نتایج جستجو برای: : Silver nanoparticle

تعداد نتایج: 74001  

2008
Seok-Ho Ji Su-Bu Han An-Sook Kim Seong-Gon Kim

The biological activity of the silver nanoparticles was tested in the primary cultured human periodontal ligament cells. Two types of silver nanoparticles (colloidal silver and plasma silver) were included in this study and MTT assay, cytotoxicity assay, and apoptosis assay were done. In results, the colloidal silver showed higher inhibition on the cellular proliferation than the plasma silver ...

2012
GnanaDhas GnanaJobitha Gurusamy Annadurai Chellapandian Kannan

An eco-friendly green mediated synthesis of inorganic nanoparticle is a fast growing research in the limb of nanotechnology. This study reports the synthesis of silver Nanoparticle by using commercially available spice Elettaria cardamomom without the use of toxic chemicals. Visually, the formation of silver Nanoparticle was confirmed by observing the colour changes from pale yellow to dark bro...

2009
R.NITHYA R.RAGUNATHAN

Microbial silver nanoparticles have been known to have bactericidal effects but the antimicrobial mechanism have not been clearly revealed. The use of microorganisms in the synthesis of nanoparticles emerges as an ecofriendly and exciting approach. In this study biosynthesis of silver nanoparticles using Pleurotus sajor caju fungi and its antimicrobial studies has been reported. The extra cellu...

2017

The present industrial sector related to textile industry, medicine product industry, house hold industry have enormously spread the use of Silver nanoparticle. Varieties of teratogenic effects are executed due to silver nanoparticle among which one of the important is skeletal dysmorphology. The discovery of the new facts can be compared with the quotes from some studies [1] reveals that there...

2014
Weiping Zhou Anming Hu Shi Bai Ying Ma Quanshuang Su

We report here a simple and innovative method to prepare large-scale silver nanoparticle films based on the controlled coffee ring effect. It is demonstrated that the films can be used as surface-enhanced Raman scattering probes to detect low-concentration medicines. Silver nanoparticles with the average size about 70 nm were prepared by reduction of silver nitride. In our experiment, the coffe...

2014
Mahmoud M Ahmad Essam A Abdel-Wahab A A El-Maaref Mohammed Rawway Essam R Shaaban

The irradiation effect of argon, oxygen glow discharge plasma, and mercury lamp on silver and agar/silver nanoparticle samples is studied. The irradiation time dependence of the synthesized silver and agar/silver nanoparticle absorption spectra and their antibacterial effect are studied and compared. In the agar/silver nanoparticle sample, as the irradiation time of argon glow discharge plasma ...

2016
K. V. RAdHA

In this work, the antimicrobial property of nanocomposite prepared by loading of silver nanoparticle onto activated carbon (AgNP-AC) was studied. The silver nanoparticles were synthesized biologically from the culture Enterobacter aerogenes and loaded onto the activated carbon. The nanoparticle and nanocomposite were characterized by UV-vis, scanning electron microscopy and X-ray diffraction st...

Journal: :iranian journal of pediatric hematology and oncology 0
فرحناز عطایی farahnaz ataei department of biologoy, falavarjan branch, islamic azad university, isfahan, iran.

background: investigation of toxicity of silver nanoparticle, especxially blood toxicity, is necessary because this nanoparticle is used a lot in diffrerent parts of life and invironment. the aime of this is evaluation the effects of silver nanoparticles with different concentrations on blood cells pregnant wistar rats. materials and methods: in this case control study, 30 pregnant rat were div...

2003
Saikat Mandal Debabrata Rautaray Murali Sastry

In the work reported in this paper, we demonstrate that Ag–Keggin ion colloidal particles are excellent templates for the synthesis of organized assemblies of silver nanoparticles, wherein the Keggin ion host plays the role of a UV-switchable reducing agent. More specifically, we investigate the formation of aqueous colloidal particles of Ag ions complexed with phosphotungstate (PW12O40) 32 Keg...

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2012
aminreza noghrehabadi mohammad ghalambaz mehdi ghalambaz afshin ghanbarzadeh

in the present paper, the flow and heat transfer of two types of nanofluids, namely, silver-water and silicon dioxide-water, were theoretically analyzed over an isothermal continues stretching sheet. to this purpose, the governing partial differential equations were converted to a set of nonlinear differential equations using similarity transforms and were then analytically solved. it was found...

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