Scientific Program

Conference Series LLC Ltd invites all the participants across the globe to attend 35th International Conference on Nanomaterials and Nanotechnology Berlin, Germany.

Day 1 :

Keynote Forum

Anton FICAI

University POLITEHNICA of Bucharest, Romania

Keynote: Mesoporous silica as drug delivery platform in disbiosis

Time : 10:00 - 10:30

Nano Materials 2022 International Conference Keynote Speaker Anton FICAI photo
Biography:

Anton FICAI is a young professor with habilitation involved in both academic and scientific life of the University POLITEHNICA of Bucharest and Academy of Romanian Scientists. His major academic interests are related to the coordination of the teaching activities related to the classes: Chemistry, Chemistry and Characterization of Materials, Composite Materials for Medicine, NaoBioMaterials for Tissue Engineering  and Drug Delivery Systems. The research interests are much broader and cover the following topics: tissue engineering; drug delivery systems; multifunctional materials; composite materials; antimicrobial / antitumoral materials; nanoparticles synthesis and characterization; coatings and surface modification; etc. Till now, over 300 scientific papers, from which 270 ISI papers and 18 books or chapters (including 2 edited books) were published along with 28 patent applications (8 of them being already released) and attracting over 3000 citations and a Hirsh index of 30.

 

Abstract:

Drug delivery systems are increasingly studied or even used for a wide range of biomedical applications [1-3]. Internal or external factors can be used to tune the delivery of the biologically active agents and thus to assure the optimal conditions. Micro and Mesoporous materials are widely used as drug delivery system because they can assure the desired controlled release of a wide range of biologically active agents. Usually, mesoporous silica exhibit large surface area and good surface reactivity to be easily functionalized and thus to assure the desired delivery profile considering especially surface modification, pores' characteristics, and triggering factors.

Starting from the advantages of the mesoporous silica supports, innovative drug delivery systems can be developed in order to obtain targeted drug delivery systems. In this work, several examples of drug delivery systems based on mesoporous silica and different polyphenols will be discussed.

 

Keynote Forum

Osman Adiguzel

Firat University, Turkey

Keynote: Crystallographic Basis of Thermal and Mechanical Reversibility in Shape Memory Alloys

Time : 10:30-11:00

Nano Materials 2022 International Conference Keynote Speaker Osman Adiguzel photo
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 been retired on November 28, 2019, due to the age limit of 67, following academic life of 45 years.

He published over 80 papers in international and national journals; He joined over 120 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 six years (2014 - 2019) over 60 conferences as Keynote Speaker and Conference Co-Chair organized by different companies. Also, he joined over 70 online conferences in the same way in pandemic period of 2020-2021.  

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 effect is a peculiar property exhibited a series of alloy system called shape memory alloys, which have dual characteristics called thermoelasticity and superelasticity, from viewpoint of memory behavior. These alloys take place in class of advanced novel materials with these properties and response to the external conditions. Two successive crystallographic transformations, thermal and stress induced martensitic transformations govern these phenomena in crystallographic basis. Shape memory effect is performed thermally in a temperature interval on heating and cooling after first cooling and, this behavior can be called thermal memory or thermoelasticity. Superelasticity is performed mechanically by stressing and releasing at a constant temperature in the parent austenite phase region of materials, and this behavior can be called mechanical memory.

Thermal induced martensite occurs along with lattice twinning and ordered parent phase structures turn into multivariant twinned martensite structures in self-accommodating manner, and twinned martensite structures turn into detwinned martensite by means of stress induced martensitic transformation on stressing. Superelasticity is performed by stressing material and releasing in a constant temperature in parent phase region and performed simultaneously upon releasing the applied stress. This phenomenon is performed in non-linear way; stressing and releasing paths are different in the stress-strain diagram, and hysteresis loop refers to energy dissipation.

The elementary processes involved in such martensitic transformations are essentially shear deformations, lattice invariant shears, and shuffling of atomic planes. Lattice invariant shears occur with cooperative movements of atoms on close packed planes of ordered parent phase lattice in displacive manner. The atomic plane shuffling and shearing can be considered as elementary processes activated during displacive martensitic transformations. Lattice invariant shear and lattice twinning is not uniform in copper-based shape memory alloys, and cause to the formation of long-period layered complex martensitic structures with lattice twinning on cooling.

Electron diffraction and x-ray diffraction studies performed on copper based CuZnAl and CuAlMn alloys. X-Ray diffraction profiles taken from the alloy samples exhibit superlattice reflections. Critical transformation temperatures of these alloys are over room temperature, and they are in fully martensitic state at room temperature. A series of x-ray diffractions were taken duration aging at room temperature. Diffraction results show that diffraction angles and peak intensities change with aging. This result refers to a new reaction in diffusive manner.

 

Nano Materials 2022 International Conference Keynote Speaker Ikrar Ahmad photo
Biography:

Ikrar Ahmad received his M.Sc. (Chemistry) degree in 2014 from Gurukul Kangri University Haridwar, Uttarakhand. In 2017, he joined Indian Institute of Technology Roorkee, India under the supervision of Prof. Anil Kumar. Here, he is focusing on the development of electrode material(s) for designing supercapacitor for efficient energy storage applications.

 

Abstract:

In this work, nitrogen and phosphorus co-doped reduced graphene oxide (N, P-rGO) nanohybrids has been synthesized using one pot greener in situ method using cytidine monophosphate as a dopant/reducing agent. This material has been characterized by various techniques such as UV-Vis, Raman, FE-SEM, TEM and thermal methods (TGA). The stability of N, P-rGO as an electrode material and the high operational potential window of 2.7 V (from -1.4 to 1.3 V) was achieved in three-electrode setup after running 150 electrochemical cyclic voltammetry (CV) cycles in neutral WIS 17 m NaClO4 electrolyte. Two-electrode aqueous symmetric supercapacitor (SSC) (N, P-rGO//N, P-rGO), designed by using CMP-mediated N, P-rGO as electrode material in neutral WIS 17 m NaClO4 electrolyte provided a fairly high energy density of 42.2 Wh Kg-1 at a power density of 315.2 W Kg-1 at 0.7 Ag-1 with superior cyclic stability, making it sustainable for energy storage applications. The ClO4- anion has been suggested to act as an effective H-bond net-work breaker for the bulk water, thereby, enhancing the cell voltage to 2.7 V. To the best of our knowledge, this system demonstrates a very high cell voltage for N, P-co-doped reduced graphene oxide with a high energy density.

Nano Materials 2022 International Conference Keynote Speaker Sikirat Sheu photo
Biography:

Abstract:

A bottom up method of synthesis was used to synthesized gold and silver nanoparticles capped by cysteine using sodium citrate tribasic and sodium borohydride  as a reducing agent for gold  and silver nanoparticles respectively and hydrothermal method of synthesis were used to synthesized molybdenum disulfide nanoparticles capped by cysteine .The synthesized  nanoparticles were characterized using Fourier Transform Infrared spectroscopy, Scanning Electron Microscope, Thermogravimetric Analysis, UV/visible spectroscopy ,Transmission electron microscope and Powder Xray Diffraction. The  synthesized nanoparticles  were used  for the adsorptive removal of Cd(II) and Pb(II)from aqueous solution  which were studied under the influence of the initial concentration of the adsorbates, contact time, dosage, temperature and pH .The sorption of Cd(II) and Pb(II) under various condition including  concentrations, pH, contact times, and temperature .The adsorption of Cd(II) by gold nanoparticles is best described by the Langmuir model and revealed the ability of gold nanoparticles to adsorbed 14.73 mg/g of the Cd(II)  at 20ppm . The Freundlich isotherm  model was used for Pb(II)with  7.82mg/g of Pb(II) at 20ppm  at 250C with adsorbent dosage of 0.1gL-1  . The adsorption of Cd(II) by molybdenum disulfide nanoparticles is best described by the Langmuir model for Cd(II) and Freundlich isotherm model for Pb(II) and revealed the ability of molybdenum disulfides nanoparticles to adsorbed 17mg/g of the Cd(II) and 9.8mg/g of Pb(II) at 20ppm at 250C with adsorbent dosage 0.1gL-1.The adsorption of Cd(II) and Pb(II) by silver nanoparticles is best described by the Temkin model and revealed the ability of silver nanoparticles to adsorbed 13mg/g of the Cd(II) and 9.8mg/g of Pb(II at 250C with adsorbent dosage 0.1gL-1 at 20ppm ,which suggest that the heat of adsorption is governed by chemisorption and physisorption with intra-particle diffusion . The adsorption kinetics follows the pseudo –second –order kinetics model for all the nanoparticles with high R2 revealing that physisorption and chemisorption with intra-particle and pore diffusion

 

Nano Materials 2022 International Conference Keynote Speaker Muhammad Masood Mukhtar photo
Biography:

Abstract:

Excellent and superior properties of alumina (Al2O3) nanocrytalline ceramic make it a one of the highly demanded advanced ceramics in the present competitive scenario of manufacturing and industrial applications. α-Αl2O3 nanoparticles with average particle size of 3.4, 5.2, 7.2 and 12.5 nm a series of Αl2O3 nanocrystalline ceramic samples were prepared by grain size variation. (Two-step sintering). The inverse Hall Pitch relationship between the microhardness and grain size of Αl2O3 nanocrystalline ceramic was observed. Critical grain size exists at which the properties of α- Αl2O3 nanocrystalline ceramics change significantly. Indentation method was employed to test the fracture toughness of Αl2O3 nanocrystalline ceramic. When the grain size decreased from 297 nm to 33 nm, the fracture toughness increased from 3.04±0.19 to 4.52±0.13 MPa∙m1/2. The enhance of the diffusional creep rate and grain-boundary may be the causes of the improvement of fracture toughness. The maximum microhardness of α- Αl2O3 Nanocrystalline ceramics (NCCs) with grain size is 22.32 GPa. Microstructure evaluation study of alumina Nanocrytalline ceramics is carried out by SEM, TEM and EDX. To study the microhardness and fracture toughness of alumnian nanocrytalline ceramics Vickers hardness test is performed. Further focusing on Investigate the behavior of positive and negative Hall pitch behavior by experimental and theoretical model results and evaluate the deformation mechanisms of alumina Nanocrystalline ceramics. Key Words: Alumina (Al2O3), Nanocr

Keynote Forum

Alnazaa Alhamad Ali

Aleppo University, Syria

Keynote: Preparation and Characterization Silica loaded with Vanadia Nanoparticles

Time : 12:30-1:00

Nano Materials 2022 International Conference Keynote Speaker Alnazaa Alhamad Ali photo
Biography:

Postgraduate student - PhD and lecturer in physical chemistry - specializing in surfaces and catalysis - Aleppo university - Faculty of Basic Sciences - holds a master's degree in physical chemistry with specialization in surfaces and catalysis with an excellent grade of 90 and 13 percent. Research title: Preparation and Characterization of Sulfated Iron Oxide. I am currently working on the preparation and characterization of silica vanadia nanocatalysts using various techniques. Through my research, I am looking forward to obtaining a scholarship that will help me continue my education, given the bad conditions in my beloved country, Syria. I have a great interest in the sciences of nano-catalysts, their preparation methods and their uses in various industries

Abstract:

In this research, a group of silica Vanadia catalysts was prepared, by loading vanadium pentoxide at a different percentage of loading on silica using the wet-impregnation method, after the prepared catalysts were heat-treated at 500 oC. The prepared catalysts were characterized by the following techniques: Physical adsorption of N2, SEM, scanning electron microscopy, EDS analysis, XRD, FT-IR and Raman spectroscopy, titration, total surface acidity, and acid Density was determined using pyridine adsorption. Then, the catalytic activity of the catalysts prepared by the reaction of acetic acid esterification with n-butanol has been studied in a heterogeneous system was studied.

Nano Materials 2022 International Conference Keynote Speaker Innocent C. Nwodo photo
Biography:

Abstract:

As society has developed, nanoparticles have had a profound impact. Recently, the energy sector has benefited from the synthesis of transition metal nanoparticles and their phosphates. In this manuscript, the performances of nickel-cobalt phosphate nanoparticles produced via coprecipitation were examined. The morphology, structural, optical, and electrochemical features of the produced nanoparticles were determined using scanning electron microscopy (SEM), X-ray diffractometry (XRD), UV-vis spectrophotometer, and a 3-electrode potentiostat, respectively. The SEM and XRD data revealed nanospikes and crystalline structures. The optical data revealed that when the molar concentrations increased, the particles' absorbance increased and their band gap energy (3 eV) decreased. The nanoparticles' charge-storage capacity was discovered through electrochemical experiments. In the future, the particles produced may be used in supercapacitors.