core-shell – Page 2 – TechConnect Briefs

Characterization of Core-Shell nanoparticles using Field-Flow Fractionation and Single-Particle ICP-MS

Tadjiki Soheyl, Montano Manuel, Ranville James, Beckett Ron, Postnova Analytics, US

A methodology has been developed to measure mass, size and density of the core and the shell of a core-shell nanoparticle for the first time. The FFF-based methodology allows for the measurement of the mass [...]

Novel Syntheses of Silica-Gold Core-Shell Particles

Cook M.J., Johnston J.H., Victoria University of Wellington, NZ

Methods for the synthesis of silica-gold core-shell particles presented in literature are not considered commercially viable due to various requirements: high reaction temperatures, the use of light-sensitive reagents, the use of ex-situ gold seeding adding [...]

Preparation of Photocatalytic Silicon Core-shell Nanoparticles Covered by ZnS Shell in Solid-Gas Reaction

Dvorsky R., Praus P., Svoboda L., Matýsek D., Dropa T., Trojková J., Šollová K., VŠB-Technical University of Ostrava, CZ

For easy handling in some practical processes, active nanoparticles are usually deposited on surfaces of larger carrier particles. In our previous work, the particles of montmorillonite MMT with a mean size of 300 nm served [...]

Numerical Study on Gate-All-Around Tunneling FET with SiO2 Core and Si Shell Structure

Zhang A., Zhang L., Zhang X., Zhang A., Zhang L., Zhang X., Mei J., Zhang A., Zhang L., Zhang X., He H., He J., He H., He J., Chan M., PKU-HKUST Shenzhen-Hongkong Institution, CN

This work presents a gate-all-around tunneling FET based on SiO2 core and Si shell structure (GAA-SOI-TFET) and demonstrates its performance characteristics via the numerical simulation method. The 3-D T-CAD numerical simulations demonstrate that this new [...]

Synthesis of Stabilized Silver nanoparticles exposed to Hydrochloric Acid

Atta A.M., Allohedan H.A., Ezat A., Issa Z.A., King Saud Unversity, SA

The bioavailability of ingested silver nanoparticles (AgNPs) depends in large part on initial particle size, shape and surface coating, properties which will influence aggregation, solubility and chemical composition during transit of the gastrointestinal tract. In [...]

Spectroscopic study on the charge redistribution between Au and Ag in Au@Ag core-shell nanoparticles

Nishimura S., Anh D.T.N., Mott D., Ebitani K., Maenosono S., Japan Advanced Institute of Science and Technology, JP

Charge transfer in heteromeric structures such as Au@Ag core-shell nanoparticles (NPs) and Au@Ag@Au double-shell NPs was demonstrated using X-ray absorption near-edge structure (XANES) and X-ray photoelectron spectroscopy (XPS) techniques. XANES analyses confirmed that the d-orbital [...]

Using nanofluids to enhance the operation of solar energy systems

Otanicar T., Loyola Marymount University, US

Nanofluids have garnered a lot of attention for their potential to modify thermal properties, particularly the thermal conductivity. While these modifications have been heavily investigated within the heat transfer and materials community, nanofluids additionally offer [...]

Electrodeposition of Rhenium-Tin Nanowires

Naor-Pomerantz A., Eliaz N., Gileadi E., Tel Aviv University, IL

Rhenium (Re) is a refractory metal which exhibits an extraordinary combination of properties. Thus, nanowires and other nanostructures of Re-alloys may possess unique properties resulting from both Re chemistry and the nanometer scale, and become [...]

Multifunctional Fe3O4/ZnO core-shell nanoparticles for photodynamic therapy

Beltran J.C., Tomar M.S., Singh S.P., Perales O., Rivera L., Peña S., University of Puerto Rico-Mayagüez, PR

The photodynamic therapy (PDT) based on core-shell structures require efficient luminescence within specific wavelength range, preferably in near infrared. In the present study we aim to create a multifunctional platform for PDT through Fe3O4/ZnO core [...]

Amphiphilic Polymeric Core-Shell Particles: Novel Synthetic Strategy and Potential Applications of the Particles

Li P., The Hong Kong Polytechnic University, CN

We have developed a novel and commericial viable route to a wide range of highly uniform, amphiphilic core-shell particles in nano- to micro-scaled sizes. Novel feature of this synthetic approach is that it combines graft [...]