E-mail: contact@worldnanoconference.com | USA : +1-646-828-7579, UK : +44-203-695-1242 | April 05-07, 2017, Barcelona, Spain  

SCIENTIFIC PROGRAM

Keynote Speakers

Masaru Matsuo
Dalian University of Technology, China
Title: One of the proposals to convert natural mechanical energy to elastic energy as a function of pressure by using the porous material with high elastic and permittivity

Biography: Masaru Matsuo has completed his PhD at Kyoto University in Japan and he was a professor of Nara Women’s University. After his retirement, he became a full time professor of Dalian University of Technology in China. Since September 1st 2014, he is a visiting professor of Dalian University of Technology. He has published more than 200 papers in refereed journal articles. He is IUPAC fellow and he received Paul Flory Polymer Research Prize on April 2010.

Abstract: Drastic increase in population provides a large amount of lack of electrical energy. Air pollution by consumption of fossil fuel poses various health problems and accident of nuclear power generation wreaks havoc. At present, it is very important to harvest electrical energy from mechanical energy of nature. In the present work, the polyurethane (PU) continuous fibrils were covered by CuPc (copper phthalocyanine) grains perfectly in PU/CuPc composite as a special technique, which indicated the preparation of dielectric elastomer with high elasticity.
The adoption of the sponge-like PU foam was to achieve volume change along vertical compression direction without expansion in the transverse direction and the copper plates were used as electrodes. The electrical energy of the resultant composites was evaluated under compression and relief processes.
To analyze the mechanism, frequency dependencies of complex impedance (Z*), complex permittivity (ε*) and complex electrical modulus (M*) as well as the Cole-Cole plots for Z* and M* were measured under compression and recovery. The theoretical analysis was performed by using combinational models with several circuits to analyze one suitable model systems concerning conversion from natural mechanical energy to electrical energy. The results indicated that high complex permittivity of the CuPc film at low frequency was attributed to huge polarized polarons within CuPc grains in addition to interface polarization between the electrode and CuPc. The dielectric effect of the CuPc/PU composite was attributed to interface effects between CuPc grains coating on PU fibrils and between the grains and electrode. The interface effects were thought to be due to tunneling effect in terms of theoretical aspect. The above results of CuPc film indicated that materials with high permittivity and high elasticity play an important role to obtain electric energy from natural mechanical energy. The dreamy future application to hydro plant is to set large dielectric elastic condensers on the bottom of dams constructed at upper stream and lower stream, which shall be discussed in relation to water flowing at the daytime and pumping water at night in detail.


Kattesh V. Katti
Institute of Green Nanotechnology, University of Missouri, Columbia, Missouri, USA
Title: Green nanotechnology—Implications in materials science and medicine—Creation of new nanomedicine agents

Biography: Professor Kattesh V. Katti is internationally recognized as a leader in the interconnecting fields of—chemistry, radiopharmaceutical sciences, nanotechnology/green nanotechnology and nanomedicine—for biomedical applications, specifically for molecular imaging and therapy of living subjects. The impact of Dr. Katti’s work is widespread, as his pioneering discoveries and strategies, originally developed in his laboratory in bioconjugate chemistry and Nanomedicine, and green nanotechnological tools, are used in many laboratories, industries and hospitals around the world. His contributions in nano and green nanotechnologies have already created a transformative progress in nanomedicine by aiding molecular imaging to help diagnose and manage therapy—all at the cellular levels. Dr. Katti’s ground breaking discoveries in green nanotechnology where he has demonstrated that biocompatible nanoparticles can be produced without the intervention of any toxic chemicals, through phytochemicals of high antioxidant capacities and tumor receptor specificities have created a new generation of molecular imaging and therapeutic nanoceuticals. His approach to green nanotechnology has furthered the scope of holistic and integrative medicine with implications in modulating signaling pathways allowing optimization of therapies targeted to tumor cells/regions without causing adverse toxic effects to normal cells. These original discoveries are expected to have a major impact on how molecular imaging and therapies will eventually be individualized to allow their greater success through theranostic approaches using radioactive nanoparticles, photothermal therapy using targeted nanoparticles and novel therapies involving phytochemicals. Myriad of such approaches developed by Dr. Katti are already impacting clinical translation through comparative oncology in realistic ways as new drugs are being validated for their efficacy in imaging and therapy using tumor bearing dogs where the disease mimics human conditions. In recognition of his original contributions, Dr. Katti has been awarded a number of international awards and citations which include: Winner of the 2016 'Person of the Year in Science' award. Dr. Katti has been selected for this coveted award for his pioneering research to connect India's 5000 year old traditional holistic medicine (Ayurveda) with scientifically sound nanomedicine through his ingenious green nanotechnology research. This work has created a new field of holistic medicine which Dr. Katti refers to as nano-ayurvedic medicine. Selected for the 2016 RMIT Foundation Fellowship Award. International Hevesy Medal Award (2015) for excellence in Nuclear Sciences; Elected to the fellowship of the National Academy of Inventors (2015) recognizing the discovery of ‘Katti Peptides’; One of the ‘25 Most Influential Scientists In Molecular Imaging in the World’ award by RT Image, the ‘Father of Green Nanotechnology’ citation by the Nobel Prize Winner Norman Borlaug, Gauss Professorship—Hall of Fame—from the Gottingen Academy of Sciences, ‘Outstanding Scientists Fellows’ award and induction as a Fellow of the Academy of Science, St Louis—one of the oldest scientific academies of the world and many more. In 2013, Dr. Katti was elected as a fellow of the American Association for the Advancement of Science with a citation “for distinguished contributions encompassing nanoscale chemistry, particularly for ground breaking discoveries enabling application of nanotechnology concepts for biomedical applications”. His unprecedented discovery of the production of tumor specific gold nanoparticles through 100% green processes have been cited as the Editor’s choice in Nature, Future Medicine, in Science (AAAS), in Popular Science, by the Discovery Channel and have been highlighted in scientific/medical programs of the British Broadcasting Corporation (BBC, London).

Abstract: This Inaugural/Plenary Lecture discusses discoveries made in our laboratory of novel nanomaterials through Green Nanotechnology and their toxicological profiles toward their ultimate applications in molecular imaging and therapy. A large number of nanoparticles and engineered nanomaterials are being developed for applications in medicine for imaging/therapy and theransotic applications. Therefore, the toxicological characteristics of various nano constructs are important in order to utilize the new nanomedicine modalities for human applications. Our laboratory has pioneered on ‘Green Nanotechnology efforts toward the utility of high-antioxidant-capacity of various non-toxic phytochemicals (from herbs, plants and fruits) to produce nanoparticles through direct interaction of phytochemicals with gold salts (without the intervention of any toxic chemical). Our laboratory has also pioneered on the utility of non-toxic ‘Katti Peptides’(http://static1.squarespace.com/static/556cbf19e4b0ae9bddf583f2/t/556dd9bde4b0f81335c0bb76/1433262525097/Katti_Peptide.pdf) for the development of tumor specific gold nanoparticles. Our overall strategy toward the design and development of nanoparticle-based molecular imaging and therapy agents has encompassed synthesis of engineered and tumor specific nanoparticles through Green Nanotechnology and toxicology testing in animals (pigs and dogs) where the pharmacokinetics mimics human physiology so that the results can be directly translated for use in humans. In this lecture, discussions will focus on novel Green Nanotechnology approaches for (i) the development of nanoparticles derived from redox active phytochemicals from tea, grapes, African herbs/roots; (ii) Complete toxicological profile of hybrid nanoparticles; (iii) combination of therapeutic approaches involving FDA approved cytotoxic agents and nanoparticles with capabilities to modulate cellular redox systems and (iv) Overall oncological implications of Green Nanotechnology in the context of reducing the toxicological burden and alleviating global burden of cancer in terms of cost, achieving enhanced efficacy and making phytochemical-based cancer therapeutic agents available globally at affordable costs


Leonhard Grill
University of Graz, Austria
Title: Single Functional Molecules at Surfaces: Switches, Wires and Motors

Biography: Leonhard Grill is an experimental physicist specialized on the study of single functional molecules. By using scanning probe microscopy, his group is able to image and manipulate individual atoms and molecules adsorbed at surfaces and to characterize specific molecular functions. In this way electronic, electrical, optical or mechanical properties of individual molecules are controlled with the goal to obtain fundamental physical and chemical understanding of these processes. L. Grill received the Feynman Prize in Nanotechnology (2011) and is professor for Physical Chemistry at the University of Graz, Austria, since 2013.

Abstract: Molecular nanotechnology and mono-molecular electronics want to use functional molecules as individual machines or electronic devices. Hence, their self-assembly into pre-defined architectures and the full control over each individual molecule are key objectives. Various examples of functional molecules, ranging from molecular wires to molecular switches and machines that are studied by scanning tunneling microscopy (STM) under ultrahigh vacuum conditions, will be discussed in this presentation. Molecular wires [1] or molecular nodes with different conjugation pathways [2] can be fabricated from specifically designed molecular building blocks that are connected to two-dimensional networks or one-dimensional chains. In the case of molecular switches, the switching rate can be tuned up and down either via the surface atoms [3] or by only one single atom in the vicinity of the molecule [4]. The same effect is then extended to molecular assemblies where cooperative effects in single molecules are directly observed. The switching process can also be used to trigger a molecular motor where the lateral translation of molecular machines on a surface can be enhanced by light of specific wavelengths that match the absorption properties of the molecule [5]. By comparing molecules with and without a motor unit, the enhanced motion can be directly assigned to the motor that is incorporated in the molecules.


Gérard FEREY
Université de Versailles St Quentin and CNRS, France
Title: Hybrid porous solids: from their formation to their societal applications

Biography: Professor Férey is worldwide a recognized expert on porous solids. His group in Versailles devotes his researches on inorganic and hybrid porous solids with nanometric cavities (MOFs), from the mechanisms of their genesis to their applications in the domains of energy, environment and health. This led to more than 600 papers in the best journals. Professor Férey received numerous prestigious national and international scientific recognitions from all the developped scientific countries. Gold medal 2010 of CNRS, Foreign Member of several Academies, the laureate 2014 of the EuCheMS Award lecture, he is also Doctor Honoris Causa of the Lomonossov university of Moskow.

Abstract: The nanoworld concerns both matter and holes. This lecture relates more to the last point and concerns porous solids and, among them, those with a hybrid architecture, based on hybrid organic-inorganic frameworks, called either Metal-Organic Frameworks (MOFs) or Porous coordination polymers (PCP). It is a new topical domain in Chemistry and Materials Science. This lecture presents an integrated approach of their development, including their synthesis, their mechanisms of formation in a solvothermal medium, their structures, their chemical and physical properties (far beyond those already intensively exploited by the inorganic zeolitic materials : gas storage, selective adsorption, catalysis) and, finally, their new applications, already developped in industry, which concern the current societal problems linked to energy, energy savings, environment and health. This global approach, which now allows the logical discovery of tunable, stable and scalable tailor-made solids, makes them the currently best multi-functional materials ever discovered. In particular, an industrial development at the ton scale of some of these materials will be shown ; it is dedicated to energy concerns.


Haruo Sugi
Teikyo University Medical School, Japan
Title: Liquid cell electron microscopy as a strong tool to elucidate mysteries in the molecular mechanism of muscle contraction

Biography: HaruoSugi graduated from Postgraduate School in the University of Tokyo with the degree of Ph.D. in 1962, and appointed to be instructor in Physiology in the University of Tokyo Medical School. He worked in Columbia University as a Research associate, and in National Institutes of Health as a Visiting Scientist from 1965 to 1967. He was Professor and Chairman in the Department of Physiology, Teikyo University Medical School from 1973 to 2004, when he became Emeritus Professor.

Abstract: Muscle is regarded as a machine to convert chemical energy derived from APP hydrolysis into mechanical work. Since the monumental discovery of Huxley and Hanson (1954) that muscle contraction results from relative sliding between actin and myosin filaments coupled with ATP hydrolysis, extensive studies have been made to answer the question, what makes the filaments slide past each other? In 1969, Huxley has put forward a hypothesis that the myofilament sliding is caused by attachment-detachment cycle between myosin heads extending from myosin filaments and actin filaments; a myosin head first attaches to actin, undergoes a conformational change to produce unitary myofilament sliding, and then detach from actin. Despite extensive studies, the myosin head movement (power stroke) producing myofilament sliding still remains to be a matter for debate and speculation. A most straightforward way to visualize and record myosin head power stroke coupled with ATP hydrolysis is to the use techniques of liquid cell electron microscopy. Since 1997, we have been studying ATP-induced myosin head power stroke using mixture of actin and myosin filaments mounted in the liquid cell, with which the specimen is kept wet, living state in the electron microscope (magnification, up to 10,000X). The results are summarized as follows: (1) In the absence of ATP, time-averaged myosin head position remains unchanged; (2) In response to iontophoretically applied ATP, individual myosin heads exhibit power stroke in a reversible manner; (3) The amplitude of power stroke in the isometric condition is ~3.3nm and ~2.4nm at the distal and the proximal regions of myosin head catalytic domain, respectively; (4) At low ionic strength, the amplitude of power stroke increases to ~5nm at both the distal and the proximal regions of myosin head catalytic domain, being consistent with our previous results that the isometric force generated by individual myosin heads in single skinned muscle fibers increases ~twofold at low ionic strength. These results indicate that liquid cell electron microscopy is a powerful tool to elucidate mysteries in the research field of life sciences.


Nanomaterials
Nanodevices

Session Introduction

Mukunda P Das
The Australian National University, Australia
Title: Understanding Metamaterials in the Realm of Smart Materials

Biography: Mukunda Das is Honorary Professor in Theoretical Physics. He is Fellow of American Physical Society, Institute of Physics (UK) and Australian Institute of Physics. His research interest concerns the fundamental aspects of condensed matter, which include Superconductivity, Vortex Matter, Bose-Einstein Condensation, Meso- and Nanoscopic Systems, Strongly Correlated Electrons, Density Functional Theory and Theory of Disordered States. He is also interested in the professional ethics, an important subject of philosophy. He has been member of Editorial Board of many International Journals, namely- J. Physics: Condensed Matter (IOP)(2002-12), GSTF J of Physics and Applications, ANS J of Nano Sc and Nanotech (IOP), Int J Cond Matter, Advanced Materials and Superconductivity Research, Nova Sc., New York and others.

Abstract: Unlike conventional materials like metals, insulators and semiconductors etc. the smart materials are designed materials, whose properties can be engineered in several ways. Metamaterials appear under the class of smart materials, fabricated from assemblies of multiple elements from composites materials or plastics to exhibit specific electromagnetic or acoustic propertiewhich are not observed in materials commonly found in nature. Here we shall focus on one particular type: acoustic metamaterials (AMM). Over the past decade there has been significant development in the field of acoustic metamaterials at the cutting edge of science and technology. AMM has many novel properties, which can be manipulated for unusual applications. In this talk I shall present a brief history of ‘metamaterials’ with particular emphasis on AMM. Like metamaterials for electromagnetic field, AMM has a special feature of double negative parameters in a band of frequencies in acoustic fields. These parameters in AMM are effective density and bulk modulus. Manipulation of these special properties leads to novel applications, which I shall highlight. An example of seismic waveguide of artificial AMM will be presented based on our recent work (arXiv: 1607.02913v1).


Abraham Clearfield
Texas A&M University, USA
Title: Surface Functionalization as a Path to Unusual Functionalities

Biography: Professor Abraham Clearfield is an internationally known inorganic chemist. He gained experience in industrial research laboratories before settling on an academic career. Clearfield has published 610 scientific papers in peer reviewed journals, has edited five books and holds 16 patents. He served as Associate Dean of the College of Science at Texas A&M University and was responsible for initiating the Materials Research Program. He discovered the four major layered group, fourteen phosphates, examined their structures, ion exchange, proton conduction and catalytic properties. Clearfield developed the field of metal phosphate chemistry. He is among the 5% most highly cited American Chemists.

Abstract: Our initial focus will be on the properties of α-zirconium phosphate (ZrP) their preparation as nanoparticles and, properties as intercalants as well as their surface properties. The intercalation of inorganic materials between the ZrP layers has resulted in a wide range of applicability. The applicability of the intercalated system is largely dependent upon the species intercalated. More recently the surface modification of ZrP has been investigated and it has been shown that the exterior layers can be exclusively functionalized with a variety of compounds. The advent of this surface chemistry allows for the synthesis of a broad level of nanoparticles with many applications that will be detailed. Of particular importance is the ability of bonding MOFs to the surface of ZrP. This is done using a layer by layer approach. X-ray diffraction provides the surface structure in which the porosity of the MOF is unaltered. Thus, the properties of the surface depend upon the number of layers fixed to the surface. Examples will be presented. MOFs that cannot be prepared in solutions may be constructed by the layer by layer approach.


Ángel Pérez del Pino
Instituto de Ciencia de Materiales de Barcelona, Spain
Title: Matrix assisted pulsed laser deposition of hybrid graphene-based functional thin films

Biography: Dr. Angel Perez del Pino obtained the Physics Degree (1999) and got the PhD (2003) at the University of Barcelona. Later, he joined the Institute of Materials Science of Barcelona (ICMAB-CSIC). He got a senior research scientist position (2009) and created the Laser Processing Research group at ICMAB. He is specialist in processing of functional nanomaterials by laser techniques, particularly by Laser Direct Writing (LDW) and Matrix Assisted Pulsed Laser Evaporation (MAPLE). The group is pioneer at the international research scenario in the laser-induced structural transformation and MAPLE deposition of hybrid nanocomposites based on carbon nanostructures (nanotubes and graphene derivatives).

Abstract: Great attention is being focused in graphene-like materials due to their outstanding physical and chemical properties. These materials are promising elements to be used in an extensive range of applications such as electronics, energy, biomedicine, and environmental processing [1]. Furthermore, chemical modification of graphene-like materials as well as their decoration with transition metal oxide (TMO) nanostructures are particularly interesting for obtaining compounds with enhanced functionality in photo- and electrochemical applications [2,3]. Conventional methods have demonstrated capability for the synthesis of such materials, although they can reveal limitations due to low solubility of crucial components, chemical incompatibilities, or agglomeration of graphene sheets and nanostructures. Besides, these methods usually imply complex multi-step procedures using toxic chemicals and high temperature annealing during several hours. Intense laser radiation can induce complex structural transformations in materials by means of photo- and thermally-induced mechanisms in a fast and versatile way [4]. Thus, laser-based technologies can represent a non-toxic and easily scalable to industry alternative to conventional methods. In this presentation, results on the laser-induced deposition of hybrid thin films composed of reduced graphene oxide (rGO) and TMO nanostructures will be shown. Particularly, ultraviolet matrix assisted pulsed laser evaporation (UV-MAPLE) experiments are performed using frozen dispersions of GO sheets and TMO nanoparticles. Simultaneous deposition and chemical transformation of the initial species is achieved through UV-MAPLE processing in reactive environments, leading to the development of functional nanocomposites in an easy, environmentally friendly and versatile way [5-9]. The physico-chemical mechanisms appearing during UV-MAPLE deposition as well as their influence in the reduction and doping of GO material will be discussed.


Jerry Bernholc
North Carolina State University, USA
Title: Computational Exploration and Design of Nanoscale Sensors and Devices

Biography: Jerry Bernholc is Drexel Professor of Physics and the Director of the Center for High Performance Simulation at North Carolina State University. Since 2002, he also serves as a Visiting Distinguished Scientist at Oak Ridge National Laboratories. He is a fellow of APS, AAAS, and MRS, and a recipient of IBM's Outstanding Innovation Award, NCSU Alumni's Outstanding Research Award, NSF's Creativity Award, and Beams Award for Outstanding Research from the American Physical Society. Bernholc received his Ph.D. from the University of Lund, Sweden, was a Postdoctoral Fellow at IBM Watson Center and a Senior Physicist at Exxon Research and Engineering Company.

Abstract: We describe large-scale ab initio simulations of nanoscale sensors and transistors, which can predict the best performing structures. In the sensors part we focus on mechanisms of detection of small molecules: ammonia, nitrogen dioxide, glucose and ethylene by nanotube-based sensors, and on a novel nano circuit involving a nanotube functionalized with a fragment of polymerase I enzyme. The nano circuit monitors replication of a single-stranded DNA and can potentially be used to sequence DNA by detecting electrical signatures of the adding bases. We discuss modifications that should enable reliable distinction between some of the bases, and our work towards complete sequencing. We also describe computational optimization of nanoscale transistor structures consisting of a carbon nanoribbon channel, BN insulating layers and an Al gate.


Vlasta Bonačić-Koutecký
Humboldt Universitat zu Berlin, Germany
Title: Design of ligated metallic nanoclusters with catalytic and nonlinear optical properties for hydrogen storage and bio-imaging

Biography: Prof. dr. dr. h. c. Vlasta Bonačić-Koutecký is a Professor in a Department of Chemistry, Humboldt University, Berlin. Since 2010 she has established the Interdisciplinary Center for Advanced Science and Technology (ICAST) at the University of Split, Croatia and became a head of Center of Excellence STIM in 2014. In the field of nanoscience she has recognized, before others, that metal nanoclusters (with only several atoms) have unique structural, optical and reactivity properties which are in between those of molecules and metals. This added a new unexpected dimension to the traditional nanoscience, introducing small metal nanoclusters into material science within the field of nanocatalysis for renewable energy as well as nanooptics and nano-biosensing for medical diagnostics

Abstract: Nature uses a number of design principles to create different classes of enzyme catalysts capable of a wide range of chemical transformations of substrates. Embedding the metal center within a ligated nanocluster also facilitates reactivity, which can be further tuned by the choice of ligand. We examined theoretically and experimentally how the binuclear silver hydride cation, [Ag2(H)]+, can be structurally manipulated by the appropriate choice of phosphine ligands to switch on the protonation of the hydride by formic acid to liberate hydrogen, which is a key step in the selective, catalysed decomposition of formic acid that does not occur in absence of ligands. The selective, catalysed decomposition of formic acid has potentially important applications in areas ranging from hydrogen storage to the generation of in situ hydrogenation sources for reduction of organic substrates. Implementation of found gas phase reactions into zeolites opens the avenue to propose new catalysts for the decomposition of formic acid. Nonlinear two-photon apsorption (TPA) is defined as electronic excitation of a molecular system induced by the simultaneous absorption of pair of photons and is accessible with femtosecond pulses delivered with standard femtosecond oscilators with wavelengths tunability in 700-1300nm range. This is therefore advantageous to access deeper penetration into the biological tissue media, important for bio-imaging. We report theoretical and experimental results on TPA cross sections of ligated silver clusters exhibiting extraordinary large TPA with aim to design new ligand-core nonlinear optical flourophores with considerably improved spacial resolution. Our findings provide the responsible mechanism and allow proposing new classes of nanoclusters with large TPAs which are promising for numerous applications.


Vladimír Špirko
Academy of Sciences of the Czech Republic, Czech Republic
Title: Localised Quantum States of Atomic and Molecular Particles Physisorbed on Carbon-Based Nanoparticles

Biography: M.Sc.1964. Ph.D. 1968. D.Sc. 1990. Appointments : 1964-67 : Institute of Chemical Technology in Prague. Since 1967: Czechoslovak Academy of Sciences in Prague. Since 2014 : Charles University in Prague. Editorial boards : Coll.Czech.Chem.Commun., J.Mol.Spectrosc. Appointments Abroad : Adjunct Professor, University of Waterloo, Waterloo, Canada. Stays Abroad: University of Aberdeen, National Research Council of Canada, Aarhus University (multiple), Max-Planck-Institut of Astrophysics (multiple), University of Exeter, University of Wuppertal, University of Michigan (multiple), Jackson State University (multiple), Ibaraki University, University of Delaware

Abstract: The vibrational states of atomic and molecular particles adsorbed on finite carbon nanoparticles are described using reliable theoretical potentials and appropriate vibrational Hamiltonians. Although these particles do not exhibit strict periodicity, the energy patterns of their states resemble closely the usual Bloch bands and gaps. In addition, for any finite nanoparticle, these patterns are enriched by the presence of ''solitary'' energy levels. While the band states are profoundly delocalized, due to a fast tunnelling of the adsorbed particles, the ''solitary'' states exhibit strong dynamical localization, similar to the behaviour of the states of the Wannier-Stark ladders in optical and semiconductor superlattices. It is thus not unthinkable to view the probed nanoparticles as nanoscopic/mesoscopic variants of the macroscopic semiconductor and optical lattices and, consequently, as possible candidates for formation of a novel kind of the Wannier-Stark-effect based devices, for instance formation of nanoscopic analogs of the macroscopic electro-optical modulators


Fabrice LEROUX
Institut de Chimie de Clermont-Ferrand (ICCF), France
Title: Versatility of Layered Double Hydroxide platelets in Polymer Nanotechnologies

Biography: Dr. Leroux obtained a doctorate (Ph.D.) from the Institute of Materials Jean Rouxel, Nantes, France. Since 2010, Dr. Leroux is the manager of the international board of International Symposium on Intercalation Compounds (ISIC). Currently Dr. Leroux has a CNRS senior research position and in 2017 he will be the director of the Chemical Institute of Clermont-Ferrand (ICCF), France. He has published about 200 scientific publications and is co-inventor of 20 issued patents.

Abstract: Two-dimensional inorganic materials due to their structural anisotropy and possible chemical versatility are extensively studied for their application as filler for polymer, this in an attempt to fulfill the ever-growing topical needs in different nano-technologies regarding safety (flame retardant and thermal stabilizer), functionalities (pigments, biocide), as well as eco-friendly and environmental aspects (bio-source). The proposed talk will emphasize the relevance of Layered Double Hydroxide-type (LDH) materials on the different forefront aspects in nanoscience and nanotechnology research.Indeed, taking advantage of the versatility in terms of its chemical composition, its exchange ability, and its tunable layer charge and form factor, layered double hydroxide (LDH) type material is considered today as promising and adaptable filler for polymer. Aside the conventional organo-modification of the inorganic platelets by a surfactant to render the filler compatible with the polymer chains, another strategy consists in embarking functionalized tethered agent relevant for the whole and suitable for desired applications.From the lamellar assembly, the guest-host interaction at the nano-scale, and the specific requirement regarding filler dispersion, several examples taken from academic and technological domains will highlight the role of LDH in acting on the Newtonian rheological flow of polymers of great relevance or as functionalized container with UV-absorbing properties, photoactive surfaces for biocide activity, as well as being a specific vessel to possibly release active species resulting in “self-healing” properties as illustrated for the corrosion inhibition for coated metal substrate.


Chang Liu
Chinese Academy of Sciences, China
Title: Controlled synthesis of semiconducting and metallic single-wall carbon nanotube film

Biography: Single-wall carbon nanotubes (SWCNTs) can be either semiconducting or metallic, depending on their diameters and chiral angles. Semiconducting SWCNTs (s-SWCNTs) are ideal channel material for field effect transistors with advantages of high carrier mobility, high current on/off ratio, good stability and excellent flexibility; metallic SWCNTs can be used as interconnectors in circuits and network of transparent conductive films. Usually, as-prepared SWCNT samples are a mixture of s- and m-SWCNTs. To achieve their important application in electronics, it is essential to prepare pure s-/m-SWCNTs. Here we report the direct growth of high-quality, large area s- and m-SWCNT film by a floating catalyst chemical vapor deposition (FCCVD) method and by novel catalyst design. We introduce small amount of oxygen or hydrogen as etchant during the growth of SWCNTs by the FCCVD method. As a result, SWCNTs with higher chemical reactivity are selectively removed, and enriched s- and m-SWCNTs are obtained. We further design and make film collection and transfer equipment, so that large-area s-/m-SWCNT films are obtained continuously. On the other hand, we design and prepared a novel partially carbon-coated cobalt catalyst, which enabled controlled growth of s-SWCNTs with a narrow band gap distribution.

Abstract: Single-wall carbon nanotubes (SWCNTs) can be either semiconducting or metallic, depending on their diameters and chiral angles. Semiconducting SWCNTs (s-SWCNTs) are ideal channel material for field effect transistors with advantages of high carrier mobility, high current on/off ratio, good stability and excellent flexibility; metallic SWCNTs can be used as interconnectors in circuits and network of transparent conductive films. Usually, as-prepared SWCNT samples are a mixture of s- and m-SWCNTs. To achieve their important application in electronics, it is essential to prepare pure s-/m-SWCNTs. Here we report the direct growth of high-quality, large area s- and m-SWCNT film by a floating catalyst chemical vapor deposition (FCCVD) method and by novel catalyst design. We introduce small amount of oxygen or hydrogen as etchant during the growth of SWCNTs by the FCCVD method. As a result, SWCNTs with higher chemical reactivity are selectively removed, and enriched s- and m-SWCNTs are obtained. We further design and make film collection and transfer equipment, so that large-area s-/m-SWCNT films are obtained continuously. On the other hand, we design and prepared a novel partially carbon-coated cobalt catalyst, which enabled controlled growth of s-SWCNTs with a narrow band gap distribution.


Jacob C. Huang
National Sun Yat-Sen University, Kaohsiung, Taiwan
Title: Toughening by nano-scaled gradient interface in amorphous/nanocrystallineZrCu/Cu multilayered films

Biography: Prof. J. C. Huang is the National Chair Professor in Department of Materials andOptoelectronic Science, National Sun Yat-Sen University, Kaohsiung, Taiwan. He received PhD from UCLA, USA, in 1986. He is the Fellow of ASM and MRS-T. His research fields include thin film metallic glasses, nanocrsytallinemetals,nano/micro scaledmechanical behavior.

Abstract: Metallic glass films can be strengthened and toughened by sandwich multilayered structureconsisting of amorphous ZrCu and nanocrystalline Cu. This study examines the mechanical bending response of such multilayeredfilms with sharp or graded interfaces. The interface possesses gradient nature in terms of composition, nanocrystalline phase size and volume fraction. Thebending results extracted from the nano-scaled cantilever bending samples have deomostrated that the multilayered films with graded interfaces would be inherited with much higher interface bending strength/strain/modulus, with an overall upgraded improvement by more than 50%. The simple graded interface design can offer much more promising performance for the structural or funcional applications of multilayered thin films.


Taro Toyoda
The University of Electro-Communications, Japan
Title: Photoinduced electron transfer dynamics of CdSe quantum dots on single crystal rutile-TiO2: Dependence on the crystal orientation of the substrate

Biography: Taro Toyoda is a Project Professor in the Department of Engineering Science, Graduate School of Informatics and Engineering at the University of Electro-Communications. His research focuses on basic studies of optical properties in semiconductor quantum dots including photoexcited carrier dynamics and their applications to photovoltaic solar cells.

Abstract: Semiconductor quantum dots (QDs) have been studied for their light harvesting capability. Despite the potential advantages, a major breakthrough in conversion efficiency of QD-solar cells has yet to be reported [1,2]. The reason is that the fundamental understanding of the surface chemistry of semiconductor QD is lacking [3,4]. For QDs on TiO2, the heterogeneity can be caused by distributions of a number of properties of TiO2 and QDs. Their complecities hinder a detailed understanding of important factors that control the photoinduced electron transfer (PET) rate. It is therefore desirable to investigate the process in well characterized oxide single crystal, where the properties of the oxides can be better controlled. Herein, we report a stydy of PET dynamics of CdSe QDs on single crystal rutile-TiO2 . To characterize the adsorption and growth of CdSe QDs on single crystal rutile-TiO2, we used photoacoustic (PA) spectroscopy for the optical absorption measurements. The AFM images and the optical absorbance measurements showed that the number of CdSe QDs grown on (111) surface was larger than those grown on (110) and (001) surfaces. Photoelectron yield (PY) spectroscopy was applied to characterize the valence band maximum of the TiO2 single crystals.The position of VBM for (111) surface is higher than those for the (110) and (001) surfaces. Transient grating (TG) method was applied to study the PET dynamics. Basucally, TG method depends on the refractive index changes due to photoexcited carriers [5]. In the method, a diffraction grating consisiting of photoinduced charge carriers is utilized for monitoring the carrier dynamics. This meethod is based on pump-probe technique. Pump beam was set at a wavelenght of 520 nm with a pulse width of 150 fs and probe pulse (775 nm) was delayed by an optical delay line (0 - 400 ps). The PET rate constant of CdSe QDs increases with the increase of free-energy change. The change of the PET rate constant on the (111) surface is higher than those on the other surfaces, indicating the difference in crystal binding and the overlap of wave fundtions at the CdSe QDs/rutile-TiO2 interface. Hence, the coupling between the excited state in the CdSe QDs and the Ti 3d orbitals in (111) rutile-TiO2 is stronger than the other crystal orientations ((001) and (110)). We performed density functional theory calculations for the partial density of states (PDOS) in rutile-TiO2 with different crystal orientations. The PDOS of Ti 3d in (111) shows a somewhat localized structure than (001) and (110), indicating the possibility that the PDOS in (111) is higher than the other surfaces, which corresponds to the higher PET rate constant in (111).


Ali E. Aliev
University of Texas at Dallas, USA
Title: Carbon nanotube thermoacoustic projector

Biography: Ali E. Aliev, research professor at Alan MacDiarmid NanoTech Institute, University of Texas at Dallas, has earned his PhD and Doctor of Science degrees at Academy of Sciences of Uzbekistan, USSR at 1984 and 1992, respectively. His scientific interest in transport phenomena in nanoscale. He has been developing thermoacoustic projectors based on freestanding carbon nanotube sheets, graphene sponges and other alternative nanostructure for application in air and underwater.

Abstract: Due to extremely low heat capacitance carbon nanotubes can generate sound pressure over a wide frequency range (1 Hz-140 kHz) by means of thermoacoustics. For freestanding carbon nanotube sheet the sound pressure is a linear function of sound frequency. The smooth continuous spectra without any vibrating parts, nanoscale thickness of sound source, flexibility and opportunity to crate large size projectors attracts a lot of interest to thermoacoustic phenomena. However, at low frequencies, where the need for large area sound projectors is high, the sound pressure level and the sound generation efficiency of open CNT sheets are low. We provide an extensive experimental study of encapsulation of freestanding CNT sheet in inert gases, feeding of thermoacoustic projector using short pulse excitation at different thermodynamic regimes and rationalize our observations within a basic theoretical framework. The acoustical and geometrical parameters providing further increases in efficiency and transduction performance for resonant and non-resonant systems are discussed.


Monica Lira-Cantu
Catalan Institute of Nanoscience and Nanotechnology, Spain
Title: Nanostructured Metal Oxides for Organic and Perovskite Solar Cells

Biography: Monica Lira-Cantu received her PhD in Chemistry (Materials Science) in 1997, from 1999-2001 she worked as permanent research scientist at ExxonMobil Research & Engineering (U.S.A.). Her work in the area of Nanomaterials for Photovoltaic Energyation initiated in 2004 during a scientific stay at DTU in Denmark, where she worked on the long-term stability of polymer/oxide solar cells. She has been visiting scientist at UNorway (2003), at CAST in Japan (2006) and EPFL in Switzerland (2015). She is currently Group Leader of the Nanostructured Materials for Photovoltaic Energy Group at the Catalan Institute of Nanoscience and Nanotechnology (ICN2-CSIC) in Barcelona (Spain).

Abstract: An ideal interlayer for high efficient Organic (OPVs) and Perovskite Solar Cells (PSCs) should meet the following requirements: a) good compatibility with the active layer, b) optical transparency, c) good conductivity, d) good charge transport properties and e) processablility. Transition Metal Oxides (TMOs) have emerged as promising interlayers for OPVs and PSCs. They confer high stability and moisture resistant properties, the appropriate work function, high transparency and are compatible with solution-processable techniques required for the fabrication of OPV and PSCs. Comparison between interlayers made of TMOs and organic semiconductors (i.epoly(3,4-ethylene dioxythiophene):poly(4-styrenesulfonate), PEDOT:PSS) have resulted in devices with similar or enhanced efficiency and superior lifetimes. TMOS have been applied as electron (ETM) and hole transport materials (HTM), mostly as simple binary oxides (i.e. TiO2, ZnO, NiO,CuOx), but complex (i.e. ZnSnO4 , SrTiO3) and doped oxides (i.e. Cu-NiO or Cu-CrOx) are currently breaking ground demonstrating device stabilities of thousands of hours. This lecture will review the state-of-the-arton the application of transition metal oxides in OPVs and PSCs. I will describe the implications of their synthesis at low temperature, their optical properties and the importance of their surface quality and charge transport properties for high efficient devices. A special emphasis will be given to the long-term stability that these oxides confer to solar cells.


Hong Seok Kang
Jeonju University, SOUTH KOREA
Title: Electronic Properties of Two-Dimensional Materials: Inorganic to Oragometallic Materials

Biography:  In 2009, Prof. Hong Seok Kang was awarded Ipjae Physical chemistry Prize for his scientific achievement from the Division of Physical Chemistry, Korean Chemical Society.  In 2016, his department has recorded the 1st place in “the number of SCI citations” among all Materials Science Departments in Korea. (Sep.7~Sep.8, 2016; Joongang Daily News, the 2nd largest newspaper in Korea), where he made a dominant contribution

Abstract: Based on the calculation of electronic structures using density functional theory (DFT), we have investigated the mechanical properties and electronic structures of various one-dimensional (1D) and two-dimensional (2D) organometallic complexes. For 1D systems, our work includes monolayers of metal porphyrin tapes (M-PPT) and ladder-type porphyrin tapes as well as heterobilayers of M-PPT with graphene nanoribbon (GNR). As an example, we show that the bilayer formation of triply-linked Zn-PPT with GNR turns it into a metal, while its doubly-linked (DL) correspondent remains semiconducting. As a 2D organometallic systems, we describe our calculation on π−conjugated metal bis(dithiolene) complex sheets (MC4S4), where M = Ni and Pd. We also summarize our calculations on various 2D inorganic layered materials [1] The first example is arsenic phosphide (AsP), which is an equimolar system of As and P with a structure similar to that of black ( ) phosphorene. [2] The second example is germanium phosphide (GeP) and germanium arsenide (GeAs) in two different phases, i.e., in monoclinic and hexagonal phases. On the one hand, we also describe our calculations on 2D materials in collaboration with an experimental work on various applications in energy-related materials. First, we summarize our recent works on the anode materials in lithium ion batteries such as nitrogen-doped graphite and germanium. [3] Second, we identify the origin of the higher photocurrent in the metal-semiconductor-metal (MSM) photodetector based on GaS nanobelt than that on GaSe nanobelt by comparing the band offsets in the Shottky contacts involving the two kinds of semiconductors.[4] Finally, we describe our very recent progress on the photocatalyzed watter splitting based on a 2D photocathode.


Maher S. Amer
Wright State University, USA
Title: Gigantic Challenges, Nano-Solutions

Biography: Dr. Amer is Professor of Materials Science and Engineering, a von Humboldt Fellow, Max Planck Society, Germany, and a former Visiting Fellow of the Fitzwilliam College, University of Cambridge, England. Dr. Amer is a member of a number of national and international committees focused on nanomanufacturing and higher education accreditation. He received his Ph.D. from Drexel University 1995.

Abstract: As we are rapidly approaching year 2050 and the population capacity of planet Earth, it becomes a must to, sooner better than later, face our gigantic challenges. It is widely known that our global stability is seriously threatened by the consequences of our depleting energy and clean water resources. Extensive scientific research over the past 15 years has shown that Nano-technology-based solutions hold promising answers to our pressing needs. However, It is very important to understand the thermodynamic fundamentals governing the structure and performance of such thermodynamic small systems especially their ability to selectively interact with certain chemical moieties and with electromagnetic radiation. Understanding such fundamentals will definitely lead to unique solutions for our pressing challenges. Nanostructured films and membranes engineered to selectively adsorb unwanted chemical, and biological species can provide a valuable solution for water treatment, desalination, and can definitely contribute to the world’s water and environmental challenge. In addition, photovoltaics batteries based on nanostructured fullerene films are also a very promising rout to explore when addressing energy challenges. In this talk, we will discuss both experimental and molecular simulation fundamental work, done in our research group, as related to Energy and water challenges.


Julia Pérez-Prieto
University of Valencia, Spain
Title: Strategies to prepare highly luminescent organolead bromide nanoparticle colloids

Biography: Dra Pérez-Prieto is Full Professor of Organic Chemistry and the leader of the “Photochemistry Reactivity Group” at the Instituto de Ciencia Molecular at the Universitat de Valencia. She has recently elected as the President of the European Photochemistry Association. Prof Pérez-Prieto has authored over 150 papers in the field of photochemistry, chemical reactivity, and nanomaterials. Currently her group works with semiconducting nanoparticles (organolead halide perovskites), metal NPs (plasmonic AuNPs and gold nanoclusteres), and upconversion NPs (NaYF4:RE; RE: rear earth). We have gained experience in the preparation of functional nanosystems based on these types of nanoparticles and now pursue to prepare more complex structures (multifunctional systems) based either on these materials or new type of photoactive NPs.

Abstract: Hybrid organolead halide perovskites contain an anionic metal–halogen-semiconducting framework and charge-compensating organic cations. [1] Their stoichiometry is associated with the dimensionality of their inorganic framework, going from 0D to 3D. [2] Organolead halide perovskites combine useful properties of both organic and inorganic materials, such as plastic mechanical properties (organic material) and good electronic mobility (inorganic material).These hybrid organic-inorganic perovskites are of great interest in photovoltaic devices and as luminescent materials for light-emitting devices. Their photoluminescence spectrum can be modified via controlled changes on their stoichiometry. There are quite a few studies exploring the performance of these perovskites, in particular of those with the CH3NH3PbX3 (X= halide) stoichiometry, with respect to their optical gain, quantum yield, or as components of optical devises, among other features. In spite of that, there is a demand for enhancing their emissive properties to be used in efficient luminescent devices. In addition, there are concerns on their stability and degradation which affect their performance. We have reported the first example of colloidal lead bromide perovskite nanoparticles (ca. 6 nm) with a 3D inorganic framework (CH3NH3PbBr3) and good luminescent properties (F = 20%), by making use of long-alkyl ammonium salts, oleic acid, and octadecene to control the growth of the nanoparticles as well as their dispersibility in low polar solvents [3]. Such colloidal dispersions were used to prepare thin homogeneous films and to construct electroluminescent devices with a better response than the bulk material. Fine-tuning of the molar ratio between the precursors made it possible to improve their luminescence (F ca. 83%) and photostability [4]. Recently, we have found that these nanoparticles can be prepared with an extraordinary F (ca. 100%), high photostability, and enhanced stability in water by using a relatively, conformationally rigid, alkyl ammonium bromide [5]. Additionally, we have combined organolead halide perovskite with near-infrared absorbing nanoparticles, in particular upconversion nanoparticles, to make new nanohybrids with novel properties. [6]


Christine Dufès
University of Strathclyde, United Kingdom
Title: Tumour regression after intravenous administration of novel tumour-targeted nanomedicines

Biography: Dr Christine Dufès is a Senior Lecturer at the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), University of Strathclyde, Glasgow, United Kingdom. Her research interests include the targeted delivery of drugs and therapeutic genes to tumours and cerebral diseases. She has been awarded the Biochemical Journal Young Investigator Award (2009) and the Tom Gibson Memorial Award (2012) for her research, in addition to the Best Overall Strathclyde Teaching Excellence Award 2013 for her teaching. She sits on the editorial boards for 17 journals.

Abstract: The possibility of using genes as medicines to treat cancer is limited by the lack of safe and efficacious delivery systems able to deliver therapeutic genes selectively to tumours by intravenous administration, without secondary effects to healthy tissues. In order to remediate to this problem, we investigated if the conjugation of the generation 3 diaminobutyric polypropylenimine dendrimer to transferrin and lactoferrin, whose receptors are overexpressed on numerous cancers, could result in a selective gene delivery to tumours after intravenous administration, leading to an increased therapeutic efficacy. The intravenous administration of transferrin-bearing and lactoferrin-bearing polypropylenimine dendriplexes resulted in gene expression mainly in the tumours. Consequently, the intravenous administration of the transferrin-bearing delivery system complexed to a therapeutic DNA encoding tumour necrosis factor (TNF)α led to 90% tumour suppression over one month on A431 epidermoid tumours. It also resulted in tumour suppression for 60% of PC-3 and 50% of DU145 prostate tumours. Furthermore, the intravenous administration of the lactoferrin-bearing targeted dendriplexes encoding TNFα led to the complete suppression of 60% of A431 tumours and up to 50% of B16-F10 skin tumours over one month. Transferrin- and lactoferrin-bearing polypropylenimine dendrimers are therefore highly promising delivery systems for cancer therapy.


Shengfu Yang
University of Leicester, UK
Title: Challenging the bulk limit: Formation of high-moment nanoparticles in superfluid helium

Biography: Dr Shengfu Yang is a Professor of Physical Chemistry and NanoChemistry at the University of Leicester. He has worked in several world-class laboratories in China (University of Science and Technology of China), France (Université Joseph Fourier, Grenoble), United States (Massachusetts Institute of Technology) and Finland (University of Helsinki). His current research focuses on superfluid helium droplets, covering both Physical Chemistry and NanoChemistry. He has pioneered novel nanoscience in superfluid helium, and is one of the international leaders in the fabrication of novel nanomaterials using superfluid helium droplets as the growth medium.

Abstract: Magnetic nanomaterials have many potential applications in catalysis, biomedical imaging, drug delivery and treatment, and data storage[1-4]. In addition, they might serve as building blocks for the fabrication of new and more powerful magnets [5] that might in turn provide important new benefits in devices such as motors, power generators, loudspeakers and cell phones. One of the key properties of magnetic nanomaterials is the magnetic moment which, for example, affects the specific absorption rate (SAR) in hyperthermia treatment of cancer [6] and the T2 contrast in magnetic resonance imaging (MRI) [2,7]. However, so far most nanoparticles produced possess a lower magnetization than the corresponding bulk value and it remains a formidable task to fabricate high-moment magnetic nanoparticles. Here we report, for the first time, nanoparticles with magnetic moments far beyond the bulk limit. This is achieved by use of superfluid helium droplets as the growth medium, where the exchange interaction between metal atoms drives the growth of nanoparticles. For chromium nanoparticles, the exchange interactions have resulted in disorders at atomic scale, allowing the spins in the sub-lattice to turn subject to an external magnetic field [8]. At room temperature, the magnetic moment is as high as 0.30 μB/atom. For Ni/Au core-shell nanoparticles, the magnetic moment is 2.16 μB/atom at 300 K, which is 3.5 times larger than the bulk limit of nickel (0.6 μB/atom). At 5 K, the magnetic moment is as high as 4.3 μB/atom, which is close to the atomic limit (5 μB for nickel atom). Our observation is unprecedented, representing a major breakthrough in fundamental nanomagnetics and nanotechnology.


Jang-Ung Park
Ulsan National Institute of Science and Technology, Republic of Korea
Title: Wireless sensors with transparent and stretchable nanostructures

Biography: Jang-Ung Park achieved his Ph.D. from University of Illinois at Urbana-Champaign (UIUC) in 2009. After that, he went on to work as Postdoctoral Fellow at Harvard University. He is now an Associate Professor in School of Materials Science and Engineering at UNIST. His current research is focused on nanomaterials synthesis and wearable electronics.

Abstract: Healthcare applications of wearable and smart sensors which can monitor human health conditions noninvasively with function of wireless transmission have attracted substantial interests due to the capability of direct detection of biomarkers contained in body fluids. However, the transparent and stretchable sensors integrated on the biomaterials are not yet been realized. In this talk, we presented a multifunctional sensor for human disease diagnosis based on a RLC circuit, where R (resistance) responds to molecular binding of biomarkers in the body fluid while L (inductive) and C (capacitance) change in accordance with structural changes of capacitance materials induced by varying pressure. This device based on hybrid nanostructures using two-dimensional graphene and one-dimensional metal nanowire exhibited high transparency, superb stretchability, and hence enabled the device to be fittable on biomaterials with wireless sensing capability. Furthermore, in-vivo and ex-vivo tests demonstrated its reliable operation. The advance of these electronics using hybrid structures provides a route towards future electronics.


Olga E. Glukhova
Saratov State University, Russia
Title: New 2D/3D nanocomposites based on graphene and graphene flakes as a platform for photovoltaic and electronic nanodevices

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

Abstract: Today two groups of graphene nanocomposites are the most promising: 1) 2D hybrid films – the tubes are located between adjacent layers, parallel to them and are linked with them by covalent bonds and /or by van der Waals bonds. The structures with parallel arrangement of CNT relative to each other, chess and chaotic are commonly distinguished [1]; 2) 3D-composite - a mixture of graphene flakes or graphene foam with nanotubes located between the plates or in the pores of the foam [2,3]. The main purpose of the graphene nanocomposites synthesis is the search of multifunctional nanocomposite for the solving of urgent problems of micro- and nano-electronics and also photovoltaics. To achieve this purpose we have simulated the process of synthesis of 2D hybrid films with CNTs between two / three monolayers of graphene and 3D-composite of graphene flakes and fullerene fragments (a type of glass-like carbon) by means of SCC DFTB, NEGF methods and molecular dynamics [4]. We have predicted the most stable topological models of 2D hybrid CNT-graphene films, 3D-composite of fragments of graphene and fullerene structures. Effective ways for reducing the work function of glass-like carbon with the prospect of creating the matrix cathodes based on them were revealed for the first time. For the first time we have established the topological model of 2D hybrid films, allowing us to control their absorptive and reflective properties in the UV range, which makes them promising as optical nanoantenna, materials in the stealth technology and new solar cell elements.


Vladimir M. Fomin
Institute for Integrative Nanosciences, Germany
Title: Topology-driven effects in advanced nanoarchitectures

Biography: Vladimir M. Fomin, Dr. habil., Univ. Prof., research professor at the Institute for Integrative Nanosciences (IIN), Leibniz Institute for Solid State and Materials Research (IFW) Dresden.Diploma of a Scientific Discovery (Academy of Natural Sciences of Russia). Honorary Member of the Academy of Sciences of Moldova. Interests in nanophysics and materials engineering, in particular,topological effects in quantum ringsand strain-induced micro- and nano-architectures, optical properties of quantum dots, vortex matter in meso-, nanoscopic and patterned superconductors;phonons in multishell tubular nanostructures;thermoelectric properties of semiconductor nanostructures. 3 monographs, 3 textbooks, 10 review papers, 10 patents and 200 scientific articles.

Abstract: Analysis of topologically nontrivial manifolds at the nanoscale is of immense importance for semiconductor, superconductor and graphene physics as well as for electronics, magnetism, optics, optoelectronics, thermoelectricsand quantum computing. Advances of high-tech nanostructure fabrication techniques have allowed for generating topologically nontrivial manifolds at the nanoscale with man-made space metrics, which determine electronic, optical, magnetic and transport properties of such objects and novel potentialities of nanodevices due to their unique topology. The physics of quantum rings is overviewed from basic concepts rooted inthe quantum-mechanical paradigm—via unprecedented challenges brilliantly overcomeby both theory and experiment—to promising application perspectives [1]. Self-assembled quantum volcanos, which are singly connected, surprisingly exhibit the Aharonov-Bohm behavior in experiment. This is explained by the fact that the electron wave functions in a quantum volcano are topologically identical to the electron wave functions in a quantum ring. Symbiosis of the geometric potential and an inhomogeneous twist renders an observation of the topology effect on the electron ground-state energy in microscale Möbius strips into the realm of experimental verification. A delocalization-to-localization transition for the electron ground state is unveiled in inhomogeneous Möbius strips [2]. Efficient engineering of the acoustic phonon energy spectrum is possible in multishell tubular structures produced by a roll-up method of self-organization of micro- and nano-architectures. It is shown that the number of shells in those structures is an important control parameter of the phonon dispersion along with the structure dimensions and acoustic impedance mismatch between the layers [3]. The obtained results suggest that rolled up nano-architectures are promising for thermoelectric applications owing to a possibility of significant reduction of the thermal conductivity without degradation of the electronic transport. The cone-like rolled-up asymmetric microcavities provide a platform to realize spin–orbit coupling of light for the examination of non-trivial topological effects in the context of a non-Abelian evolution [4].In asymmentric microcavities, the geometric phase is directly measured bymonitoring the polarization tilt angles, while theeccentricities indicate the mode conversion between the rightand left circular bases. Those findings imply promising applications by manipulating photons in on-chip quantum devices.


Synthesis of nanostructured NiO by hydrothermal route for H2S gas sensor
KTHM College, India
Title: Gotan Hiralal Jain

Biography: Dr. Gotan Hiralal Jain is the Principal at S.N.J.B.’s K.K.H.A. Arts, S.M.G.L. Commerce and S. P. H. J. Science College, Chandwad, India. He completed his Ph.D. on Gas Sensors in 2007. His areas of research are thin and thick films gas sensors, synthesis of nanomaterials by various techniques for gas sensor applications. He has delivered talks at various National and International conferences, few of them are: ICST-2007, Massey University, New Zealand, MS&T-2008, Pittsburgh, USA, EUOROMAT-2009, Glasgow, Scotland, UK, MINM-2010, CMRD Institute, Cairo, Egypt, ICST-2011, Palmerston North, New Zealand and ICPAC-2012, Mauritius, Trinity College, Dublin and Stoney Brooke University, Long Island, USA-2015. He also presented research papers at MRS-2013, Adis Ababa, Ethiopia and at University of Nigeria, Nsuka. His talk has been appreciated in ICST-2010 and ICST-2011 New Zealand and Italy respectively. He has published around 70 papers in peer-reviewed international journals, won 5 awards for oral/poster presentations in various national/international symposia. His two reference books are published by Lambert Publishing House, Germany. He has contributed chapters in book series published by Springer-Verlag. Eight students are working under his supervision for Ph.D. degree, six awarded Ph.D. degree, and for six he is working as a Co-guide. He is a reviewer for various international referred journals of Elsevier and Springer. He is working as an Associate Editor for IEEE,s Sensor journal.He is honored by University of Pune as a ‘BEST Teacher’ for his contribution in research. He is nominated for BHASKAR RAI award, given by Indian Physics Teachers Association. Recently he is awarded as an ‘Ideal Teacher’ in the University of Pune region by the Government of Maharashtra with the hands of Governor of state.

Abstract: A hydrothermal process was used for the synthesis of nanostructured NiO with and without capping reagent (surfactant). All reagents were purchased from Sigma-Aldrich and used as received. First, 0.1 M of the Nickel Chloride (NiCl2) a precursor of Nickel was dissolved in 20 mL of deionised water-ethanol (1:1 volume ratio), a 5 M NaOH solution was prepared in deionised water for maintaining pH of the reaction, a 0.2 M Thioglycerol, a capping reagent, solution was prepared in isopropyl alcohol with constant stirring to make clear solution. Then these prepared homogeneous solutions (25 ml each with surfactant and without surfactant) were transferred in 50 ml capacity autoclaves with Teflon liner by uniform heating at 200 oC for 15 h. These reaction mixtures were heated at a rate of 5 oC min−1. After completion of the reaction, it was cooled to room-temperature and powdered samples were collected by centrifugation. Powdered sample was thoroughly washed with deionised water and ethanol. Samples were dried at 80 oC for 12 h. The materials were characterized by XRD, UV, SEM and TEM techniques. The thick films of these materials were prepared by screen printing and proposed for gas sensor applications. The gas sensing performance of NiO thick films (with and without surfactant) was tested to H2S, LPG, H2, NH3, Ethanol, CO, CO2, and O2, at the operating temperature ranging from 100 oC to 450 oC, they showed maximum response to H2S for 10 ppm gas concentration. Which could be the gas sensor operated at relatively low temperature and concentration.


Mehrnoosh Atashfaraz
National Iranian Oil Refining and Distribution Company, Iran
Title: Supercritical hydrothermal synthesis of amino-acid-displaying water-dispersible In2O3 nanocrystal and their optical properties

Biography: Mehrnoosh Atashfaraz has completed her PhD at the age of 29 years from Tehran University and postdoctoral studies from Tohoku University School of Engineering. She is researcher, oil and gas expert in National Iranian Oil Refining an Distribution Company. She has published several papers in reputed journals.

Abstract: Indium oxide (In2O3) nanoparticles were successfully synthesized via simple rapid hydrothermal method at 400 and 450 °C under pressures of 25 and 30 MPa within 10 min. It was found that the highest temperature (450 °C) and lowest pressure (25 MPa) condition was preferable to obtain pure cubic crystals of In2O3, because of the higher dehydration rate at 450 °C and lower water concentration at low pressure (25 MPa). Moreover, we succeeded in the synthesis of hydrophilic amino-acid-modified In2O3 nanoparticles by the same method at 450 °C and 25 MPa within 10 min. 5-Aminovaleric acid was used as the modifier. Changes in the surface properties of the nanoparticles by surface modification were observed by Fourier transform infrared spectroscopy, thermogravimetric analysis, zeta potential, and transmission electron microscopy (TEM), which demonstrated that the reagent chemically bound onto the surface of the In2O3 nanoparticles. The TEM images show that the morphology and size of the surface-modified nanoparticles were spherical with a diameter of 31 nm, respectively. The surface-modified nanoparticles were water dispersible; their isoelectric point shifted to a low pH range because of the nature of the carboxyl group contained in the structure. The synthesized unmodified and surface-modified In2O3 nanoparticles show a unique, wide-range blue-red light emission after excitation at 300 nm at room temperature. These results suggest that In2O3 nanoparticles could have significant potential for applications in optoelectronic devices


S. D. Shinde
S.M.G.L. Commerce and S.P.H.J. Science College, India
Title: Hydrothermally synthesized nano TiO2 thick films for gas sensing supplication

Biography:

Abstract: TiO2 nanoparticals were prepared by hydrothermal synthesis technique. The thick films of TiO2 were prepared by screen printing technique; gas sensing performance of this film was tested for various gases. The film showed highest response and selectivity to H2S gas. The gas response selectivity of film were measured and presented. The films were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Selected Area diffraction and optical absorption spectroscopy technique. The quick response and fast recovery are the main features of these films. The effect of temperature on the optical, structural, morphological and gas sensing properties of the films were studied and discussed.


Stoinova Anastasia
RUDN University, Russia
Title: Kinetics of silver and gold nanoparticles in mono- and binary hydrosols with sonication

Biography: 25 y.o. PhD student from Russia (RUDN University) 2010 – 2015. Specialist of biotechnology, engeneer Moscow State University of Food Production Сultivation of nutrient yeast on molasses vinasse, Food additives, Stratographic analysis, Microbial analysis 2015 – present. PHD student and assistant of Institute of biochemical technology and nanotechnology of RUDN (People Frandship University of Russia)

Abstract: This research describes the kinetics of formation of gold and silver nanoparticles in mono- and binary hydrosols, using spectroscopic methods of investigation, determined the amount of silver nanoparticles on the basis of the method of cross-correlation spectroscopy of photons and the effect of ultrasound on the spectroscopic data hydrosols of gold and silver. Was used one of the modern device that allows to measure the size of the particles in a fluid- the NANOPHOX (Sympatec, Germany) based on photon cross correlation Spectroscopy (PCCS). This method allows the simultaneous measurement of particle size and aggregate stability of opaque suspension or emulsions of nanoparticles in the range from 1 nm up to several micrometers. In the framework of the present study the size distributions for particles of silver and gold ) was experimentally researched. Analysis of the correlation function allows us to make conclusion about the size distribution in the sols. Showing TEM results that confirm Nanophox data.


Norlida Kamarulzaman
Universiti Teknologi MARA, Malaysia
Title: Anomalies in band gaps of metal oxides

Biography: Professor Norlida Kamarulzaman is a physicist and an academic staff of Universiti Tecknologi MARA. She did her Ph.D at the University of Malaya in the area of Advanced Materials. Her research interests include advanced and nanostructured metal oxides, Li-ion battery materials, characterization methods (TG/DSC, XRD, XPS, SEM and TEM), device fabrication and testing. Her publications include work on fundamental studies of band gaps of metal oxides and doped metal oxides and Li-ion battery materials. She is also interested in synchrotron and neutron techniques to further characterize nanostructures where laboratory equipment have reached their limitations.

Abstract: Nanomaterials are very interesting due to their characteristics that are different from the bulk. Band gap is one of the important material characteristics of nanomaterials because it has an important effect on their applications. Previously, it has been thought that band gaps are constant values and characteristic only to the type of compound. However, this proves different for nanostructured materials. Depending on the particular type of metal oxide, some exhibit band gap narrowing while others exhibit band gap widening. The phenomenon of band gap widening and narrowing in nanomaterials have not been very well-understood by scientists and is an on-going work. This presentation includes the careful synthesis and preparation of the nanostructured materials and analysis of their properties to better understand the observed phenomenon of band gap change in nanostructured metal oxides. Properties such as crystal structural parameters, particle size, morphology and spectroscopic studies were done. It was found that the physical dimensions of the crystallites, their crystal structure parameters, binding energy as well as bonding are important contributing factors to band gap change. Experimental results enabled us to identify possible mechanisms of band gap change of the metal oxide nanostructures.


Vishwas B.Gaikwad
Savitribai Phule Pune University, India
Title: Photo degradation of Methylene Blue dye on Mechanochemical synthesized Nanocystalline Lead Titanate and their Toxicity study

Biography:

Abstract: Lead titanate particles in the nanometer size regime have been successfully synthesized by mechanochemical method using green chemistry approach. The structural and micro structural properties of PbTiO3 material was characterized by various investigative techniques like FT-IR, UV-DRS, XRD, SEM, TGA and Electrical Conductivity. The particle size of PbTiO3 was found to be 64 nm by XRD. Electrical properties show semiconducting nature of synthesized lead titanate. The thick films of the material were prepared by screen printing method. The synthesized material was used for photodegradation of methylene blue dye with respect to various dye concentrations and catalyst amount under sunlight. Degradation product analysis was done using the LC–MS technique and the results shows that the dye degradation. The degraded product tested for the phytotoxicity and show good results. Nanocrystalline PbTiO3 photocatalysts was found to be non toxic to the environment.


Mohammad Al-Harahsheh
Jordan University of Science and Technology,Jordan
Title: PEI functionalized carbon coated magnetic nanoparticle for uranium extraction from aqueous solutions

Biography: Mohammad Al-Harahsheh is a full professor at the department of Chemical Engineering / Jordan University of Science and Technology (JUST). He obtained his PhD in Extractive Metallurgy from the University of Nottingham/UK in 2005. He has published more than 40 scientific papers in highly reputable journals. He has a SCOPUS H Index of 14. His main research interests are: Application of Nano technology in metal extraction, solid waste recycling and waste utilization, industrial waste water treatment, and microwave assisted extraction of metals. Currently he is the vice dean of Scientific research at JUST.

Abstract: Adsorption techniques have been found to be superior for water treatment due to their simplicity of design, selectivity, low cost, flexibility, ease of operation, efficient technology, and wider applicability for removal various types of pollutants. Natural sorbents under ambient conditions exhibit either low adsorption capacity or weak affinity for sorbate. The use of chemical modification to produce nanocomposite material increase their adsorption capacity and selectivity toward heavy metal ions, which have functional groups such as amine, amide, carbonyl, amidoxime, chitosan etc. Adsorbents with nanoscale have better efficiency in removing contaminants from wastewater, due to their high surface to volume ratio and better dispersion in aqueous solutions. Further research is needed to improve firstly capacity, selectivity, and kinetics, secondly, the adsorbent reusability for multicycle use, and finally, the ease of separating NP from water after desorption process. In this work carbon coated magnetic iron oxide nanoparticles (CCMNPs) functionalized with polyethyleneimine (PEI) weresuccessfully prepared. The prepared nanocomposite was characterized by XRD, SEM, FT-IR, TGA and VSM techniques. Furthermore, the stability of the prepared CCMNPs was tested in both acidic and basic media showing very high stability. CCMNPswere used for separation of U (VI) from aqueous solutions. Several process parameters were tested to investigate the removal efficiency, adsorption capacity and reusability of the CCMNPs including, pH, initial concentration, of U (VI), temperature, desorption and activation media. The concentration of U was determined by ICP-MS. The PEI functionalized CCMNPs composite was found to have excellent affinity toward U (VI) over a wide range of pH. The experimental uptakecapacity of the prepared nano composite was found to be more than 120 mg (U (VI))/ g (composite), while the one calculated according to Langmuir model was found to be 113mg (U (VI))/ g with a correlation coefficient of 0.995.


Roberta Tatti
Institute of Materials for Electronics and Magnetism, National Research Council, Italy
Title: Synthesis and characterization of a novel hybrid nanomaterial for X-ray induced singlet oxygen generation

Biography: Roberta Tatti is a postdoctoral fellow at the Institute of Materials for Electronics and Magnetism - National Research Council in Trento (Italy). She received her PhD degree in Science and Technology of Innovative Materials at the University of Parma (Italy). She is currently working on the functionalization of inorganic materials for the development of new photosensitizers for photodynamic therapy induced by X-rays and infrared photons.

Abstract: In the last decades a great attention has been paid to the development and synthesis of new nanomaterials, which can find multiple applications, e.g. in biomedicine, electronics, and optics. In particular, the modification of inorganic surfaces with organic or bio-molecules represents the route to activate processes at the interface, giving rise to a greatly versatile class of materials with peculiar chemical and physical properties [1]. In this work, we present a novel hybrid nanomaterial for the singlet oxygen generation, constituted by an inorganic X-ray nanoscintillator and an organic photosensitizer. More specifically, SiC/SiO2 core/shell nanowires (NWs), grown by a carbothermal method [2], were functionalized with a supersonic molecular beam of porphyrin derivative, giving rise to a nanomaterial proven to be suitable for applications in X-ray induced Photodynamic Therapy (PDT). The characterization of the hybrid nanomaterial by surface spectroscopies and electron microscopy demonstrates the stability of the linkage between the porphyrin and NWs. Moreover, optical analysis showed that the luminescence of the photosensitizer is enhanced by the presence of NWs, suggesting an efficient energy transfer from the inorganic to the organic material. The enhanced efficiency of the functionalized nanomaterial in generating singlet oxygen was evaluated after X-ray irradiation in a clinical linear accelerator by using the singlet oxygen sensor green (SOSG) kit. In this study we focused our attention in understanding the molecule-substrate interactions. The findings provide an insight in developing an effective route to molecular functionalization of SiC/SiOx core/shell nanowires.


Jamal Hassan
Khalifa University, UAE
Title: New information on dynamics of water inside carbon nanotubes revealed by Nuclear Magnetic Resonance spectroscopy

Biography: Jamal Hassan is an assistant professor of Physics in Department of Applied Math and Sciences at Khalifa University. He obtained the PhD degree in NMR from the University of Waterloo, Ontario, Canada in 2007. Dr. Hassan’s research interest is studying water dynamics and behavior in nano-confinements. He uses different NMR techniques to study water behavior inside hydrophioc (silica-based) and hydrophobic (carbon-based) materials.

Abstract: Fluid flow in nanotubular channels is an emerging field with fascinating applications ranging from ultrafiltration and osmotic energy conversion to nanosyringes and biological separation. Key challenge in all these technologies is to acquire the flow profile at the nanoscale. Until now the only feasible method to accomplish this issue has been Molecular Dynamics (MD) simulations. Here, by using two-dimensional Nuclear Magnetic Resonance diffusion – relaxation (D-T2) spectroscopy, we succeeded to distinguish nanotube water from interstitial and bulk water and acquire the diffusion profile of water in single and double walled carbon nanotubes (CNTs) at nanoscale resolution. In single walled CNTs, D-T2 spectra display the characteristic shape of uniform water diffusion in one dimension with D-value comparable to that of bulk water. Most important, in double-walled CNTs water diffusion reveals a second axial component with remarkably high D values, clear indication of the repulsive character of water intermolecular forces when limited in ultra-narrow hydrophobic channels. This kind of “experimental MD” is an excellent tool for analyzing nanofluidic properties even in channels with diameter approaching the size of the guest molecules.


Fawzi Banat
The Petroleum Institute, United Arab Emirates
Title: Biosynthesis of Iron Oxide Nanoparticles using Aqueous Neem Extracts and Its Application

Biography: Fawzi Banat is a Professor & Chair of Chemical Engineering Department at the Petroleum Institute. After obtaining his chemical engineering doctorate at McGill University, Canada, in 1995, he taught at several universities before joining the PI in 2011. He has published over 120 papers in reputed journals and served in many scientific committees.

Abstract: Metallic nanoparticles have taken immense attention due to their vast applications include bio-sensing, catalysis, environmental remediation [1,2] etc. Chemical and physical methods are well known to produce metallic nanoparticles [3]. However, methods of preparation require toxic reagents, organic solvents, or non-biodegradable agents causing the environment to be potentially dangerous. The biosynthesis of nanoparticles using micro-organisms [4] and plant extracts [5] have been proposed environment friendly methods. The laboratory scale synthesis of colloidal metallic nano particles using plant extracts have been studied for long. But cost-effective, rapid synthesis of bulk metallic nanoparticles has not been explained earlier. The biosynthesis of iron oxides using plant extracts has been well known and reported using coffee and green tea extracts [6]. In this study, we reported the biosynthesis of iron oxide nanoparticles via two-step. Neem leafs contain high amounts of different phenolic compounds. These compounds are extracted using soxhlet apparatus to get concentrated phenolic compounds as green pigments. Secondly, the concentrated pigments reduced ferric ions at room temperature to produce iron oxide nanoparticles. Specially, neem leafs with high levels of freely extractable phenolic compounds are potentially more cost-effective and advantageous than the use of coffee and tea for bulk synthesis of iron oxide nanoparticles. The reduction using aqueous neem leaf extracts for ferric ions is rapid and results stable iron oxide particles. Thus, obtained iron oxide particles were characterized using SEM, EDX and XRD analysis for measuring morphological structures, elements present and crystalline behavior. The catalytic activity of the synthesized iron oxide nanoparticles was observed in the degradation of organic contaminants as methylene blue (MB) dye. MB is a useful molecule for free radical oxidation and its concentration dependency is easily monitored using UV-vis spectroscopy. The results suggested that iron oxide nanoparticles synthesized using aqueous neem leaf extracts are potentially useful for degradation of organic pollutants.


A.B.M. Sharif hossain
University of Hail, KSA
Title: Nano-cellulose derived biomaterial using leaves biomass: An innovative biodegradable bio-plastic

Biography: Dr. ABM Sharif Hossain obtained his PhD in Biotechnology, Ehime University, Japan. Dr. Hossain is holding a position as an Associate Professor, Biotechnology Program, Biology Department, Faculty of Science, University of Hail, Hail, KSA. Dr. Hossain is expertise in Bio-Nanotechnology like nanomaterial production using biological sources and genetic engineering. Dr. Hossain has total of 133 Publication including Journal, book, book chapter, book monograph. He has total of 52 Conference abstract and proceeding. He got h-index: 15 and total citation: 1033. Dr. Hossain supervised PhD: 4 (UM, Malaysia), MSc: 10, Undergraduate : 30 (university of Malaya, Kuala Lumpur and Hail University) He has completed 17 research projects as Principal Investigator and Researcher. He is an Editorial member of 5 Journals. In addition he is an External Examiner for PhD and MSc Thesis of 5 Universities.

Abstract: The bio-plastic derived from biopolymer biomaterial is suitable to wrap or contain dry cosmetics, medical, biomedical, bioengineering and sanitary products. Bio-plastic-like biopolymer biomaterials can be edible and naturally organic and degradable. This study has been highlighted as one of the strategy producing biomass based nano-bioplastic biomaterials to solve dependency on petroleum and environment pollution because of non-degradable plastic. The study was conducted to investigate nano-biopolymer based definite biomedical materials from corn, banana and date palm leaf biomass without mixture of chemicals. Leaves biomasses were used to produce edible nano-bioplastic biomaterials like bio-nanofilm, bio-nonoglove, bio-nanocoating, bio-nanoscrew for bone joint, bio-nanobumper, bio-nanosolvent etc. for medical, biomedical, pharmaceutical, bioengineering and other industrial uses. Moreover, different kinds of test like absorption, odor, tensile, fitness, firmness, energy, dying and chemical have been investigated. From the results, it was observed that organic based nano-bioplastic biomaterial was better than synthetic based plastic materials depending upon its different properties identified by ASTM (American standard for testing and materials) standard. Therefore, it can be concluded that both organic (cellulose and starch) based edible nano-bioplastic can be used for biomaterial as biomedical, medical and laboratory components in the pharmaceutical industries.


Sweety Sarma
University of South Africa, South Africa
Title: Possible conduction mechanisms in undoped and doped PVA/CdS devices exhibiting extended memristive, memcapacitive and meminductive characteristics

Biography: Dr. Sweety Sarma is currently associated with Department of Physics, University of South Africa and NRF South Africa. She completed her PhD in Electronics and Communication Technology from Gauhati University, Assam, India. Her area of research work focuses on resistive switching characteristics of chalcogenide nanomaterials and on 2D materials. She has also worked on optoelectronics devices.

Abstract: Two terminal devices were fabricated with thin film of as-prepared PVA/CdS samples as the active layer. Preliminary investigations viz., X-ray diffraction (XRD), Uv-visible spectroscopy (UV-vis), High Resolution Scanning Electron Microscopy (HRSEM),High Resolution Transmission Electron Microscopy (HRTEM) and Fourier Transmission Infra Red spectroscopy (FTIR) were done to confirm structure and composition of the thin film. Resistive switching behavior was observed exhibiting extended memelement like characteristics. Generally , conduction mechanism in materials exhibiting resistive switching characteristics depends on the material used and selection of electrodes. Poole-Frenkel emission, Schottky emission, space-charge-limited conduction (SCLC), trap-assisted tunneling (TAT) and hopping conduction are some of the commonly observed reasons. An investigation was carried out to analyse the possible conduction mechanisms in undoped and doped PVA/CdSnanodevice, exhibiting extended memeristive, memcapacitive and meminductive behavior.


Farhana Akter
UCL Centre for Nanotechnology and Regenerative Medicine, UK
Title: Nitric oxide in paediatric respiratory disorders: novel interventions to address associated vascular phenomena

Biography:

Abstract: Nitric oxide (NO) has a significant role in modulating the respiratory system and is being exploited therapeutically. Neonatal respiratory failure can affect around 2% of all live births and is responsible for over one third of all neonatal mortality. Current treatment method with inhaled NO (iNO) has demonstrated great benefits to patients with persistent pulmonary hypertension, bronchopulmonary dysplasia and neonatal respiratory distress syndrome. However, it is not without its drawbacks, which include the need for patients to be attached to mechanical ventilators. Notably, there is also a lack of identification of subgroups amongst abovementioned patients, and homogeneity in powered studies associated with iNO, which is one of the limitations. There are significant developments in drug delivery methods and there is a need to look at alternative or supplementary methods of NO delivery that could reduce current concerns. The addition of NO-independent activators and stimulators, or drugs such as prostaglandins to work in synergy with NO donors might be beneficial. It is of interest to consider such delivery methods within the respiratory system, where controlled release of NO can be introduced whilst minimizing the production of harmful byproducts. We will discuss the current therapeutic application of iNO and the state-of-the-art technology methods for sustained delivery of NO that may be adapted and developed to address respiratory disorders.


Marco Sanna Angotzi
Università di Cagliari, Italy
Title: Design and characterization of bimagnetic spinel ferrite core-shell nanoparticles

Biography: Marco Sanna Angotzi graduated in Chemical Science in 2015 at the University of Cagliari with highest mark presenting the thesis “Synthesis and characterization of spinel ferrite nanocrystals with core-shell architecture”, developed at the Charles University of Prague under the supervision of Prof. Daniel Niznansky. From October 2015, he is a PhD student in Chemical Sciences and Technologies working on the design of hetero-architectures based on spinel ferrite nanoparticles, under the supervision of Prof. Anna Musinu and Prof. Carla Cannas. In 2016 he served an internship on “Chemical mapping at atomic level” at Brookhaven National Laboratory, New York, under the supervision of Prof. Huolin Xin.

Abstract: In recent years, there has been increasing interest towards the synthesis of exchange coupled bi-magnetic hard/soft and soft/hard core/shell nanoparticles, thanks to their various applications, e.g. magnetic fluid hyperthermia (MFH).[1], [2] Among the proposed materials, spinel ferrite (MIIFe2O4, MII= Fe, Co, Mn, etc.) is the most interesting, due to the possibility of finely tuning the magnetic behaviour depending on the type of the divalent ion, leading to hard or soft isostructural phases. Therefore, the main advantage of their use is the possibility of the epitaxial growth of the shell around the pre-exiting core, trough the so-called seed-mediated growth method. Generally, this method is conducted by means of surfactant-assisted high temperature thermal decomposition of organometallic precursors, [2]–[4] which allows a good control of the shell growth and high crystallinity. Nevertheless, because of the high amount of toxic organic solvents, this method cannot be considered environmental friendly. Consequently, alternative methods that preserve the advantages of the thermal decomposition but use lower temperature and low-boiling solvents are currently being investigated. In this work, a low-cost seed-mediated growth strategy in solvothermal conditions was used to synthesize core-shell nanoparticles made of hard (CoFe2O4) and soft ferrite spinel phases (Fe3O4, γ-Fe2O3, MnFe2O4). The nanoparticles show a spinel structure (XRD), spherical shape, low dispersity (TEM and HRTEM) and are capped by a monolayer of oleate molecules (TGA and FTIR). The chemical mapping at atomic level by the combined use of STEM-EDX and STEM-EELS techniques confirmed the formation of a core-shell structure revealing the effectiveness of the adopted synthesis method for the synthesis of these systems and providing details on the hard/soft interfaces. The core-shell samples have been also studied together with a suitable physical mixture of the two counterparts by 57Fe Mössbauer spectroscopy giving interesting information about the magnetic coupling of the two phases. MHF measurements highlight that the core-shell ferrimagnetic – ferrimagnetic architectures are promising systems showing increased heat release with respect with the corresponding cores.


R.P. Patil
Bhonsala Military College, India
Title: Synthesis of Nanocrystalline BaTiO3 by Hydrothermal Method for H2S Gas Sensing Application

Biography:

Abstract: Nanocrystalline Barium titanate (BT) is synthesized by hydrothermal route The formation of nano crystalline Barium titanate is confirm by X-ray diffraction studies (XRD), Transmission Electron Microscopy (TEM) ,Selected area electron diffraction (SAED) and UV-Visible Reflection Spectra. XRD analysis confirms material Barium titanate with perovskite structure with crystallite size ranging from 27 to 52 nm. & TEM images confirms that the grain were nearly cubic type in nature with sizes from 20 to 54 nm.(Average: 32.11nm.). The lattice constant of cubic BT exactly matches with JCPDS value (4.016). The band gap energy obtained from UV-Visible Reflection Spectra is 3.35eV matches with reported value. The thick films of nano BaTiO3 were prepared by screen - printing technique in desired pattern. The gas sensing performance of the materials have been investigated for various interfering gases such as CO, NH3, H2S, LPG, CO2, H2, SO2 etc. At operating temperature varying from 50 oC to 450 oC. The result indicate that the nano BaTiO3 material thick film showed much better response to H2S (500 ppm) gas at 250 oC. The BaTiO3 nanomaterial is excellent potential candidate for gas sensors.


Nanotechnology-2016 | by: Scientific Future Group