نتایج جستجو برای: green synthesis of silver nanoparticles

تعداد نتایج: 21223070  

Journal: :Nanoscale 2014
S Bettini R Pagano L Valli G Giancane

A completely green synthesis protocol has been adopted to obtain silver nanoaggregates capped by the natural compound (1E, 6E)-1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-diene), also known as curcumin. The synthesis has been monitored by infrared, Raman, visible and fluorescence spectroscopies. Characterization confirms that curcumin reduces and caps the nanoparticles, and such a pro...

ریاحی نوری, نسترن, صراف مأموری, رسول, موچانی, پرستو,

In this study, the parameters affecting the synthesis of silver nanoparticles were optimized by green chemical reduction method to make a conductive pattern. The raw materials used in this study, include silver nitrate as a source of silver ions, polyvinylpyrrolidone as surface stabilizer, and glucose as the reducing agent. Effective parameters were investigated by Taguchi statistical design,...

Journal: :international journal of nanoscience and nanotechnology 2014
s. shams sh. pourseyedi h. hashemipour rafsanjani

nano world daily. in this paper the lens culinaris seed extract was assessed for thegreen synthesis of silvernanoparticlesat temperature of 25◦c. the nanoparticles were characterized using inductively coupledplasma spectrometry (icp), x-ray diffraction (xrd) and transmission electron microscopy (tem). thenthe antimicrobial activities of these nanoparticles were investigated. p. aeruginosa and s...

Biosynthesis of metal nanoparticles using plant extract has received much attention due to its eco-friendly nature. The present study elucidates the green synthesize of Silver nanoparticles (AgNPs) from methanolic extract of Coleus Vettiveroids –an endemic species. The synthesis of AgNPs was confirmed by UV-visible spectrometry at 416 nm. Further, biosynthesized nanoparticles were characterized...

Journal: :Green and Sustainable Chemistry 2016

2011
Tamizhamudu Elavazhagan Kantha D Arunachalam

We used an aqueous leaf extract of Memecylon edule (Melastomataceae) to synthesize silver and gold nanoparticles. To our knowledge, this is the first report where M. edule leaf broth was found to be a suitable plant source for the green synthesis of silver and gold nanoparticles. On treatment of aqueous solutions of silver nitrate and chloroauric acid with M. edule leaf extract, stable silver a...

Background: Silver nanoparticles (AgNPs) are among the most effective antimicrobial agents that are used in the medicine and pharmaceutics. During the past decades, metal nanoparticles synthesis through application of the biological methods has increasingly been used, as the biologically synthesized particles are mostly non-toxic as well as effective. Objectives: The main goal for undertaking t...

Journal: :Oriental journal of chemistry 2023

The manufacturing of silver nanoparticles (AgNPs) is now safer, more economical, nontoxic, and environmentally benign thanks to the extraction Cirsium japonicum. extracts from C. japonicum worked as a stabiliser reducer. AgNP synthesis was verified by UV/vis spectroscopy. There have been studies done on production at various temperatures concentrations. Their dispersion validated high resolutio...

2014
Goutam Brahmachari Sajal Sarkar Ranjan Ghosh Soma Barman Narayan C Mandal Shyamal K Jash Bubun Banerjee Rajiv Roy

BACKGROUND Nanotechnology is now regarded as a distinct field of research in modern science and technology with multifaceted areas including biomedical applications. Among the various approaches currently available for the generation of metallic nanoparticles, biogenic synthesis is of increasing demand for the purpose of green nanotechnology. Among various natural sources, plant materials are t...

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