نتایج جستجو برای: nanoparticles of silver

تعداد نتایج: 21182698  

Journal: :jundishapur journal of microbiology 0
mohsen adeli department of chemistry, faculty of science, lorestan university, khoramabad, ir iran hasan hosainzadegan maragheh faculty of nursing and midwifery, tabriz university of medical sciences, tabriz, ir iran; maragheh faculty of nursing & midwifery, tabriz university of medical sciences, tabriz, ir iran. tel: +98-9147667729, fax: +98-4212276363 iraj pakzad department of microbiology and clinical microbiology research center, faculty of medicine, ilam university of medical sciences, ilam, ir iran fatemeh zabihi department of chemistry, faculty of science, lorestan university, khoramabad, ir iran maedee alizadeh maragheh faculty of nursing and midwifery, tabriz university of medical sciences, tabriz, ir iran fattane karimi maragheh faculty of nursing and midwifery, tabriz university of medical sciences, tabriz, ir iran

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم پایه 1391

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...

Journal: :international journal of nano dimension 0
g. narasimha applied microbiology laboratory, department of virology, sri venkateswara university, tirupati- 517502 andhra pradesh, india. a. janardhan applied microbiology laboratory, department of virology, sri venkateswara university, tirupati- 517502 andhra pradesh, india. m. alzohairy department of medical laboratories, college of applied medical sciences, qassim university, qassim, po box 6699, kingdom of saudi arabia. h. khadri department of medical laboratories, college of applied medical sciences, qassim university, qassim, po box 6699, kingdom of saudi arabia. k. mallikarjuna department of physics, sri venkateswara university, tirupati-517502 andhra pradesh, india.

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...

Journal: :nanomedicine journal 0
saghar hendiani department of microbiology, faculty of biological sciences, alzahra university, tehran, iranسازمان اصلی تایید شده: دانشگاه الزهرا (alzahra university) ahya abdi-ali department of microbiology, faculty of biological sciences, alzahra university, tehran, iranسازمان اصلی تایید شده: دانشگاه الزهرا (alzahra university) parisa mohammadi department of microbiology, faculty of biological sciences, alzahra university, tehran, iranسازمان اصلی تایید شده: دانشگاه الزهرا (alzahra university) sharmin kharrazi department of medical nanotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)

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...

Journal: :avicenna journal of medical biotechnology 0

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. ...

Journal: :international journal of health studies 0
babak negahdari1 1. dept. of medical biotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, iran. mohammad hasan shirazi2 2. dept. of pathobiology, school of public health, tehran university of medical science, tehran, iran. maryam kadkhodazadeh3 3. dept. of clinical biochemistry, shaheed beheshti university of medical sciences, tehran, iran. ziba vaise malekshahi1 solmaz sadeghi1 sara hajikhani 2

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 ...

Journal: :international journal of nano dimension 0
biuck habibi department of chemistry, faculty of science, azarbaijan shahid madani university, tabriz, 53714-161, iran houriyeh hadilou department of chemistry, faculty of science, azarbaijan shahid madani university, tabriz, 53714-161, iran saeed mollaei department of chemistry, faculty of science, azarbaijan shahid madani university, tabriz, 53714-161, iran alireza yazdinezhad department of pharmacognosy, faculty of pharmacy, zanjan university of medical sciences, zanjan, 45139-56184, iran

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...

Journal: :iranian journal of pharmaceutical research 0
hassan korbekandi geneticsand molecular biology department, school of medicine, isfahan university of medical sciences, isfahan, 81744-176, ir iran. zeynab ashari geneticsand molecular biology department, school of medicine, isfahan university of medical sciences, isfahan, 81744-176, ir iran. siavash iravani biotechnology department, faculty of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, ir iran. sajjad abbasi faculty of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, ir iran.

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...

Journal: :jundishapur journal of microbiology 0
mojtaba salouti biology research center, zanjan branch, islamic azad university, zanjan, ir iran; biology research center, zanjan branch, islamic azad university, zanjan, ir iran. tel/fax: +98-24-33424024 fatemeh mirzaei department of microbiology, faculty of sciences, zanjan branch, islamic azad university, zanjan, ir iran reza shapouri department of microbiology, faculty of sciences, zanjan branch, islamic azad university, zanjan, ir iran azam ahangari department of microbiology, faculty of sciences, zanjan branch, islamic azad university, zanjan, ir iran

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 ...

Journal: :nanomedicine research journal 0
nooshin amini department of nanochemistry, faculty of pharmaceutical chemistry, pharmaceutical sciences branch, islamic azad university, tehran, iran (iaups) gholamreza amin department of pharmacognosy, faculty of pharmacy, pharmaceutical sciences branch, islamic azad university, tehran, iran (iaups) zahra jafari azar department of pharmaceutics, faculty of pharmacy, pharmaceutical sciences branch, islamic azad university, tehran, iran (iaups)

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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