Papers – Page 66 – TechConnect Briefs

Fabrication of size-tunable gold nanoparticles using plasmid DNA as a biomolecular reactor

Samson J., Piscopo I., Yampolsky A., Nahirney P., Parpas A., Toschi A., Drain C.M., Hunter College of CUNY, US

Plasmid DNA has proven to be a successful template/mold for the formation of metallic nanoparticles because it is readily available, inexpensive, and malleable i.e. it can exist in different topologies. Using different plasmid DNA species [...]

Preparation and Characterization of Nanocrystalline GaP for Advanced Light Emissive Device Structures

Pyshkin S.L., Ballato J., Chumanov G., Tsyntsaru N., Rusu E., Academy of Sciences, MD

This work will review our efforts to advance quality of GaP nanoparticles for light emissive devices based on polymer/GaP nanocomposites. The choice of materials is based on their complementary behavior since each is a candidate [...]

Effect of Grain Size on Neél Temperature, Magnetic and Electrical Properties of NiFe2O4 Nanoparticle Synthesized by Chemical Co-precipitation Technique

Manjura Hoque Sk., Atomic Energy Centre, Bangladesh Atomic Enegry Commission, BD

NiFe2O4 nanoparticle has been prepared by chemical co-precipitation technique. X-ray diffraction patterns of as dried and samples calcined at different temperatures for four hours have been studied. The sample in the as dried condition is [...]

Size-Controllable Synthesis and Characterization of Wide Band Gap Semiconductor Oxide Nanoparticles

Sharma A., Sharma R., Sharma A., Sharma R., Sharma A., Sharma R., AKG College of Engineering, IN

A search of new class of semiconductors with metal oxides of specific sizes motivated us to synthesize nanoparticles. The preparation of nanocomposites using dispersed nanoparticles into solid hosts is nowadays an attracting scientific art and [...]

The influences of nanoscale titanium dioxide particle size and crystal structure on light absorbance

Zou M., Yang F., Ma J., Chen Y., Cao L., Liu F., Chinese Academy of Inspection and Quarantine, CN

Nanoscale titanium dioxide is an important physical sun-block material and is widely used in sunscreen. In our test, the influences of the particle size and crystal structure on light absorbance were examined. The experiment shows [...]

Catalytic Degradation of Substituted Phenols in Water by Chemically Synthesized Bimetallic Nanoalloys

Nazir R., Mazhar M., Quaid-i-Azam University, PK

Substituted phenols are important industrial products and ubiquitous in aquatic environment. Their environmental toxicity and resistance against biodegradability make them a persistent pollutant and major environmental hazard. The wide spread use of these contaminants have [...]

Preparation of ZnAl2O4 Catalytic Support by Combustion Reaction: Influence of Type of Heating Source

Leal E., Viana K.M.S., Kiminami R.H.G.A., Meneghetti S.M.P., Costa A.C.F.M., Lira H.L., Universidade Federal de Campina Grande, BR

The aim of this work is to evaluate the esterification activity of ZnAl2O4 catalysts obtained by different ways of heating (IU-plate, IIU-muffle furnace and IIIU-microwave oven) during the combustion synthesis using urea as reducing agent, [...]

SAPHIR – European Project

Goepfert C., CILAS, FR

Industrial needs in terms of multifunctional components are increasing. Several sectors are concerned, ranging from mature high volume markets like automotive applications, high added value parts like space & aeronautic components or even emerging activities [...]

Formation and stabilization of gold and silver clusters and nanoparticles in mordenites

Pestryakov A., Bogdanchikova N., Tuzovskaya I., Avalos M., Farías M.H., Tomsk Polytechnic University, RU

Supporting silver and gold on mordenites by ion-exchange method with further reduction with H2 leads to formation of neutral and charged metal clusters inside zeolite channels as well as metal nanoparticles on external surface of [...]

Effect of C Content and Calcination Temperatures on the Characteristics of C-doped TiO2 Photocatalyst

Chen F.Y., Lin Y.-T., National Chung Hsing University, TW

This study is about the effect of carbon content and calcination temperatures on the characteristics of C-doped TiO2 prepared by sol gel method. Synchrotron radiation with high energy and resolution was applied for the identification [...]