past 12 years, he has organized the annual Texas Conference on Health Disparities that attract national speakers and participants. He serves on the external advisory committees for University of Puerto Rico-Cayey, PR; St. Mary’s University, San Antonio, Texas; Alabama State University, Montgomery, Alabama; and Savannah State University, Savannah, Georgia. He has been an active member of the AAMC GREAT Group, SACNAS and ABRCMS.

Sessions:

Nanomedical Approaches for Cancer Diagnosis
Adelaide Greco
Adelaide Greco

University of Naples Federico II, Italy

Title of Talk: Preclinical Imaging for a Theranostic Approach using Engineered Nanoparticles in mice models of lymphoma.

Adelaide Greco

University of Naples Federico II, Italy

Title of Talk:
Preclinical Imaging for a Theranostic Approach using Engineered Nanoparticles in mice models of lymphoma.

Abstract:
Nanoparticles (Np) are used in a wide range of biomedical applications, overall in cancer theranostic field. Hyaluronic acid (HA)-based nanoparticles (NPs) have numerous active groups that make them ideal as tumor-targeted carriers. The Np combined with peptides, allows an efficient in vivo targeting useful to improve drug delivery and clinical outcome. We report the in vivo targeting of aggressive A20 murine B-cell lymphoma by idiotype-specific peptide pA20-36 (Pep) using fluorescence molecular tomographic (FMT) imaging and ex vivo Magnetic Resonance in a xenograft mouse models of lymphoma A20. After that we evaluated the in vitro and vivo therapeutic efficiency of Pep-NPs versus an ad hoc control molecule. Methods: Females Balb/c nu/nu mice (n=44) of 8 weeks old, were studied. Thirtysix mice were subcutaneously injected with 5 x 106 with A20 cell line, while 8 mice were not injected with any cell (ctrl). All mice since cell injection were fed with specific food to minimize the level of intestinal autofluorescence. After 12 days, all mice were divided into 4 groups divided for intravenously injection: the first, Pep-NPs, (n = 12) receives 100 µL of a NPs suspension containing 4 nmol of ATTO680 and decorated with A20-36 peptide, the second, CNT-NPs, (n = 12) receives 100 µL of injected with 100 µl of a NPs suspension containing 4 nmol of ATTO680 decorated with the scrambled peptide, the third, Control, (n = 12) injected with 100 µl of unloaded, non-decorated NPs, the fourth group of Negative Control non-tumor-bearing, were injected with 100 µl of a NPs suspension containing 4 nmol of ATTO680 and decorated with A20-36 peptide. All NPs contained Gd-DTPA. Excitation detection channel was 680 nm for all studies. All procedures are performed under general anesthesia (isoflurane 4% and oxygen 1 L/min). Imaging was performed at 1, 2, 4, 6, 24 h post injection, using the FMT 4000TM fluorescence tomography in vivo imaging system (PerkinElmer, Waltham, MA), which collected both 2D surface fluorescence reflectance images as well as 3D FMT imaging datasets. At the end of the FMT study animals were sacrificed, tumors were surgically removed, and were evenly allocated to an ex vivo FMT followed by confocal microscopy, and ex vivo MRI. High Frequency Ultrasound was used to monitor the tumor growth/tumor reduction in mouse models subjected to therapy. Results: Mice injected with Pep-NPs, showed peak fluorescence at 3h post injection, but at subsequent time points the fluorescence decreases up to 0 at 24h. The fluorescence reflectance signal (FIS% ) was significantly higher (P=0.0001) with Pep-NPs (98.5 ± 46.1) compared to both pCNT-NPs (8.4 ± 1.9) and control mice (7.1 ± 1.7). Even if not significantly, the FlS% of Pep-NPs was always higher than that of the other two groups. For Pep-NPs loaded with Gd-DTPA, ex vivo MRI showed a signal intensity of 175.1 ± 15.8, which was significantly higher than the signal detected for both pCNT-NPs (85.5 ± 7.9) and controls with non-decorated and unloaded NPs (57.9 ± 10.1) (P<0.0001). The latter two groups were not significantly different. Ex vivo confocal microscopy confirmed these data. Finally, the pA20-36-NPs (P<0.0001) and pA20-36 (P=0.02) treated mice had smaller tumors compared with the pCNT and pCNT-NPs treated mice after the first week of treatment (23.1 ± 9.2 vs. 66.5 ± 15.6 vs. 119.9 ± 13.1 vs. 127.1 ± 45.7 mm3, respectively). Conclusion: We demonstrated the ability of NPs loaded with fluorescent and paramagnetic tracers to act as multimodal imaging contrast agents and hence as a non-toxic, highly specific theranostic system. We set up a new imaging system for non invasive diagnosis of B cell Lymphoma and therapy in mice.

Biography:
Professor Greco has more than 15 years of experience in the field of Preclinical Imaging applied to the diagnosis and therapy of mice models of cancer and neurodegenerative diseases. She has got her PhD in the Veterinary University of Naples Federico II where she learned the principles of Radiology in small animal practice. She worked as invited researcher at Marshall University, Department of Biochemistry and Microbiology & Department of Surgery, and Translational Genomic Research Institute Laboratories, Edwards Cancer Center, Huntington, WV, testing nanosystems for drug delivery and therapy in mice models of cancer. Actually she is Professor at the Medical School of Naples Federico II where she worked ad PI in a preclinical Imaging Laboratory hosted at Ceinge Biotecnologie Avanzate, scarl Napoli, italy.

RD Ralandinliu Kahmei
RD Ralandinliu Kahmei

National Institute of Technology Nagaland, India

Title of Talk: Comparative study on the heating efficiency of CTAB coated superparamagnetic MnFe2O4, NiFe2O4 and ZnFe2O4 nanoparticles for Hyperthermia application

RD Ralandinliu Kahmei

National Institute of Technology Nagaland, India

Title of Talk:
Comparative study on the heating efficiency of CTAB coated superparamagnetic MnFe2O4, NiFe2O4 and ZnFe2O4 nanoparticles for Hyperthermia application

Abstract:
CTAB (cetyltrimethylammonium bromide) coated manganese ferrite (MnFe2O4), nickel ferrite (NiFe2O4) and zinc ferrite (ZnFe2O4) nanoparticles with crystallite sizes of 23 nm, 15 nm, and 28 nm respectively were successfully synthesized by a facile co-precipitation method. The presence of CTAB on the surface of the nanoparticles was confirmed by the Transmission Electron Microscope (TEM) and Fourier Transform-Infrared spectrum (FT-IR). The magnetic study shows a high saturation magnetization of 46 emu/g (MnFe2O4), 59 emu/g (NiFe2O4) and 55 emu/g (ZnFe2O4) which indicates the Fe-O-Fe super-exchange interaction driven by the synergistic influence of magnetocrystalline anisotropy and cation distribution. The Field Cooling (FC) and Zero Field Cooling (ZFC) curves confirmed the superparamagnetic nature of all the samples. The induction heating study elucidates the efficiency of heat generation (>42°C) in all samples showing an exceptionally high specific absorption rate (SAR) of 480 Wg-1, 684 Wg-1, 586 Wg-1 at 2 mg/ml in which CTAB-NiFe2O4 nanoparticles shows the highest efficiency. This is attributed to the co-dependent factors: size, saturation magnetization and Neelian relaxation loss mechanism. This comparative study discussed on the collaborative influences of structural motifs and magnetic properties that engendered the effectiveness of heat generation making it viable for hyperthermia application.

Biography:

Sessions:

Carbon nanomaterials, devices and technologies
Olga Glukhova
Olga Glukhova

Saratov State University, Russia

Title of Talk: Novel hybrid carbon nanomaterials for High-Performance Lithium-Ion Batteries

Olga Glukhova

Saratov State University, Russia

Title of Talk:
Novel hybrid carbon nanomaterials for High-Performance Lithium-Ion Batteries

Abstract:
At present, the lithium-ion batteries are the main type of technology used to store energy. The main task on the way of wide use of the batteries of this class is to increase their specific and volumetric energy densities, charging speed, stability in operation. In this regard, the choice of the material for electrodes of the ion-lithium batteries is an actual scientific problem. With the development of the nanoindustry, the production of ion-lithium batteries was improved along with the technology for synthesis of nanomaterials. This led to the emergence of a new direction - ion-lithium batteries based on carbon nanotubes (CNTs), including CNTs decorated with nanoparticles of metal oxides of the MnO2/SnO2/Al2O3 type [1-2]. According to experts [3], ion-lithium batteries on CNTs occupy a central place in the field of energy saving, since they possess a number of advantages, in particular ecological safety of used nanomaterials, the ability to increase the efficiency of energy storage through the functionalization and improvement of nanomaterials based on CNTs, the ability to maintain electrophysical properties in homogeneous and heterogeneous deformations. At the moment, a new and extremely promising branch of the development of ion-lithium batteries is a battery class using a nanomaterial based on gamma-Fe2O3 (maghemite) nanoparticles as a negative electrode. The large reserves of iron in Earth's crust, its nontoxicity, make this material an ideal candidate for industrial use from an ecological and economic point of view. The compounds of gamma-Fe2O3 nanoparticles with CNTs predict an increase in the capacity of the ion-lithium batteries, an increase in the discharge/charge kinetics and electrical conductivity. In addition, developed technology of single-stage synthesis of CNTs with gamma-Fe2O3 nanoparticles inside and on the surface of the tubes [4] allows us to obtain this material in a macro volume, which predetermines its economic benefits for the manufacture of ion-lithium batteries in comparison with others. We developed a prototype of a new class of highly efficient flexible lithium-ion batteries with a negative electrode based on CNT/gamma-Fe2O3 nanomaterial, which is carbon nanotubes decorated with iron (III) oxide gamma-phase nanoparticles. Using the Density Functional based Tight Binding (DFTB) method and the Non-equilibrium Green function method (NEGF) carried out a series of numerical experiments in order to reveal structural and electrophysical properties of CNT/gamma-Fe2O3 nanomaterial. During the investigation we study a mechanism of contact of gamma-Fe2O3 nanoparticles with carbon nanotubes. The enthalpy of formation and binding energy were calculated for considered CNT/gamma-Fe2O3 nanomaterial. The electronic transfer between a gamma-Fe2O3 nanoparticle and a nanotube was considered for the first time. We found the effect of a gamma-Fe2O3 on the conductive properties of CNT, depending on the particle size and the chirality of CNTs. Also we study the effect of deformations on the electrical conductivity of CNTs decorated with gamma-Fe2O3 nanoparticles.

Biography:
O.E. Glukhova, Doctor of science in physics and mathematics, now is a head of Department of Radiotechnique and electrodynamics at Saratov State University and leads the Division of Mathematical modeling in Educational and scientific institution of nanostructures and biosystems at Saratov State University. She received her DSc degree in solid state electronics and nanoelectronics from Saratov State University in 2009. Her main fields of investigation are: nanoelectronics, molecular modeling of biomaterials and nanostructures, molecular electronics, mechanics of nanostructures, quantum chemistry and molecular dynamics, carbon nanostructures (fullerenes, nanotubes, graphene, graphane). She has published about 170 peer-reviewed journal papers and four monographs.

Francisco Jose Maldonado
Francisco Jose Maldonado

University of Granada., Spain

Title of Talk: Carbon Nanogels and Nanocomposites for catalytic applications

Francisco Jose Maldonado

University of Granada., Spain

Title of Talk:
Carbon Nanogels and Nanocomposites for catalytic applications

Abstract:
In recent years, there is an increasing interest on obtaining nanocarbon materials for advanced applications. Between them, carbon gels are a relatively new type of carbons materials first prepared by Pekala [1]. They present additional advantages regarding other carbon materials as purity, homogeneity and a nanometric control of morphology, porosity and surface chemistry. In such a basis, carbon gels are considered as nanocarbons materials with hierarchical porosity [3,4]. They improve the characteristic versatility of classical carbon materials in catalysis based on a very flexible sol-gel synthesis method that permits the combination of a large number of variables. There are four critical steps in the synthesis with many variables: preparation of the initial solution (monomers, concentration, catalyst, pH, etc), polymerization and curing (mould type and dimension, temperature program), drying (supercritical, subcritical or cryogenic drying) and finally, carbonization and/or activation (temperature, time, activating agents, etc). Nevertheless, fitting carefully these variables, materials with specific properties can be designed in a wide range of porous and chemical characteristics. They can be prepared in powder, grains, pellets, films, monoliths or coatings of ceramic structures fitting composition from pure carbon materials to carbon functionalized with heteroatoms, carbon – inorganic oxides composites or metal-doped carbon gels and porosity ranging from macro to microporous materials. Their porosity and surface chemistry can be fitted either by fitting the polymerization conditions or as post-synthesis treatments. In this work different series of catalysts based on carbon gels and composites were prepared, exhaustively characterized by different techniques (textural, chemical, structural and mechanical properties are analyzed) and applied in environmental catalyzed processes (air and water treatments), energetic or fine chemistry synthesis of valuable products. The correlation of the parameters of synthesis, physicochemical properties and catalytic performance is presented, looking for the interactions and synergism between phases.

Biography:
Francisco José Maldonado Hódar is Professor at the University of Granada, Spain, Department of Inorganic Chemistry. Doctor in Chemistry from 1993 by this University his research interest is focused in the areas of Carbon Materials and Heterogeneous Catalysis, developing materials with fitted physicochemical properties to be used as adsorbent, molecular sieves and mainly as heterogeneous catalysts, in processes that involve the environment protection, clean energy or fine chemistry. He is coauthor of more than 100 highly cited manuscript, different book chapters and patents.

REMO MERIJS MERI
REMO MERIJS MERI

Riga Technical University , Latvia

Title of Talk: Fabrication and characterization of thermal, electrical and mechanical properties of ethylene-octene copolymer composites with functionalized multi-walled carbon nanotubes

REMO MERIJS MERI

Riga Technical University , Latvia

Title of Talk:
Fabrication and characterization of thermal, electrical and mechanical properties of ethylene-octene copolymer composites with functionalized multi-walled carbon nanotubes

Abstract:
Modification of polymers with carbon nanotubes allows development of advanced materials for structural, transportation, energetics, electronics and other sectors of national economy. Improvement of exploitation behaviour of carbon nanotubes reinforced polymer composites depends on multiple factors including intrinsic properties of the nanofiller and the chosen matrix material, purposeful tailoring of their interface during manufacturing by prior functionalization of the nanofiller and/or by using customized manufacturing approaches. In the current research various nanocomposite compositions, based on thermoplastic polyolefine copolymer and multi-wall carbon nanotubes (MWCNT), have been obtained via customized master batch approach. Two different ethylene-octene copolymers with distinct 1-octene content (EOC-17 and EOC-30, respectively) have been used to determine the effect of thermoplastic matrix on the structure and properties of the investigated nanocomposites at different MWCNT contents (from 0,2 to 15 wt.%). The nanocomposites have been characterized in respects to their structural, calorimetric, thermogravimetric, elastic and dielectric properties by using appropriate techniques (TEM, FTIR, Raman, TGA, DMTA, DES). Results of the analysis testify that increment of MWCNTs content in the both EOC matrices leads to considerable improvement of elastic, thermogravimetric and electric properties of the nanocomposites already at low nanofiller contents. Although, absolute values of storage modulus of the EOC17 based nanocomposites are considerably higher than in the case of the corresponding EOC30 based nanocomposites, relative MWCNTs reinforcing effect is greater in the latter case due to differences in crystallinity degrees of both polymer matrices. It is also interesting to note that electrical conductivities of less crystalline EOC30 based nanocomposites are greater than those for corresponding EOC17 based systems, most probably due to the facilitated development of conductive MWCNTs network within the electrically insulating polymer matrix. Meanwhile, type of EOC has no considerable effect on thermogravimetric relationships of the investigated nanocomposites neither in air nor inert environment.

Biography:
Professor and Head of the Department of Polymer Materials Technology, Faculty of Materials Science and Applied Technology, Riga Technical University; Leading Researcher in RTU Institute of Polymer Materials; Researcher in RTU Polymer Testing laboratory; Member of the Experts Commission “Engineering sciences and Computer science” of the Latvian Council of Science; Member of the Editorial Board of scientific journal „Environmental Research, Engineering and Management”; More than 20 SCOPUS publications in last 6 years.

JANIS ZICANS
JANIS ZICANS

Riga Technical University , Latvia.

Title of Talk: Characterization of thermal, electrical and mechanical properties of polyethylene terephthalate composites with multi-walled carbon nanotubes for thermoelectric materials

JANIS ZICANS

Riga Technical University , Latvia.

Title of Talk:
Characterization of thermal, electrical and mechanical properties of polyethylene terephthalate composites with multi-walled carbon nanotubes for thermoelectric materials

Abstract:
Depletion of natural resources have caused concerns about future energy supply. Consequently, purposeful use of available energy sources becomes increasingly important. Waste heat harvesting for generation of electricity by using thermoelectric materials offers viable option for operation of sensors, micro- and nanomachines and other smart devices for advanced applications in auto-motive industry, structural engineering, energetics and other fields of national economy. Presently used most effective room temperature thermoelectric materials, based on low band gap semiconductors like bismuth chalcogenides, are expensive and toxic to produce. For this reason, new alternative thermoelectric materials are searched. Polymer nanocomposites, possessing semi-conducting behaviour, like carbon allotropes modified mass-production thermoplastics can offer attractive solution for decreasing production expenses and increasing environmental friendliness of thermoelectric materials. Consequently, in the current research melt compounding of polyethylene terephthalate (PET) composites with various amounts of multi-wall carbon nanotubes (MWCNT) is performed. Structure as well as thermal, electrical and mechanical properties of the manufactured PET/MWCNT nanocomposites are characterized by using transmission electron microscopy, laser flash method, thermogravimetry, broadband dielecetric spectroscopy and dynamic mechanical analysis, respectively. Melt compounded PET/MWCNT nanocomposites present low-frequency independent electrical conductivity already at 1 wt. % of MWCNT content being beyond percolation threshold. Concomitant increase in thermal conductivity depending on MWCNT content is slower, leading to increased thermoelectric capacity of PET/MWCNT nanocomposites because of electrical conductivity enhancement due to the developed carbon nanotube network in the polymer matrix. Power factor and figure of merit of the investigated nanocomposite is further improved by several orders of magnitude by increasing MWCNT content in the PET matrix. Thermal stability and elastic behaviour of the investigated PET/MWCNT composites is also increased by increasing the nanofiller content in the thermoplastic polymer matrix.

Biography:
Dr.sc.ing. Janis Zicans is director of Institute of Polymer Materials (IPM) of Faculty of Materials Sciences and Applied Chemistry at Riga Technical University (RTU) as well as the Founder and Head of the ISO/IEC 17025 accredited RTU Polymer Testing Laboratory. He is author or co-author of more than 110 SCOPUS publications and 18 patents. His research interests are optimization of interphase processes in formation of polymer composites and nanocomposites, as well as development and characterization of polymer composites and nanocomposites with layered silicates, carbon allotropes and metal oxides

Sessions:

Nanobiotechnology
Roberto Grau
Roberto Grau

Universidad Nacional de Rosario./ Argentina.

Title of Talk: Metal nanoparticles as a novel and safe strategy to fight pathogenic spores and antibiotic-resistant microbial biofilms.

Roberto Grau

Universidad Nacional de Rosario./ Argentina.

Title of Talk:
Metal nanoparticles as a novel and safe strategy to fight pathogenic spores and antibiotic-resistant microbial biofilms.

Abstract:
Biofilms are three-dimensional structures that contains billions of genetically identical bacteria submerged in a self-produced extracellular matrix, which protect bacteria from antibiotics and the human immunological defenses. More than 85 % of chronic and/or recurrent human infections are linked to bacterial biofilms. In addition, spore-forming pathogenic bacteria represent an additional community threat because of their intrinsic refractory behavior against antibiotics, phagocytes and their easy utilization in bioterrorist attacks. Therefore, every day the available microbicide arsenal against biofilms and spores becomes scarcer. Accordingly, nano-material biotechnology emerges as a promising alternative for reducing the detrimental effects of microbial-related diseases. Here we describe the development of novel nanostructured coating systems with improved photocatalytic and antibacterial activities. These systems comprise, in one case, layers of SiO2 followed by layers of mesoporous or dense TiO2-anatase, and doping with silver nanoparticles (Ag NPs). In the other case, we developed Copper NPs and its oxides by a chemical method based on a bottom up approach and its stabilization using aminosilanes as surface modifiers. The activity of CuNPs and AgNPs (MNPs) was measured against spores and vegetative (planktonic and sessile) forms of the relevant human pathogens Enterohemorrhagic Escherichia coli (etiological agent of Hemolytic Uremic Syndrome), Listeria monocytogenes (etiological agent of septic abortion), Bacillus anthracis (etiological agent of Anthrax), Clostridium perfringens (etiological agent of food-associated diarrhea and Gas Gangrene), cystic-fibrosis related Pseudomona aeruginosa and methicillin-resistant Staphylococcus aureus ( etiological agent of sepsis and myocardiopathies). The planktonic and sessile growth (measured as the final cellular yield at 600 nm and crystal violet staining, respectively) of each pathogen, as well as the sporocide effect on C. perfringens and B. anthracis spores, was very significant at submillimolar concentrations of MNPs (95 % of vegetative growth inhibition and sporocide effect, p < 0.01). The anti-biofilm effect against the bacterial pathogens was exerted at genetic level as revealed by the downregulated expression produced by the MNPs on transcriptional β-galactosidase and gfp-fluorescence reporter fusions to genes involved in extracellular matrix synthesis. MNP-treatment of pre-formed biofilms dramatically accelerated their dissembling and cellular death without dispersal cell formation. Interestingly, the emergency of MNP-resistant bacterial cells after ten-days of treatment with sub-MIC concentrations of the microbicide was significantly lower (p < 0.01) than the emerged resistance after bacterial treatment with commonly-used available antibiotics. The importance of the MNP treatment adoption as a safe alternative for reducing and preventing pathogen bioburden is discussed.

Biography:
Roberto Grau completed his PhD from Rosario National University in Argentina and obtained his postdoctoral studies from The Scripps Research Institute (TSRI), Department of Experimental Medicine at San Diego, California, USA. He is a Pew Latin American Fellow (San Francisco, USA), a Fulbright International Scholar (WashigntonDC, USA) and the director of the Molecular Microbiology and Environmental Science Laboratory of the National Council of Scientific Research of Argentina (CONICET). Roberto obtained many national and international awards, published more than 30 papers in reputed journals, formed more than seventy profesionals in science and founded and/or catalyzed the creation of half-dozen biotechnological companies.

Edouard alphandery
Edouard alphandery

Sorbonne Universités, UPMC, University Paris 06,France.

Title of Talk: Full disappearance of intracranial malignant U87-Luc glioma in mice by controlled endotoxin release from chains of magnetosomes exposed to an alternating magnetic field.

Edouard alphandery

Sorbonne Universités, UPMC, University Paris 06,France.

Title of Talk:
Full disappearance of intracranial malignant U87-Luc glioma in mice by controlled endotoxin release from chains of magnetosomes exposed to an alternating magnetic field.

Abstract:
The administration of nanoparticles to tumors followed by alternating magnetic field application was shown to efficiently destroy tumors both preclinically and clinically, especially glioma. However, antitumor efficacy remains suboptimal and requires further improvements. We therefore developed a new type of nanoparticles synthesized by magnetotactic bacteria called magnetosomes. Due to their chain arrangement that leads to uniform distribution, ferrimagnetic properties that enhance their heating power and to a controlled release of endotoxins that attract polynuclearneutrophiles, we show that chains of magnetosomes achieve full destruction of intracranial U87-Luc glioma tumors under AMF application in 40% of treated mice using a rather low quantity of magnetosomes administered of 13 µg of magnetosomes per mm3 of tumor. By contrast, under the same treatment conditions, signs of antitumor activity are not observed with chemically synthesized nanoparticles currently used in the magnetic hyperthermia treatment of tumors. It also appears that full glioma destruction is achieved when magnetosomes occupy only 10% of the whole tumor volume, which suggests the involvement of an indirect mechanism of tumor destruction, which is desired for the treatment of infiltrating tumors, such as glioma, for which whole tumor coverage by nanoparticles can hardly be achieved.

Biography:
Edouard Alphandéry has completed his PhD at the age of 27 years from Oxford University and postdoctoral studies from Trinity College and the University of washington. He is assistant professor at the University Paris 6. He has published more than 30 papers in reputed journals and submitted 10 patent families.

Sessions:

Graphene Technologies
T.Theivasanthi
T.Theivasanthi

International Research Center, Kalasalingam University, India.

Title of Talk: Graphene and Nanomaterials

T.Theivasanthi

International Research Center, Kalasalingam University, India.

Title of Talk:
Graphene and Nanomaterials

Abstract:
Science & technology have opened many avenues for nanotechnology in fields such as agriculture, biotechnology, environment, medicine, energy, electrical & electronics, automobiles, mechanical, constructions, information & communications, space etc. This reveals that the nanotechnology provides solutions to the problems arising in these fields. This technology will dominate all the applications oriented fields in coming decades. Nanomaterials are surface enhanced materials have more active sites and can produce more actions. Metal nanoparticles like copper, silver, lead nanopowders and their metallurgical, mechanical, tribological properties are explored in this work. Various Technologies / advanced Materials like low cost / mass production of Graphene, polymers, synthesis, characterizations of metal nanopowders, metal oxide nanopowders, nanofluids, polymer-metal nano-composites and their applications will be explored. Large surface area, high surface‐area‐to‐volume ratio and compatibility with flexible substrates of these materials make them as unique candidate for various applications. Smart materials are changing their properties, in a controlled manner, under the influence of external stimuli. Nanotechnology Enabled Smart Materials are useful in nanosensors and chemical sensors. This work also explains about smart materials, nanomaterials and their applications in various fields including industries (like nanofluids, heat transfer, solar panels, and sensors), biotechnology, biomedical etc. Recent, innovative superparamagnetic plants materials, nano-bio materials and their applications will be discussed. In addition, “Research Motivation” lecture will be presented to motivate students/ researchers.

Biography:
Dr. (Ms) T.Theivasanthi of Kalasalingam University doing research in nanomaterials / nanotechnology; has 14 years of teaching experience; published many research articles/ books and h-index 9; they have been downloaded more than 10000 times; life member of Indian Science Congress Association and Magnetics Society of India; serving as Editorial Board Member/ reviewer for some scientific journals; Lead Editor for the Special Issue on “Advanced Nanomaterial for various Applications” of the Journal of Nanomaterials, Nanoengineering and Nanosystems (SAGE Publications); achieved many awards/ honours/ recognitions including - Madurai Women Achievers Award - 2013, Motivational Award - 2015 and 2015 Women’s Day Award of St.Annes College; achieved World Record in LIMCA Book of Records-2015 for nanotechnology invention “World’s first superparamagnetic plants materials” – named “Santhi Particles”, World Record– 2016 for innovative products "The World’s lowest priced graphene" & "World’s Smallest Particles of Vegetables" and World Record– 2017 for the invention "The World’s Smallest Anti-Viral Plant Particles", other innovative products- Superparamagnetic lead nanoparticles, semiconducting lead Nanoparticles, Low cost-mass production of graphene, agricultural nanofertilisers, vegetable powder for diabetes, plants materials for diabetes & psoriasis and nanoparticles for treatment of EBOLA, DENGUE, HIV & H1N1 virus infection. Govt. of India shows interests to develop her inventions for the benefits of public; she has been invited to deliver lectures (more than 105) in International / National scientific conferences, foreign countries (China, Malaysia, Sri Lanka & Greece) and renowned institutes like National Institute of Technology, Anna University, Central University of all over India; she delivered Motivational Lectures for women, students and staff of institutes / Multi-national corporate companies (Cognizant Technologies); Artha Nyana Academy (Malaysia), ISOM (Malaysia) etc. Economic Times and Telegraph have published news about her research; Thanthi TV, All India Radio, Minnal FM (Malaysia) and Bernama TV (Malaysia) have broadcasted her interviews.

Paolo Bondavalli
Paolo Bondavalli

Multi-functional Material Lab, GTM department Thales Research and Technology, 91120 Palaiseau, France

Title of Talk: Graphene based supercapacitors: results and perspectives

Paolo Bondavalli

Multi-functional Material Lab, GTM department Thales Research and Technology, 91120 Palaiseau, France

Title of Talk:
Graphene based supercapacitors: results and perspectives

Abstract:
Supercapacitors are electrochemical energy storage devices that combine the high energy-storage-capability of conventional batteries with the high power-delivery-capability of conventional capacitors. In this contribution we will show the results of our group recently obtained on supercapacitors with electrodes obtained using mixtures of carbonaceous nanomaterials (carbon nanotubes (CNTs), graphite, graphene, oxidised graphene). The electrode fabrication has been performed using a new dynamic spray-gun based deposition process set-up at Thales Research and Technology (patented). First, we systematically studied the effect of the relative concentrations of Multi-Walled Carbon Nanotubes (MWCNTs) and graphite on the energy and power density. We obtained a power increase of a factor 2.5 compared to barely MWCNTs based electrodes for a mixture composed by 75% of graphite. This effect is related with the improvement of the mesoporous distribution of the composites and to the increase of the conductance as pointes out by Coleman et al. After these results, we decided to test water as a solvent in order to reduce the heating temperature and to obtain a green type process without toxic solvents. To achieve stable suspensions we oxidised the graphene and the CNTs before putting them in water. We observed that changing the Graphene Oxide concentrations we obtained different value of capacitance and energy. The best results were obtained with 90% of GO and 10% of CNTs. We obtained 120F/g and a power of 30kW/Kg. The importance of these results is that it is the first time that these performances have been obtained for graphene related materials using an industrial fabrication suitable technique that can be implemented in roll-to-roll production. In this way we were able to fabricate stable suspensions in less than one hour compared to three days using NMP. All these results demonstrate the strong potential to obtaining high performance devices using an industrially suitable fabrication technique. Finally, new results using mixtures of Carbon nanofibers and graphene will be shown. These new composite allow to use ionic liquid as electrolytes and so to increase dramatically the energy stored in the device without reducing the power.

Biography:
Dr. Paolo Bondavalli, Msc, PhD, Hdr is in charge of the transversal topic on nanomaterials at Thales Research and Technology and he is a member of the Nanocarb Lab. His research has principally dealt with carbon nanotubes gas sensors and silicon nanowires for biological detection. In the last two years, he is the first author of several scientific papers (see refs in project) dealing with CNTFET based sensors, supercapacitors and of 6 patents dealing with gas sensors, thermal management through CNTs, nanomaterials deposition, supercapacitors and memristor-like structures. Presently his work is focused on the development of new materials (e.g. graphene, cnts, nanowires) for the new generation of electronics devices and for energy storage applications and memristor. Dr Bondavalli has received his Hdr in 2011, at Paris-Sud on a work on “devices based on random network of carbon nanotubes”. He is EU expert, and Vice-Chairman, for Marie Curie Fellowships (EIF, IIF, OIF, CIG, IRSES), NMP and ICT panel, for the French National Research Agency (ANR), EDA, Eureka and reviewer for IOP, ACS, IEEE, ECS, Elsevier, EPJ B, Bentham, Taylor & Francis... During the last five years, he has participated, also as coordinator, in several EU projects (concerning MEMS, MOEMS, CNTs, graphene, spintronics) and ANR projects. He is involved in the Graphene Flagship initiative.

Ana María
Ana María

Title of Talk: Oriented 200 Cu2O nanoplatelets supported on few layers graphene as efficient visible light photocatalyst for overall water splitting

Ana María

Title of Talk:
Oriented 200 Cu2O nanoplatelets supported on few layers graphene as efficient visible light photocatalyst for overall water splitting

Abstract:
There is much current interest in the use of solar light for the generation of hydrogen from water. Most of the systems reported so far use a sacrificial electron donor that cannot be employed in real applications. The efficiencies of hydrogen generation in the absence of any sacrificial agent resulting in the simultaneous generation of hydrogen and oxygen in the corresponding stoichiometry is considerably more difficult. In this presentation, I will present data showing the photocatalytic properties of oriented Cu2O nanoplatelets (3-5 nm thick, 20-40 nm lateral dimensions) strongly grafted on graphene is a highly efficient photocatalyst for this process.1 The oriented Cu2O nanoplatelets on graphene are obtained by pyrolysis at 900 ºC under Ar of chitosan containing Cu2+ salts. The ability of chitosan to adsorb large concentrations of transition metal salts and to be a precursor of graphene materials is of crucial importance in the preparation of this highly active photocatalyst and responsible for its properties.

Biography:

Sessions:

Applications of Nanotechnology
Rajiv Prakash
Rajiv Prakash

Banaras Hindu University, India

Title of Talk: Prostate Specific Antigen Aptasensor: Label free cancer detection over graphene quantum dots-Au nanorods hybrid modified platform

Rajiv Prakash

Banaras Hindu University, India

Title of Talk:
Prostate Specific Antigen Aptasensor: Label free cancer detection over graphene quantum dots-Au nanorods hybrid modified platform

Abstract:
Sensitive and label free detection of Prostate Specific Antigen (PSA) is still a challenge in prostate cancer diagnosis. Recently we have developed a label-free PSA aptasensor based on graphene quantum dots-gold nanorods (GQDs-AuNRs) modified screen printed electrodes. GQDs-AuNRs hybrid provides excellent platform for immobilization of PSA specific aptamers and further electrochemical sensing of PSA. For the first time multi-detection of PSA is demonstrated using three techniques simultaneously, viz. cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). Under optimum conditions, sensor shows reproducible results with limit of detection (LOD) of 0.14 ngmL-1. Aptasensor is also demonstrated in real samples with satisfactory results.

Biography:
Rajiv Prakash is professor and coordinator of the School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India. He has been recipients of Young Scientist (Council of Science and Technology), Young Engineer Awards (INAE) of India and Materials Society Medal Award of India. His current research interests include synthesis of morphology controlled organic conducting polymers, nanocomposites, fabrication and characterization of organic electronic devices and sensors/biosensors. He is having more than 150 publications in international journals of repute and 17 patents in his credit. He is in Editorial Board of several National and International Journals. He is member of various national committees including DST-TIFAC for India Vision 2035 and MHRD “IMPRINT” program.

Sessions:

NANO ELECTRONICS
Sergey G.Lebedev
Sergey G.Lebedev

Title of Talk: Phonon Resonators

Sergey G.Lebedev

Title of Talk:
Phonon Resonators

Abstract:
The nanocrystallite has the finite number of the oscillation modes. Their number increases proportionally to a cube of the characteristic size. Thus the oscillation spectrum of nanocrystal becomes discrete, and the separate modes of oscillations do not interact with each other, that considerably strengthen all phonon modulated processes in a crystal. Covering of such a nanocrystallite with the shielding surface of a material with the higher nuclear weight will allow creating the phonon resonators whose oscillation modes will represent the standing waves and, will be amplified by the resonant manner. The composites made of phonon resonators will allow producing a perspective functional material for the electronics with adjustable structure and properties. Some new mechanism of HTS based on phonon resonators is proposed.

Biography:
Sergey G.Lebedev was born in 1956 in the sity of Kursk, Russia. Dr. Sergey G.Lebedev has graduated from the Moscow Physical Engineering Institute, 1980. In 1983 S.G.Lebedev has graduated from Dept. of Mathematics of the Lomonosov Moscow State University. Since 1980 up to now he has worked at the Institute for Nuclear Research of Russian Academy of Sciences. In 1990 S.G.Lebedev has obtained his PhD. Dr. Lebedev is the author of 150 scientific articles. He is a member of International Nuclear Target Development Society. The whole point of his life is in science and his whole life devoted to science. The prime interests of S.G.Lebedev are in the fields of point radiation defects and superconductivity. Now he occupied the position of Senior Scientist, Head of research team.