The most recent advancements in food science and technology include cold sterilization of fresh-keeping packaging. Active packaging has received much interest due to the photocatalytic activity (PCA) functional nanoparticles, including titanium dioxide (TiO2) ferric oxide (Fe2O3). However, there are still significant concerns about toxicity safety these nanoparticles. This review emphasizes bac...

BACKGROUND Iron oxide nanoparticles have numerous and versatile biological properties, ranging from direct and immediate biochemical effects to prolonged influences on tissues. Most applications have strict requirements with respect to the chemical and physical properties of such agents. Therefore, developing rational design methods of synthesis of iron oxide nanoparticles remains of vital impo...

A new type of magnetically-recoverable catalyst was synthesized by the immobilization of H3PW12O40 on the surface of silica-encapsulated -Fe2O3 nanoparticles. A series of novel 1,3,5-triaryl pyrazoline derivatives has been synthesized by the reaction of chalcone and phenylhydrazine in the presence of the -Fe2O3@SiO2-PW12nanoparticles,  in high yields. The structures of compounds obtained were...

The aim of this research is to study Ni2+ supported on hydroxyapatite-core-shell magnetic γ-Fe2O3 nanoparticles (γ-Fe2O3@HAp-Ni2+) as a green and recyclable catalyst for the Biginelli reaction under solvent-free conditions. One-pot multi-component condensation of 1,3-dicarbonyl compounds, urea and aldehydes at 80 oC affords the corresponding compounds in high yields and in short reaction times ...

a simple and facile method for the preparation offe2+ supported on hydroxyapatite-core-shell-γ-fe2o3 nanoparticles (γ-fe2o3@hap-fe2+ nps) as an environmentally friendly and recyclable green catalyst is described and used for the one-pot synthesis of benzimidazoles and benzoxazole derivatives via reactions between aromatic aldehydes and ortho‐phenylenediamine or ortho‐aminophenol in aqueous medi...

This study aims to evaluate the effects of maghemite nanoparticles (γ-Fe2O3) coated with meso-2, 3-dimercaptosuccinic acid (DMSA) stabilizer on the survival and reproduction of the aquatic snail Biomphalaria glabrata. The cumulative means of egg masses and eggs per individual in the control group at the end of 4 weeks were 18.8 and 326.7, respectively. These values at the concentration of 1 mg/...

Green extracellular synthesis of the Fe2O3 nanoparticles by a native marine bacterium, Alcaligenes sp. strain NV06

Conjugation of aptamers and their corresponding analytes onto plasmonic nanoparticles mediates the 13 formation of nanoparticle assemblies: molecularly bound nanoclusters which cause a measurable change in the 14 colloid’s optical properties. In this paper the optimization of a surface enhanced Raman spectroscopy (SERS) 15 competitive binding assay is presented utilizing plasmonic ‘target’ and ...

Fabrication of monodisperse pure silica and core-shell nanospheres (Fe2O3@SiO2 and Fe2O3/QD@SiO2) was done in straight forward one-pot method combining sol-gel chemistry and supercritical fluids. For the core-shell materials, preformed nanoparticles stabilized in hexane were dispersed in a sol containing a silicon alkoxide, water and acetone as the solvent. The precursor solution was introduced...