38^th Global Summit on Nanoscience and Technology June 21-22, 2021 Osaka, Japan

Biography:

Dr Adiguzel graduated from Department of Physics, Ankara University, Turkey in 1974 and received PhD- degree from Dicle University, Diyarbakir-Turkey. He has studied at Surrey University, Guildford, UK, as a post doctoral research scientist in 1986-1987, and studied on shape memory alloys. He worked as research assistant, 1975-80, at Dicle University and shifted to Firat University, Elazig, Turkey in 1980. He became professor in 1996, and he has already been working as professor. He published over 60 papers in international and national journals; He joined over 100 conferences and symposia in international and national level as participant, invited speaker or keynote speaker with contributions of oral or poster. He served the program chair or conference chair/co-chair in some of these activities. In particular, he joined in last seven years (2014 - 2020) over 80 conferences as Keynote Speaker and Conference Co-Chair organized by different companies.  He supervised 5 PhD- theses and 3 M.Sc- theses. Dr. Adiguzel served his directorate of Graduate School of Natural and Applied Sciences, Firat University, in 1999-2004. He received a certificate awarded to him and his experimental group in recognition of significant contribution of 2 patterns to the Powder Diffraction File – Release 2000. The ICDD (International Centre for Diffraction Data) also appreciates cooperation of his group and interest in Powder Diffraction File.
 

Abstract:

Shape memory alloys take place in a class of advanced smart materials by exhibiting a peculiar property called shape memory effect. This property is characterized by the reversibility of two certain shapes of material at different conditions. With these properties, these alloys are used in many fields, such as bioengineering, metallurgy, building industry, and many engineering fields. These alloys exhibit dual characteristics, thermoelasticity and superelasticity from viewpoint of memory behavior. Thermoelasticity is initiated by cooling and stressing, and performed thermally on heating and cooling, by recovering the original and deformed shapes, respectively. Therefore this behavior is called thermoelasticity. Shape memory effect is based on dual crystallographic phase transformations, thermal and stress induced martensitic transformations. Thermal induced martensitic transformation occurs on cooling along with lattice twinning, and ordered parent phase structures turn into twinned martensite structures. Twinned martensite structures turn into the detwinned martensite structures by means of stress induced martensitic transformation by stressing material in the martensitic condition. These alloys exhibit another property, superelasticity which is performed in only mechanical manner by stressing and releasing in the parent austenite phase region. Shape Memory Effect is performed thermally in a temperature interval depending   on cooling and heating, whereas superelasticity is performed by stressing the material in the strain limit in the parent phase region, and shape recovery is performed simultaneously upon releasing the applied stress. Shape memory effect is result of successive thermally and stress induced martensitic transformations, whereas   superelasticity is the result of stress-induced martensitic transformation and performed in non-linear way, unlike normal elastic. Loading and unloading paths are different, and cycling loop reveals energy dissipation. Thermal induced martensitic transformations occur on cooling with cooperative movement of atoms in <110 > -type directions by means of lattice invariant shears on a {110} - type plane of austenite matrix which is basal plane of martensite.

Copper based alloys exhibit this property in metastable beta-phase region. Lattice invariant shear and lattic twinning is not uniform in these alloys and cause to the formation of unusual complex layered structures.

In the present contribution, x-ray diffraction and transmission electron microscopy (TEM) studies were carried out on two copper based CuZnAl and CuAlMn alloys. X-ray diffraction profiles and electron diffraction patterns exhibit super lattice reflections inherited from parent phase due to the displacive character of martensitic transformation. Specimens of these alloys were aged at room temperature for along term, and x-ray diffractograms taken during ageing show that diffraction angles and peak intensities changed. This result refers to a new transition and rearrangement of atoms in diffusive manner.

Biography:

Dr. Anil Ramdas Bari has completed his PhD at the age of 30 years from Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon. He is the Head of Department of Physic, IQAC / NAAC Coordinator and NSS Programme Officer of Arts, Commerce and Science College, Bodwad. He has published more than 47 papers in reputed journals and presented more than 80 research papers in seminars, conferences and workshops and over 100 on online mode. He attained more than 60 online webinars. He has been serving as an editorial board member of reputed journals. He has participated as an Organizing Committee Member in the Scientific Committee of 17 conferences and associations as well as served as a reviewer in a wide range of National and International Journals. He has chaired the sessions of the International Conferences and member of various scientific societies. His Scopus h-index is 11, Google Scholar h-index is 16 and Google Scholar i10-index is 20. He is an Executive Member of the Board of Studies, Maharashtra State Bureau of Textbook Production and Curriculum Research (Balbharti), Pune and Academic Councellor of Indira Gandhi National Open University, New Delhi.

Abstract:

Nanostructured powders of ZnO were prepared using ultrasonic atomization  technique. The prepared powders were characterized using X-ray diffraction, scanning electron microscopy, transmission electron microscopy and elemental analysis using EDAX. It was observed from XRD and TEM that the powder consisted of nanocrystallites with sizes less than 20 nm. It was confirmed from TEM analysis that the crystallites were nearly spherical in shape. Furthermore this nanostructured ZnO powder is used to prepared thick films using screen-printing techniques. Thick film is used as sensor to test the conventional gas and simulant of highly toxic chemical warfare agents. The thick film sensor gives maximum response to Ammonia and DMMP- a simulant of Sarin

Biography:

Dr. Abhishek Mathur has completed his PhD from Jiwaji University, Gwalior, India and National Institute of Malaria Research (ICMR), Haridwar, India. He is working as DGM- Technical and R&D in Prathista Industries Limited, Telangana State, India. He has published more than 100 papers in reputed journals and has been serving as an editorial board member of repute.

Abstract:

Plant growth promoting rhizobacteria (PGPRs) play a vital role in maintaining soil fertility and plant health. The microbes residing in the soil are beneficial for the growth of crops in terms of vegetative and reproductive growth are known as plant growth promoting rhizobacteria (PGPRs). They can act as biofertilizers, pesticidal and insecticidal agents. Simultaneously, the PGPRs increase the resistance to biotic and abiotic stress. These are effective growth modulators for the crop as they secrete novel metabolites and growth molecules that enable the crop to sustain in adverse and stress conditions. These molecules also induce systemic resistance and anti- pathogenic effect against the soil borne infections. Several substances produced by antagonistic rhizobacteria have been related to pathogen control and indirect promotion of growth in many plants, such as siderophores and antibiotics. The PGPRs (growth promoting action, pesticidal and insecticidal action) were found to have positive PGPR traits viz. IAA production, siderophores production, Cytokinin and HCN production. The molecules and secondary metabolites secreted by such PGPRs are beneficial in terms of growth promotion and defensive properties. These metabolites can be utilized further to synthesize nanoparticles after combination with in organic metallic ion. These fused nanoparticles are found to have more significant and beneficial aspects in agriculture. Nanoparticles are 100 mm or less, nanoparticles synthesize by a biogenic enzymatic process. Microorganisms such as bacteria, actinomycetes, and fungi play an important role in the treatment of toxic metal through reduction of metal ions and are considered as potential Nano factories. These microbes and their secondary metabolites are being used for the preparation of biogenic nanoparticles. These nanoparticles are very cost effective and are significant in terms of application potential. The present study will reveal the preparation; formulation and application of biological nanoparticles based on microbes and their metabolites for their growth promoter and defensive action properties on selected crops for sustainable agricultural productivity.

Biography:

Cheng Zhu obtained his Ph.D from Soochow University and is now conducting postdoctoral studies at Department of Chemical and Biological Engineering, University of Colorado Boulder. He has published more than 35 papers (2 journal covers) in reputed journals and has been serving as editorial board members of Journal of Biotech Research & Biochemistry and Journal of Protein Research & Bioinformatics. He was awarded the National scholarship for doctoral students (2017), the Suzhou industrial park scholarship (2019), and the outstanding dissertation of Soochow University (2020).

Abstract:

Interface Force Field (IFF) is a CHARMM-based force field database for life science and materials discovery using molecular dynamics (MD) simulations. The developed IFF contains the models and parameters of metals, ions, oxides, gases, polyemers mineals and 2D materials, and is validated as a highly reliable and accurate tool to theoretically research the interfacial interactions  and energies. We employ an example system with benzene/naphthalene molecules adsorbed on Pt(111) surface to precisely calculate the heat of adsorption. The breakthrough herein is the concept of introducing virtual pi electrons for the aromatic rings to simulate the impacts of pi electron clouds in reality. With the new IFF model and parameters, a revolutionary accuracy of 100% is achieved for the heat of adsorption determination for both benzene and naphthalene molecules, which is distinctly superior to CHARMM-IFF and density-functional theory (DFT). Moreover, with the comparison with perfect Pt(111) surface, it is discovered that concave defects on Pt(111) surface turn out larger heat of adsorption while large terraces and islands leads to similar heat of adsorption estimation. This work offers referential and reliable models and force field parameters that can be used for quantitative prediction/determination of organic-metal interfaces, which is of great significance in the applications such as material science, catalysis, biological engineering and pharmaceutical molecules.

Biography:

Cheng Zhu obtained his Ph.D from Soochow University and is now conducting postdoctoral studies at Department of Chemical and Biological Engineering, University of Colorado Boulder. He has published more than 35 papers (2 journal covers) in reputed journals and has been serving as editorial board members of Journal of Biotech Research & Biochemistry and Journal of Protein Research & Bioinformatics. He was awarded the National scholarship for doctoral students (2017), the Suzhou industrial park scholarship (2019), and the outstanding dissertation of Soochow University (2020).

Abstract:

Protein scaffolds can direct the mineralization of the amorphous precursors, but the templating mechanism remains elusive. Since the amyloid-like amelogenin nanoribbons of tooth enamel can guide apatite mineralization, we keep a watchful eye on the amelogenin sub-segments including an amyloid-like domain, nanoribbon conformation and function. The impact of nanoribbon structure and chemistry on amorphous calcium phosphate (ACP) nucleation were investigated by molecular dynamics (MD) simulations and in situ atomic force microscopy (AFM). The conformations of the peptide nanoribbons formed on highly oriented pyrolytic graphite (HOPG) were confirmed by MD simulations, where the hydrophobic groups bind to the HOPG while hydrophilic residues point to the solutions. MD simulations also confirm that all the sequences can help nucleate ACP, especially on those with phosphorylated-serine and more hydrophilic residues. The distribution of hydrophilic residues matches the structure of the multi-ion clusters comprising ACP. The AFM results show that all sequences substantially reduce nucleation barriers by creating low-energy interfaces, while phosphorylated-serine dramatically enhances kinetic factors associated with Ca ion binding. These findings provide crucial insights into the templating mechanism and nucleation chemistry, uncovering the structure-function relationships underlying amelogenin biomineralization. It also shows guiding significance of synthesizing hybrid materials of biochemistry and bioengineering.

Biography:

Carlos Manuel Jarquin Sanchez is a 16-year old with a mission to solve energy production and energy storage via nanotechnology and advanced materials and creative writing. He is a high schooler at The Buckley School with an interest in Nanotechnology and Material Science. He is an Executive Board Member at MIND Magazines, an authentic STEAM-based journal that displays articles written by students that explore very letter of STEAM, and a Technical Writer at Grinfer.com & Medium.com, where he writes about nanotechnology, organic chemistry, aerogels, and optics.

Abstract:

“100 Nano-Stories: Bookmarked!” is a unique publication of articles on Medium.com involving the explanation of organic chemistry, optical properties, thermal properties, mechanical properties, and hydrophobic properties of aerogels and nanotechnology. The majority of the information to create the articles was collected from Sci-Hub, PubChem, MIT Open Course Ware, Khan Academy, and Aerogel.org. The intention behind writing 100 articles on several concepts in aerogel technology was because of the author’s interest in material science, advanced materials, and nanotechnology, as well as to share the information to the public in away where the world can be exposed to the marvellous world of materials.

Biography:

Kathleen Hefferon received her PhD from the Department of Medical Biophysics, University of Toronto and currently teaches microbiology at Cornell University. Kathleen has published multiple research papers, chapters and reviews, and has written three books. Kathleen is the Fulbright Canada Research Chair of Global Food Security and has been a visiting professor at the University of Toronto over the past year. Her research interests include the use of biotechnology to promote global health. Kathleen lives in New York with her husband and two children.

Abstract:

For over two decades now, plants have been explored for their potential to act as production platforms for biopharmaceuticals, such as vaccines and monoclonal antibodies. Without a doubt, the development of plant viruses as expression vectors for pharmaceutical production have played an integral role in the emergence of plants as inexpensive and facile systems for the generation of therapeutic proteins. More recently, plant viruses have been designed as non-toxic nanoparticles which can target a variety of cancers and thus empower the immune system to slow or even reverse tumor progression. The following presentation describes the employment of plant virus expression vectors for the treatment of some of the most challenging diseases known today. The presentation concludes with a projection of the multiple avenues by which virus nanoparticles could impact developing countries.