نتایج جستجو برای: green silver nanoparticles

تعداد نتایج: 276019  

Journal: :Natural Resources and Sustainable Development 2018

Journal: :IET nanobiotechnology 2011
Y Park Y N Hong A Weyers Y S Kim R J Linhardt

Currently, sustainability initiatives that use green chemistry to improve and/or protect our global environment are becoming focal issues in many fields of research. Instead of using toxic chemicals for the reduction and stabilisation of metallic nanoparticles, the use of various biological entities has received considerable attention in the field of nanobiotechnology. Among the many possible n...

2014
Galina F Prozorova Alexsandr S Pozdnyakov Nadezhda P Kuznetsova Svetlana A Korzhova Artem I Emel’yanov Tamara G Ermakova Tat’yana V Fadeeva Larisa M Sosedova

New water-soluble nontoxic nanocomposites of nanosized silver particles in a polymer matrix were synthesized by a green chemistry method. Nontoxic poly(1-vinyl-1,2,4-triazole) was used as a stabilizing precursor agent in aqueous medium. Glucose and dimethyl sulfoxide were used as the silver ion-reducing agents to yield silver nanoparticles 2-26 nm and 2-8 nm in size, respectively. The nanocompo...

Journal: :Molecules 2016
Klebson Silva Santos Andriele Mendonça Barbosa Luiz Pereira da Costa Malone Santos Pinheiro Maria Beatriz Prior Pinto Oliveira Francine Ferreira Padilha

Bacterial resistance is an emerging public health issue that is disseminated worldwide. Silver nanocomposite can be an alternative strategy to avoid Gram-positive and Gram-negative bacteria growth, including multidrug-resistant strains. In the present study a silver nanocomposite was synthesized, using a new green chemistry process, by the addition of silver nitrate (1.10-3 mol·L-1) into a ferm...

2015
Mohamed A. Mohamed

A simple green method for the synthesis of silver nanoparticles (AgNPs) using the natural isolated orsellinic acid compound has been investigated for the first time. The present work describes a one-step functionalization of AgNPs using orsellinic acid as a reducing agent to convert Ag+ cations to AgNPs. This process eliminates the use of external toxic chemical reducing agents to provide a com...

2017
Azam Chahardoli Naser Karimi Ali Fattahi

The biogenic synthesis of metal nanomaterial offers an environmentally benign alternative to the traditional chemical synthesis routes. In the present study, the green synthesis of silver nanoparticles (AgNPs) from aqueous solution of silver nitrate (AgNO3) by using Nigella arvensis L. seed powder extract (NSPE) has been reported. AgNPs were characterized by UV-vis absorption spectroscopy with ...

Journal: :International Journal of Current Pharmaceutical Research 2018

2015
Rouhollah Heydari Marzieh Rashidipour

A green synthetic approach by using oak fruit hull (Jaft) extract for preparation of silver nanoparticles (AgNPs) was developed and optimized. Parameters affecting the synthesis of AgNPs, such as temperature, extract pH, and concentration of extract (ratio of plant sample to extraction solvent), were investigated and optimized. Optimum conditions for the synthesis of silver nanoparticles are as...

Journal: :Green and Sustainable Chemistry 2016

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