نتایج جستجو برای: green synthesis of silver nanoparticles

تعداد نتایج: 21223070  

2016
S. Surya G. Dinesh Kumar R. Rajakumar

Silver nanoparticles (SNPs) exhibit magnificent applications in medicine as antimicrobial agent. The use of different plant parts for the synthesis of nanoparticles is considered as a green technology. This technology is one of the best eco-friendly method and does not gives any harmful effect. The present study deals with the flower extract of medicinal plant Hibiscus rosa-sinensis and to eval...

Journal: :jundishapur journal of natural pharmaceutical products 0
hassan korbekandi department of genetics & molecular biology, school of medicine, isfahan university of medical sciences, ir iran gholamreza asghari isfahan pharmaceutical sciences research center, school of pharmacy, isfahan university of medical sciences, ir iran susan sadat jalayer department of biotechnology, karaj payam noor university, ir iran +98-3117922644, [email protected]; department of biotechnology, karaj payam noor university, ir iran +98-3117922644, [email protected] maryam sadat jalayer department of science, tarbiat modares university, ir iran maedeh bandegani department of biotechnology, karaj payam noor university, ir iran +98-3117922644, [email protected]

background the production of nanoparticles using a biosystem is considered green chemistry. application of plant extracts as a biological process has been proven to be suitable for synthesis of nanoparticles. objectives this study designed in order to evaluate the production of silver nanoparticles using juglans regia leaf extract and to compare the outcome of different preparation methods of p...

2013
Patrick V. Quelemes Felipe B. Araruna Bruna E. F. de Faria Selma A. S. Kuckelhaus Durcilene A. da Silva Ronaldo Z. Mendonça Carla Eiras Maria José dos S. Soares José Roberto S. A. Leite

The present study describes the development of a green synthesis of silver nanoparticles reduced and stabilized by exuded gum from Anacardium occidentale L. and evaluates in vitro their antibacterial and cytotoxic activities. Characterization of cashew gum-based silver nanoparticles (AgNPs) was carried out based on UV-Vis spectroscopy, transmission electron microscopy and dynamic light scatteri...

G.P. Satsangi J.N. Shrivastava, Kalpana Kanchan S. Gupta

Interaction of Chrysosporium sps. and Aspergillus sps. with aqueous AgNO3 was investigated for synthesis of silver nanoparticles. Biological reduction and extracellular synthesis of silver nanoparticles in 28 hour at 270C and pH 5.6 was done. The nanometallic dispersion was characterized by surface plasmon absorbance measuring at 424 – 530 nm for Ag nanop...

The aim of present study is to determine the content of some phytochemicals in stem and leaf extracts of the medicinal plant of Glycyrrhiza glabra and design a green method for biosynthesis of silver nanoparticles by these extracts as stabilizers and bioreducers. The properties of the synthesized silver nanoparticles (AgNPs) were monitored by using Ultraviolet-Visible absorption spectroscopy (U...

2013
M. Jannathul Firdhouse P. Lalitha

Green synthesis of silver nanoparticles was carried out using the aqueous extract of Alternanthera sessilis under various experimental conditions. The aqueous extract of Alternanthera sessilis showed significant potential for the quick reduction of silver ions. The synthesized silver nanoparticles were characterized with UV-visible absorption spectrophotometer, XRD, SEM, and FTIR analysis. The ...

2015
Anima Nanda M. Lakshmipathy Devan Elumalai P. K. Kaleena B. K. Nayak

Microbe mediated synthesis of silver nanoparticles (AgNPs) constitutes a reliable, eco-friendly approach ameliorating green-chemistry principles. In this study, stable silver nanoparticles were synthesized by exposing aqueous silver ions to extracellular exudates of B. subtilis A1 under optimized laboratory conditions. The synthesized nanoparticles were characterized by spectroscopic and micros...

G.P. Satsangi J.N. Shrivastava, Kalpana Kanchan S. Gupta

Interaction of Chrysosporium sps. and Aspergillus sps. with aqueous AgNO3 was investigated for synthesis of silver nanoparticles. Biological reduction and extracellular synthesis of silver nanoparticles in 28 hour at 270C and pH 5.6 was done. The nanometallic dispersion was characterized by surface plasmon absorbance measuring at 424 – 530 nm for Ag nanop...

2017
Daniela Manno

Silver nanoparticles were obtained via totally green synthesis from silver nitrate using glucose as reducing agent and sucralose as capping agent. Physico-chemical characterization of AgNPs was performed by UV-Visible absorption and transmission electron microscopy (TEM) in order to correlate biological/toxicological responses with AgNPs features. A detailed study of silver nanoparticles (AgNPs...

Journal: :Molecules 2015
Parisa Ghorbani Mozhgan Soltani Masoud Homayouni-Tabrizi Farideh Namvar Susan Azizi Rosfarizan Mohammad Amin Boroumand Moghaddam

The development of reliable and ecofriendly approaches for the production of nanomaterials is a significant aspect of nanotechnology nowadays. One of the most important methods, which shows enormous potential, is based on the green synthesis of nanoparticles using plant extract. In this paper, we aimed to develop a rapid, environmentally friendly process for the synthesis silver nanoparticles u...

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