نتایج جستجو برای: nanoparticles of silver

تعداد نتایج: 21182698  

Objective: Oxidative stress is a leading factor in the development of silver nanoparticle-induced toxicity. This study evaluated the effects of oral prescription of different doses of silver nanoparticles and propolis on lipid peroxidation in male Wistar rats. Materials and Methods: The male wistar rats were randomly divided into four groups. Control group and three different treatment groups ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
mahdi kamali sayed ali akbar ghorashi mohammad ali asadollahi,

a method for the controllable synthesis of silver nanoparticles based on a complexing agent method was developed. citric acid was used as a complexing agent. the effect of ph (1.6 to 5.17) on the size and net height (as obtained from xrd analyses) of silver nanoparticles was investigated. the nanoparticles (10 to 40 nm) were characterized using xrd, tem, sem, edx, uv-vis spectroscopy and tg/dtg...

Journal: :international journal of advanced biological and biomedical research 2014
farideh ghadamgahi masome mehraban sang atash gholamhosein shahidi bonjar

in this research, the inhibitory effects of silver nanoparticles and zinc oxide nanoparticles,  in vitro, on disease stone fruits bacterial canker caused by pseudomonas syrigae pv. syringae and disease bacterial blight caused by xanthomonas arboricola pv. juglandis, were studied. different concentrations of nanoparticles were prepared on mueller hinton agar medium in two different ways in a com...

Background and Aim: In the present studysynthesis of silver nanoparticles and the assessment of its toxicity against the proliferation of osteosarcoma cells were done. Materials and Methods: To confirm the production of silver nanoparticles, UV-Visible spectroscopy, X-ray diffraction, and TEM analyses were performed. MTT assay was used to evaluate the toxicity of nanoparticles against cancer c...

2012
GUOQIANG ZHOU WENYING WANG

A simple and inexpensive, single step synthesis of silver nanoparticles was achieved using sodium citrate both as a reducing and capping agent. Silver nanoparticles were synthesized by injecting sodium citrate solution into the solution of silver nitrate at high temperature. The synthetic process was carried out in aqueous solution, making the method versatile and ecofriendly. The synthesized s...

2014
Shahnaz Majeed Anima Nanda Kathirvel Thirunavukarasu

In this paper we have reported the biosynthesis of silver nanoparticles using Penicillium sp. was isolated from the soil sample collected from Pallavakam beach of Chennai, Tamil Nadu India. When the fungal biomass was challenged with 1mM Silver nitrate (AgNO3) results in the change of solution color in to dark brown shows the formation of Silver nanoparticles(SNP).These Silver nanoparticles wer...

The review article summarizes the applications of silver nanoparticles for diverse sectors. Over the decades, nanoparticles used as dignified metals such as silver exhibited distinctive characteristics basically correlated to chemical, physical and biological property of counterparts having bulkiness. Numerous studies reported that Nanoparticles of about 100nm diameter play a crucial role in wi...

2014
W. Wonsawat

Bioreduction of silver nanoparticles (AgNPs) from silver ions (Ag) using water extract of Thai basil leaf was successfully carried out. The basil leaf extract provided a reducing agent and stabilizing agent for a synthesis of metal nanoparticles. Silver nanoparticles received from cut and uncut basil leaf was compared. The resulting silver nanoparticles are characterized by UV-Vis spectroscopy....

2012
Soon Wei Chook Chin Hua Chia Sarani Zakaria Mohd Khan Ayob Kah Leong Chee Nay Ming Huang Hui Min Neoh Hong Ngee Lim Rahman Jamal RahaMohdFadhilRajaAbdul Rahman

Silver nanoparticles and silver-graphene oxide nanocomposites were fabricated using a rapid and green microwave irradiation synthesis method. Silver nanoparticles with narrow size distribution were formed under microwave irradiation for both samples. The silver nanoparticles were distributed randomly on the surface of graphene oxide. The Fourier transform infrared and thermogravimetry analysis ...

2014
Jae Woong Han Sangiliyandi Gurunathan Jae-Kyo Jeong Yun-Jung Choi Deug-Nam Kwon Jin-Ki Park Jin-Hoi Kim

The goal of the present study was to investigate the toxicity of biologically prepared small size of silver nanoparticles in human lung epithelial adenocarcinoma cells A549. Herein, we describe a facile method for the synthesis of silver nanoparticles by treating the supernatant from a culture of Escherichia coli with silver nitrate. The formation of silver nanoparticles was characterized using...

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