نتایج جستجو برای: Green Silver Nanoparticles

تعداد نتایج: 276019  

2014
Youmie Park

This review covers general information regarding the green synthesis of antibacterial silver nanoparticles. Owing to their antibacterial properties, silver nanoparticles are widely used in many areas, especially biomedical applications. In green synthesis practices, the chemical reducing agents are eliminated, and biological entities are utilized to convert silver ions to silver nanoparticles. ...

Journal: :international journal of nano dimension 0
biuck habibi department of chemistry, faculty of science, azarbaijan shahid madani university, tabriz, 53714-161, iran houriyeh hadilou department of chemistry, faculty of science, azarbaijan shahid madani university, tabriz, 53714-161, iran saeed mollaei department of chemistry, faculty of science, azarbaijan shahid madani university, tabriz, 53714-161, iran alireza yazdinezhad department of pharmacognosy, faculty of pharmacy, zanjan university of medical sciences, zanjan, 45139-56184, iran

nowadays, green chemistry and its advantages are generating interest of researchers toward ecofriendly biosynthesis of the metallic nanoparticles. in this research, a rapid, simple and green method was developed for the synthesis of silver nanoparticles using aqueous extract of prangos ferulaceae leaves. the synthesized silver nanoparticles were characterized by uv-vis spectroscopy, scanning el...

2012
M. Bhanu Prakash Subhankar Paul

In the present study, silver nanoparticles were rapidly green synthesized from AgNO3 solution using leaf extract of Vinca Roseus at room temperature. The green synthesized Silver Nanoparticles were characterized by UV–Visible absorption spectroscopy and further by analytical techniques such as, DLS, X-ray diffraction (XRD) and SEM. X-ray diffraction and Scanning Electron Microscope analysis stu...

There is a huge demand of silver nanoparticles in the global market due to their special properties and applications in different fields such as nanomedicine , dentists , nanocatalysis, nanoelectronics, textile field, waste water treatment.The major cons of top down and Bottom up methods are the synthesis processes are highly costly, time consuming and many harmful chemicals are used. To reduce...

2015
P.Udaya Sri

Illicium verum Hooker fillius or commonly called star anise is a member of Magnoliaceae. The synthesis of metal nanoparticles is a growing area for research due to its potentiality in the application and development of advanced technologies. In general, nanoparticles are synthesized by using chemical methods which are not eco-friendly. Here, we have used a fast, convenient and environment-frien...

Journal: :journal of chemical health risks 0
hashem akhlaghi department of chemistry, sabzevar branch, islamic azad university, sabzevar, iran sedighe sadat akhlaghi assistant professor, department of nephrology, shahid beheshti medical university, tehran, iran

an aqueous extract of pimpinella anisum was used for green synthesis of silver nanoparticles by bio reduction of an aqueous solution of silver nitrate. silver nanoparticles were characterized by uv–vis spectrometry, fourier transform infrared spectroscopy (ftir), x-ray diffraction (xrd) analysis, scanning electron microscopy (sem) and energy-dispersive x-ray analysis (edax). the increase in abs...

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...

2015
Srikanth Kagithoju Vikram Godishala Rama Swamy Nanna

Inspired green synthesis of metallic nanoparticles is evolving as an important branch of nanotechnology. Traditionally these are manufactured by wet chemical methods which require toxic and flammable chemicals. We report for the first time an economic and eco-friendly green synthesis of silver nanoparticles using Strychnos potatorum aqueous leaf extract from 3 mM silver nitrate solution. Nanopa...

2015
Jes Ærøe Hyllested Marta Espina Palanco Nicolai Hagen Klaus Bo Mogensen Katrin Kneipp

Chemicals typically available in plants have the capability to reduce silver and gold salts and to create silver and gold nanoparticles. We report the preparation of silver nanoparticles with sizes between 10 and 300 nm from silver nitrate using fruit extract collected from pineapples and oranges as reducing agents. The evolvement of a characteristic surface plasmon extinction spectrum in the r...

2013
Cynthia Mason Singaravelu Vivekanandhan Manjusri Misra Amar Kumar Mohanty

A novel switchgrass (Panicum virgatum) extract mediated green process was demonstrated for the synthesis of silver nanoparticles from silver nitrate solution at ambient temperature. UV-visible spectroscopic analysis indicates the rapid reduction of silver (Ag) ions by swithgrass extract. The silver nanoparticles began to form at 15 min and the reduction reaction was completed within 2 hours. Sy...

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