نتایج جستجو برای: nanoparticles of silver
تعداد نتایج: 21182698 فیلتر نتایج به سال:
background silver has been used from ancient times by humans, and recently nanoparticles of silver have been used in many aspects of human life including as a potent antibacterial agent. objectives in the current study a completely green method to prepare silver nanoparticles is reported. two types of starches (potato and corn starches) were used to produce and stabilize silver nanoparticles. a...
a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...
the development of the eco friendly procedures makes nanoparticles as the rapidly growing field of nanotechnology. amongst, the silver nanoparticles have become prominent in the field of medicine to their peculiar antimicrobial properties. in the present study we suggest an eco friendly procedure of extracellular synthesis of silver nanoparticles with an average sizes of 5-50nm using an actinom...
objectives:biofilms are communities of bacteria attached to surfaces through an external polymeric substances matrix. in the meantime, acinetobacterbaumannii is the predominant species related to nosocomial infections. in the present study, the effect of silver nanoparticles alone and in combination with biocides and imipenem against planktonic and biofilms of a. baumannii was assessed. materi...
many reports have been published about the biogenesis of silver nanoparticles using several plant extracts such as pelargonium graveolens (p.graveolens- geranium) and azadirachta indica (neem) but the capacity of their natural reducing constituents to form silver nanoparticles has not yet been studied. in this research the synthesis of silver nanoparticles using geraniol has been investigated. ...
background: according to the recent studies, the antibacterial activities of silver nanoparticles (ag-nps) were studied on gram-positive staphylococcus aureus and gram-negative escherichia coli. in this study antibacterial effect of silver nanoparticles that used for coating textiles, on e.coli and s.aureus was investigated. methods: silver nanoparticles were coated on textile fabric by corona ...
nowadays, green chemistry and its advantages are generating interest of researchers toward ecofriendly biosynthesis of the metallic nanoparticles. in this research, a rapid, simple and green method was developed for the synthesis of silver nanoparticles using aqueous extract of prangos ferulaceae leaves. the synthesized silver nanoparticles were characterized by uv-vis spectroscopy, scanning el...
silver nanoparticles are increasingly used in various fields of biotechnology and applications in the medicine. objectives of this study were optimization of production of silver nanoparticles using biotransformations by fusarium oxysporum, and a further study on the location of nanoparticles synthesis in this microorganism. the reaction mixture contained the following ingredients (final concen...
conclusions the synergistic effect was found on the healing of infected wounds caused by s. aureus by using an mbp-1 and silver nanoparticles combination in a mouse model. results the mic and mbc of mbp-1 were found to be 0.6 and 0.7 mg/ml, respectively. mic and mbc of silver nanoparticles were determined to be 6.25 and 12.5 mg/l, respectively. mic and mbc of the silver nanoparticles and mbp-1 ...
objective(s): nowadays, nanoparticles bio production, considering their performance in medicine and biological science, is increasing. green synthesis of metal nanoparticles using organisms has emerged as a nontoxic and ecofriendly method for synthesis of metal nanoparticles the objectives of this study were the production of silver nanoparticles using avena sativa l. extract and optimization o...
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