SiO2/ZnS core/shell nanostructures have been synthesized at room temperature by a simple wet chemical method. The prepared materials are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), infrared spectroscopy (IR), UV–vis spectroscopic and transmission electron microscopy (TEM) studies. X-ray diffraction pattern exhibits peaks correspond to the cubic phase of ZnS. Th...

Recently, the synthesis of low-toxic quantum dots (QDs) and their application in biomedicine have attracted considerable attention. ZnSe nanocrystals doped with Mn ions which do not contain any Class A element (Cd, Pb, and Hg) can be used as a new generation of luminescent nanocrystals due to their strong dopant emission. In 2001, Norris et al. presented an organometallic synthetic route for th...

Localized surface plasmon resonance (LSPR) and electrochemistry measurements connecting to core-shell structure nanoparticle are successfully exploited in a simultaneous detectable scheme. In this work, the surface plasmon band characterizations of this nanostructure type are initially examined by controlling the core size of the silica nanoparticle and shell thickness of the deposited gold. Th...

Introduction: Nanoparticles have several exciting applications in various fields of biomedicine. It has been found that among different classes of nanoparticles core/shell is most promising for field of nano-medical imaging and therapy due to their distinct advantages. The core/shell type nanoparticles can be generally comprising of two nanoparticles one act as a core (inner ma...

The effect of substituting 0.01 or 0.02 at.% Er for Sc in an Al–0.06 Zr–0.06 Sc at.% alloy was studied to develop cost-effective high-temperature aluminum alloys for aerospace and automotive applications. Spheroidal, coherent, L12-ordered Al3(Sc, Zr, Er) precipitates with a structure consisting of an Er-enriched core surrounded by a Sc-enriched inner shell and a Zr-enriched outer shell (core/do...

In vivo biological application of upconversion nanoparticles (UCNPs) prefers excitation of 700-850 nm, instead of 980 nm, due to the absorption of water. Recently approach in constructing robust Nd doped UCNPs subject to 808 nm excitation relies on a thick Nd sensitized shell. However, for the very 10 important and popular Förster resonance energy transfer (FRET)-based applications, such as pho...