We report the preparation of a new type of nanocomposite containing cobalt and silver nanoparticles organized in parallel layers with a well controlled separation. This arrangement allows the observation of an enhanced low-frequency Raman signal at the vibration frequency of cobalt nanoparticles excited through the surface plasmons of silver nanoparticles. Numerical simulations of the electric ...

ABSTRACTObjective(s): Silver-cobalt nanoparticles have anti-fungal properties and are used in medicine. In the present study, the effect of silver-cobalt nanoparticles on serum levels of T3 and T4 hormones was investigated. Silver-cobalt nanoparticles were synthesized by chemical reduction.Methods: In this experimental study, 28 male adult Wistar rats (approximately 180-220 gr...

Objective(s): This study aimed to compare impacts of silver nanoparticles and silver cobalt nanoparticles on the hepatic function tests and changes in liver tissues in adult male rats.Materials and Methods: This study was conducted on 49 adult male Wistar rats, each weighing approximately 180-220 gr. The rats were randomly assigned to seven groups of seven including one control group and six ex...

Nanocomposites are formed by joining two or more materials, at least one of which must have a size in the nanometer range (1 nm -100 nm). In this study, cobalt ferrite-silver nanocomposite was prepared with green synthesis approach. The aim to combine magnetic properties cobalt-ferrite nanoparticles both antimicrobial and conductivity silver nanoparticles. Thus, material can be used for biologi...

Silver-cobalt nanoparticles are used in medicine. In this study, the effects of silver-cobalt nanoparticles on functional tests and liver tissue changes in adult male rats were investigated. 28 adult male Wistar rats weighing 180-220 g were divided into 4 groups of 7. Control group, Experimental group1 received 25mg / kg of silver-cobalt nanoparticles (AgCo NPs) in which silver nanoparticle (Ag...

the structural and electrical properties of polyaniline-cobalt sulphate nanocomposite prepared by chemical method.polyaniline-cobalt sulphate nanocomposites were synthesized by the cobalt sulphate and ammonium persulphate and aniline.this paper reports on chemical technique using for synthesis of cobalt nanoparticles in the composite bridge is aniline. electrical conductivity of polyaniline wit...

Cobalt oxide (Co3O4) nanoparticles were successfully prepared by thermal decomposition of cobalt hydroxide synthesized from cobalt acetate, ammonium hydroxide and 10% glycerol. The cobalt oxide nanoparticles calcined at 450 °C were characterized by using XRD. The XRD confirms the crystallinity and crystal structure of the sample. It also shows that the diffraction peak are broadened which revea...

Green synthesis of nanomaterials endeavors to reduce the use high energy methods with those that may include lower temperatures and pressures, natural products, bottom-up self-assembly. Here we describe generation metal-organic biohybrids (MOBs) nanoscale features synthesized at physiological (37°C) room temperature (25°C). These MOBs utilized naturally occurring amino acid dimer cystine as bio...

Silica nanoparticles were directly coated with cobalt hydroxide by homogeneous precipitation of slowly decomposing urea in cobalt nitrate solution. The cobalt hydroxide was amorphous, and its morphology was nanoflower-like. The BET (Brunauer-Emmett-Teller) surface area of the core-shell composite was 221 m²/g. Moreover, the possible formation procedure is proposed: the electropositive cobalt io...