نتایج جستجو برای: extract nanoparticles

تعداد نتایج: 280956  

2014
Praphulla Rao Jahnavi Rao Srinidhi Shetty

The physical and chemical methods employed in production of silver nanoparticles are expensive and the reagents used are harmful. This project deals with the production of silver nanoparticles using biological methods. Silver nitrate is reduced by biological extracts. Thus, the production is mainly dependent on the reducing ability of the plant used. Lemon extract has been used for the synthesi...

Indonesia has various beneficial plants species which has not been specifically cultivated yet. One of those plants was Blimbi (Averrhoa bilimbi L.). Blimbi had potential on Staphylococcus aureus and Escherichia coli bacteria as the antibacterial. Its nanoparticle became a carrier which dissolved, trapped, encapsulated, or attached the chemical preparation inside its matrix. This study aimed to...

2013
Kantha D Arunachalam Sathesh Kumar Annamalai

The exploitation of various plant materials for the biosynthesis of nanoparticles is considered a green technology as it does not involve any harmful chemicals. The aim of this study was to develop a simple biological method for the synthesis of silver and gold nanoparticles using Chrysopogon zizanioides. To exploit various plant materials for the biosynthesis of nanoparticles was considered a ...

2011
Santosh V. Nalage Sidhanath V. Bhosale Sheshanath V. Bhosale

We demonstrate new method for the synthesis of gold and silver nanoparticles from pineapple extract. Furthermore, we have studied interactions between nanoparticles (gold and silver) with aminoglycosides such as Kanamycin A, Neomycin. Both nanoparticles were prepared by reducing AuCl4 and AgNO3 using pineapple extract, kanamycin A and neomycin as both reducing and stabilizing agents respectivel...

2016
K. GOVINDARAJU NAVEEN PRASAD

Phytochemical based synthesis of palladium nanoparticles by bioreduction of medicinally potent plant extract Coleus amboinicus is investigated in the present study. Treatment of palladium chloride with Coleus amboinicus extract resulted in the formation of palladium nanoparticles. The formation of palladium nanoparticles were confirmed using UV-vis, FTIR, TEM and XRD. Polyols such as flavones, ...

2013
Kantha D Arunachalam Sathesh Kumar Annamalai Shanmugasundaram Hari

In this experiment, green-synthesized silver and gold nanoparticles were produced rapidly by treating silver and gold ions with an extract of Memecylon umbellatum leaf. The reaction process was simple and easy to handle, and was monitored using ultraviolet-visible spectroscopy. The effect of the phytochemicals present in M. umbellatum, including saponins, phenolic compounds, phytosterols, and q...

2012
RAM PRASAD SATYANARAYANA SWAMY SURANJIT PRASAD AJIT VARMA

The antimicrobial activity of silver nanoparticles with the clinically important microbes is a major area of research in the field of nanobiotechnology. Syzgium cumini (L.) is used as medicinal plant for anti-diabetic property. The leaves and bark are used for controlling blood pressure and gingivitis. In this present study, we have synthesized silver nanoparticles using Syzygium cumini leaf ex...

Journal: :Indian journal of biochemistry & biophysics 2010
Padma S Vankar Dhara Bajpai

Biosynthesis of gold nanoparticles has emerged as an important area in nanotechnology and biotechnology due to growing need to develop environmentally benign technologies. Generally, nanoparticles are prepared by a variety of chemical methods which are not environmentally friendly. In the present study, we report a rapid and convenient method to reductively prepare gold nanoparticles from auric...

2017
Ji Su Park Eun-Young Ahn Youmie Park

Mangosteen (Garcinia mangostana) pericarp waste extract was used to synthesize gold and silver nanoparticles by a green strategy. The extract was both a reducing and stabilizing agent during synthesis. Phytochemical screening of the extract was conducted to obtain information regarding the presence/absence of primary and secondary metabolites in the extract. The in vitro antioxidant activity re...

2016
Md. Mamun Or Rashid Jannatul Ferdous Sujan Banik Md. Rabiul Islam A.H.M. Mazbah Uddin Fataha Nur Robel

BACKGROUND Present study has been conducted to know the anthelmintic activity of polyaniline coated silver nanoparticles (AgNPs) synthesized from Momordica charantia fruit extract. METHODS By reduction of AgNO3 in presence of NaBH4, silver nanoparticles were prepared. After mixing silver nanoparticles and extracts, coating was given on nanoparticles using polyaniline. Prepared nanoparticles w...

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