Nanoparticle Synthesis & Applications – Page 21

Europium-doped gadolinium sulfide nanoparticles as a multimodal imaging agents for bio-application

Park J.K., Lee S.J., Korea Research Institute of Chemical Technology, KR

Most of the magnetic nanoparticles based on iron oxides have been widely used experimentally for numerous in vivo applications such as magnetic resonance imaging (MRI) contrast enhancement, tissue repair, hyperthermia, medical diagnostics, and therapeutics. These [...]

Self-assembled fluorescent magnetic nanoprobes for multimode-biomedical imaging

Lim E.-K., Haam S., Yonsei University, KR

We fabricated multimode nanoprobes for acquisition of biological information at different object levels, i.e., in vivo detection and ex vivo validation for characterizing tumor angiogenesis. Fluorescent magnetic nanoprobes (FMNPs) were synthesized by using amphiphilic pyrenyl [...]

Monitoring of glass transition at a polymer surface by localized surface plasmon resonance

Kaan Kalkan A., Putla R.K., Oklahoma State University, US

The temperature below which a polymer is in glassy state and above which is in viscous state is called the glass transition temperature (Tg). Investigations on polymer surfaces by various groups revealed that the surface [...]

Color tunable nanophosphors

Sotiriou G.A., Schneider M., Pratsinis S.E., Particle Technology Laboratory, ETH Zürich, CH

In this study, yttrium oxide nanophosphors doped with Tb and Eu ions were made by flame aerosol technology. The emission color of these nanophosphors could be precisely tuned from green to red by tuning the [...]

Inverter Circuits Based on Low-Temperature Solution-Processed ZnO Nanoparticle Thin-Film Transistors

Wolff K., Vidor F.F., Hilleringmann U., University of Paderborn, DE

Promising enhancement-load inverter cuircuits using bottom-gated ZnO nanoparticle thin-film transistors and a poly(4-vinylphenol) (PVP) dielectric are demonstrated. The deposition of the ZnO active layer is done by spin coating of a colloidal dispersion. Due to [...]

Enhancement in photoluminescence emission in the UV-visible region from chemically synthesized silver doped ZnS nanoparticles

Sarkar R., Kumbhakar P., Mitra A.K., NIT Durgapur India, IN

Nanoparticles of ZnS:Ag doped with Ag+ (0.5%) and capped with polyvinyl pyrolidone (PVP) have been synthesized by chemical co-precipitation method. The measured particle size is ~2.5 nm which has been obtained from the analyses of [...]

Optical Properties of Ternary Alloyed Cd1-xZnxSe Semiconductor Nanocrystals

Chen I-H., Wang K-W, Chung S-R, National Formosa University, TW

In order to obtain high quantum yield (QY) nanocrystals and simplify the preparation procedure, one-pot synthetic method is conducted to prepare ternary alloyed nanocrystals. Ternary alloyed Cd1-xZnxSe (x=0, 0.2, 0.5, 0.8 and 1) semiconductor nanocrystals [...]

Application of zinc and magnesium oxides nanoparticles in crosslinking of carboxylated butadiene-acrylonitrile rubber

Lipinska M., Zaborski M., Technical University of Lodz, PL

The aim of this work was to study the activity of several nanosized zinc and magnesium oxides in the crosslinking of carboxylated nitrile elastomer XNBR. The influence of the specific surface area, particle size and [...]

Bimodal size distributed silver nanoparticles on copper substrate: in situ heat treating under air and protective atmospheres

Sopousek J., Bursik J., Zalesak J., Pesina Z., Masaryk University, CZ

Ag nano-suspension was prepared by a wet synthetic route. The liquid phase consisted of an organic solvent and the particles had a bimodal distribution with a very narrow size distribution (compare Figure 1). The surface [...]

Synthesis, Characterization and Sampling of GaP Nanoparticles for Light Emissive Devices

Pyshkin S.L., Ballato J., Belevschii S., Rusu E., Racu A., Van DerVeer D., Academy of Sciences of Moldova, MD

This work reviews our recent efforts to advance quality of GaP nanoparticles in framework of the current US/Italy/France/Romania/Moldova project sponsored by the US Government. These quality GaP nanoparticles were synthesized for application in advanced light [...]