نتایج جستجو برای: green synthesis of silver nanoparticles

تعداد نتایج: 21223070  

2012
Chandan Singh Ritesh K. Baboota Pradeep K. Naik Harvinder Singh

This report presents a rapid, reproducible and a green biogenic approach for the biosynthesis of gold and silver nanoparticles using leaf extract of Dalbergia sissoo. The biomolecules present in the plant induced the reduction of Au and Ag ions from HAuCl4 and AgNO3 respectively, which resulted in the formation of Dalbergia conjugated nanoparticles. The growth of nanoparticles was monitored by ...

Background: Nanoparticles have been applied to medicine, hygiene, pharmacy and dentistry, and will bring significant advances in the prevention, diagnosis, drug delivery and treatment of disease. Green synthesis of metal nanoparticles has a very important role in nanobiotechnology, allowing production of non-toxic and eco-friendly particles.Objectives: Gr...

2015
S. Supraja P. Arumugam

Silver nanoparticles were synthesized using Cynodon dactylon leaf extract and this study demonstrates the efficacy of biologically synthesized Silver nanoparticles (AgNPs) as anticancer and antibacterial agent. Anticancer activity of the biologically synthesized silver nanoparticles was studied using HEpG-2 cell line. The AgNPs showed dose-dependent cytotoxicity against HEpG-2 cells. Antimicrob...

2012
Kamyar Shameli Mansor Bin Ahmad Seyed Davoud Jazayeri Sajjad Sedaghat Parvaneh Shabanzadeh Hossein Jahangirian Mahnaz Mahdavi Yadollah Abdollahi

The roles of green chemistry in nanotechnology and nanoscience fields are very significant in the synthesis of diverse nanomaterials. Herein, we report a green chemistry method for synthesized colloidal silver nanoparticles (Ag NPs) in polymeric media. The colloidal Ag NPs were synthesized in an aqueous solution using silver nitrate, polyethylene glycol (PEG), and β-D-glucose as a silver precur...

Journal: :international journal of bio-inorganic hybrid nanomaterials 2015
h. zahedi a. mollahosseini e. noroozian

according to circumstance of kerman sarcheshmeh cooper complex that its anode slime is mainly consisted of cu, ag, au, pb and se. in this work, recovery of silver from anode slime and subsequent synthesis of silver nanoparticles from leaching solution was made. silver was separated from anode slime by using of hno3 and hcl. x-ray fluorescence spectroscopy (xrf) was used to characterize anode sl...

2014
B K Nayak Anima Nanda

Antimicrobial resistant becomes a major factor virtually in all hospitals acquired infection may soon be untreatable; it leads to cause serious public health problem. These concerns have led to major research effort to discover alternative strategies for the treatment of bacterial infection. Nanobiotechnology is an upcoming and fast developing field with potential application for human welfare....

B. Deva Prasad Raju B. Praveen G. Narasimha, K. Mallikarjuna

In this paper we report an eco-friendly route for the synthesis of sliver nanoparticles using Agaricus bisporus (white button mushroom) extract. The synthesized silver nanoparticles were confirmed and characterized by UV-Visible spectrum of the aqueous solution containing silver ions showed a peak at 420 nm corresponding to the surface plasmon absorbance of silver nanoparticles. Transm...

Journal: :international journal of nanoscience and nanotechnology 2012
a. k. vala s. shah

recently, biosynthesis of nanoparticles has received attention due to an increasing need of developing rapid, simple and ecofriendly protocol. pathogenicity of some of the organisms and lengthy reaction are the drawbacks involved with biosynthesis. we describe a simple protocol for rapid synthesis of silver nanoparticles through biological route using a marine-derived fungus aspergillus niger. ...

2015
Sibi P Ittiyavirah Jahanara Hameed

Biosynthesis of nanoparticles incorporating the herbal extracts can potentially eliminate the toxicity problem. Green synthesis of silver nanoparticles was done by using the ethanolic extract of Alternanthera sessilis (Linn.) and Silver nitrate. The anti-parkinsonism activity of ethanolic extract of Alternanthera sessilis (Linn.) (EEAS) and its silver nanoparticles (ASAgNPs) was evaluated using...

Mahmoudi, Fariba, Mahmoudi, Farzaneh, Nourizadeh, ٍEzzat, Saie, Elaheh,

Background: Hypoglycaemic effects of Galega officinalis and  silver nanoparticles are established. In the present study, the effects of silver nanoparticles synthetized by Galega officinalis extract were investigated on gene expression of TNF-α, IL-6 and serum levels of liver enzymes in diabetes type 2. Methods: In the present study 20 male Wistar rats in 4 group(n= 5 in each group) weighing 1...

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