نتایج جستجو برای: green synthesis of silver nanoparticles

تعداد نتایج: 21223070  

The green synthesis of metallic nanoparticles is an active research area in nanotechnology. In the present study, antioxidant potential, total reducing capacity and silver nanoparticles (Ag NPs) synthetic potential of methanolic leaf extracts of seven plant species were evaluated and compared. Antioxidant capacity, expressed as µmol Trolox equivalents g-1 DW (µmol TE g-1 DW), ranged from 116.0 ...

Nowadays green synthesis of metal nanoparticles is a developing area of research. In this study, titanium dioxide nanoparticles were biosynthesized using an aqueous solution of Echinacea purpurea herba extract as a bioreductant. This is novel and interesting method for synthesis of TiO2 nanoparticles. The prepared titanium dioxide nanoparticles were characterized using ultraviolet–visible spect...

Developing reliable and eco-friendly processes for the synthesis of metallic nanoparticles is an essential step in the field of application of nanotechnology .Using natural factories such as biological systems is a way of developing such processes. Nowadays, the synthesis of silver nanoparticles is very common due to its numerous applications in different fields. The synthesis of these nanopart...

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. ...

2014
K. ROY C. K. SARKAR C. K. GHOSH

The green synthesis route, in comparison to the conventional chemical and physical procedures, is an easy and eco-friendly alternative to synthesize metallic nanoparticles. Here, we report a cost-effective, clean and fast bio-process to synthesize Ag nanoparticles after reduction of Ag + using apple (Malus domestica) fruit extract. The formation of silver nanoparticles was first examined by UV-...

Journal: :nanomedicine journal 0
meysam soltani nejad department of plant pathology, college of agriculture, shahid bahonar university of kerman, iranسازمان اصلی تایید شده: دانشگاه شهید باهنر (shahid bahonar university) mehrdad khatami department of biotechnology, college of agriculture, shahid bahonar university of kerman, iranسازمان اصلی تایید شده: دانشگاه شهید باهنر (shahid bahonar university) gholam hosein shahidi bonjar department of plant pathology, college of agriculture, shahid bahonar university of kerman, iranسازمان اصلی تایید شده: دانشگاه شهید باهنر (shahid bahonar university)

objective(s): the development of reliable and ecofriendly process for the synthesis of nano-metals is an important aspect in the field of nanotechnology. nano-metals are a special group of materials with broad area of applications. materials and methods: in this study, extracellular synthesis of silver nanoparticles (snps) performed by use of the gram positive soil streptomycetes. streptomycete...

Journal: :International Journal of Chemical and Process Engineering Research 2019

Journal: :nanomedicine journal 0
maryam moazeni invasive fungi research centre, department of medical mycology & parasitology, school of medicine,mazandaran, university of medical sciences, sari, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مازندران (mazandaran university of medical sciences) ahmad reza shahverdi department of pharmaceutical biotechnology, faculty of pharmacy and biotechnology research center, tehranuniversity of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) mojtaba nabili invasive fungi research centre, department of medical mycology & parasitology, school of medicine,mazandaran, university of medical sciences, sari, iran, social security organization, golestan, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مازندران (mazandaran university of medical sciences) fatemeh noorbakhsh department of biology, islamic azad university, varamin-pishva branch, varamin, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) sassan rezaie department of medical biotechnology, school of advanced technologies in medicine, tehran university ofmedical sciences, tehran, iran department of medical mycology & parasitology, school of public health, tehran university of medicalsciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)

objective(s): the enzymatic activity of fungi has recently inspired the scientists with re-explore the fungi as potential biofactories rather than the causing agents of humans and plants infections. in very recent years, fungi are considered as worthy, applicable and available candidates for synthesis of smaller gold, silver and other nano-sized particles.  materials and methods: a standard str...

Journal: :Iranian biomedical journal 2012
Maryam Moazeni Niloofar Rashidi Ahmad R Shahverdi Fatemeh Noorbakhsh Sassan Rezaie

BACKGROUND To develop a new green approach for biosynthesis of silver nanoparticles, myconanotechnology has been represented as a novel field of study in nanotechnology. In this study, we have reported the extracellular synthesis of highly stable silver nanoparticles using three species of dermatophytes: Trichophyton rubrum, Trichophyton mentagrophytes and Microsporum canis. METHODS Clinical ...

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