core-shell – TechConnect Briefs

Core-shell and Immobilized Nanoscale Ferrites for H2 Generation From Thermochemical Water-splitting

Amar V., Puszynski J., Shende R., South Dakota School of Mines and Technology, US

In this study, water was used as energy carrier for H2 generation via thermochemical water-splitting process using core-shell and immobilized nanoscale ferrite materials. Core-shell ferrite nanoparticles were synthesized using pluronic P123 templating assisted sol-gel method. [...]

Engineered Core-Shell Cu particles demonstrate strong potential for plant disease control

Young M., Ozcan A., Myers M.E., Graham J.H., Santra S., University of Central Florida, US

Copper (Cu) bactericides/fungicides are used extensively for crop protection in agriculture. There is an increasing concern for Cu accumulation in fertile soil and potential for Cu leaching into the surrounding ecosystem. Moreover, development of Cu [...]

Optimization of synthesis conditions to prepare desired shell thickness of superparamagnetic MgFe2O4@SiO2 core-shell nanosphere for biomedical applications

Das H., Debnath N., Arai T., Sakamoto N., Shinozaki K., Suzuki H., Wakiya N., Shizuoka University, JP

We have described here a simple way for the fabrication of superparamagnetic MgFe2O4@SiO2 core-shell spherical nanoparticles with controlled shell thickness. First, core MgFe2O4 dense nano-spheres were directly synthesized by ultrasonic spray pyrolysis (USP) technique from [...]

Synthesis of Coaxial CoFe2O4 – (K0.5Na0.5 )NbO3 Nanotubes by Sol-gel Technique Using Inexpensive Templates

Chitra Lekha C.S., Rasi M., Aravind P.B., Anantharaman M.R., Nair S.S., Central University of kerala, IN

Magnetoelectric (ME) coupling, one of the most intriguing aspects of multiferroics, may arise directly between two or more ferroic orders as in single phase multiferroics or indirectly via strain. Strain intermediate ME coupling requires intimate [...]

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 [...]

Hydrogen Generation from Thermochemical Water-Splitting Using Core Shell Ni-Ferrite/Y2O3 Nanoparticles

Amar V.S., Shende R.V., South Dakota School of Mines & Technology, US

During thermochemical water-splitting process for hydrogen generation,ferritenanoparticles undergo significant grain growth that reduces their surface area and affect the porous morphology. Consequently, hydrogen volume generation diminishes with increase in thermochemical cycles. In order to mitigate [...]

Hydrogen Generation from Thermochemical Water-Splitting Using Core Shell Ni-Ferrite/Y2O3 Nanoparticles

Amar V.S., Shende R.V., South Dakota School of Mines & Technology, US

During thermochemical water-splitting process for hydrogen generation,ferritenanoparticles undergo significant grain growth that reduces their surface area and affect the porous morphology. Consequently, hydrogen volume generation diminishes with increase in thermochemical cycles. In order to mitigate [...]

A Physics Based Potential Model for Cylindrical Surrounding Gate MOSFETs with SiO2- Core Si-Shell Structure

Zhang X., He J., Chan M., Du C., Ye Y., Zhao W., Wu W., Wang W., PKU-HKUST Shenzhen-Hongkong Institution, CN

A physics based potential model for intrinsic long-channel cylindrical surrounding gate MOSFETs with SiO2 -core Si-Shell structure is presented in this paper. The accurate potential solution of Poisson’s equation in a cylindrical coordinate system is [...]

Fabrication and characterization of core-shell microspheres composed of pectin and arabinoxylans as controlled release systems for insulin

Díaz-Baca J., Martinez-Lopez A.L., Carvajal-Millan E., Pérez-López E., González-Ríos H., Balandrán-Quintana R., Rascón-Chu A., Centro de Investigacion en Alimentacion y Desarrollo A.C., MX

Currently incidence of diabetes is increasing worldwide very, WHO classifies it as an epidemic (WHO, 2012) and in Mexico is the leading cause of death (IMSS, 2012). The traditional form of insulin subcutaneous injection, is [...]

Biodegradable Polymer-Based Composite Particles for Targeted Drug Delivery Carriers with Magnetic Response

Kitamoto Y., Oka C., Ushimaru K., Tsuge T., Horiishi N., Tokyo Institute of Technology, JP

Core–shell composite particles with biodegradability and magnetism were prepared for targeted drug delivery based on magnetic guidance. The composite particles were composed of a core of biodegradable polymer and a shell of assembled magnetic iron [...]