نتایج جستجو برای: green silver nanoparticles

تعداد نتایج: 276019  

This research was done to investigate the effects of Nano-iron spray, the chemical synthesis of silver nanoparticles and the green synthesis of silver nanoparticles on chamomile plant( Tanacetum parthenium). It was done in the form of a completely random factorial design with three replications in the greenhouse of the agricultural college of Zabol university. The treatments included the first ...

Journal: :international journal of nanoscience and nanotechnology 2008
anal k. jha k. prasad and a. r. kulkarni

a green low-cost and reproducible yeast mediated synthesis of silver nanoparticles is reported. the synthesis is performed at room temperature. x-ray and transmission electron microscopy analyses are performed to ascertain the formation of ag nanoparticles. nanoparticles almost spherical in shape having a size of 6-20 nm are found.

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...

Journal: :Molecules 2017
Elias E Elemike Omolola E Fayemi Anthony C Ekennia Damian C Onwudiwe Eno E Ebenso

Synthesis of metallic and semiconductor nanoparticles through physical and chemical routes has been extensively reported. However, green synthesized metal nanoparticles are currently in the limelight due to the simplicity, cost-effectiveness and eco-friendliness of their synthesis. This study explored the use of aqueous leaf extract of Costus afer in the synthesis of silver nanoparticles (CA-Ag...

2012
Aruna Jyothi Kora Sashidhar Rao Beedu Arunachalam Jayaraman

BACKGROUND Gum ghatti is a proteinaceous edible, exudate tree gum of India and is also used in traditional medicine. A facile and ecofriendly green method has been developed for the synthesis of silver nanoparticles from silver nitrate using gum ghatti (Anogeissus latifolia) as a reducing and stabilizing agent. The influence of concentration of gum and reaction time on the synthesis of nanopart...

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...

2014
Kanniah Paulkumar Gnanadhas Gnanajobitha Mahendran Vanaja Shanmugam Rajeshkumar Chelladurai Malarkodi Kannaiyan Pandian Gurusamy Annadurai

Utilization of biological materials in synthesis of nanoparticles is one of the hottest topics in modern nanoscience and nanotechnology. In the present investigation, the silver nanoparticles were synthesized by using the leaf and stem extract of Piper nigrum. The synthesized nanoparticle was characterized by UV-vis spectroscopy, X-ray diffraction (XRD), scanning electron microscope (SEM), tran...

Objective(s): Today, nanotechnology is growing rapidly due to its high application in science and industry. Particularly in recent years, the synthesis of green nanoparticles has been of great interest with plant extracts. It is a simple, inexpensive and environmentally friendly method. The possibility of synthesizing nanoparticles from vegetable wastes has been investigated in this article. <b...

Journal: :Journal of colloid and interface science 2015
Mahmoud Nasrollahzadeh S Mohammad Sajadi Ferydon Babaei Mehdi Maham

During this study, we report the green synthesis of silver nanoparticles (Ag NPs) using Euphorbia helioscopia Linn leaf extract for the synthesis of propargylamines. Also, the structural and optical properties are studied. The synthesized nanoparticles are characterized by TEM, XRD, FT-IR and UV-visible techniques. UV-visible studies show an absorption band at 440 nm due to surface plasmon reso...

2013
Siavash Iravani Behzad Zolfaghari

Recently, development of reliable experimental protocols for synthesis of metal nanoparticles with desired morphologies and sizes has become a major focus of researchers. 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 production of silver nanoparticles using Pinus eld...

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