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...

Pepper anthracnose caused by Colletotrichum species is one of the most important limiting factors for pepper production in Korea, its management being strongly dependent on chemicals. The aim of this work was to evaluate the possibilities of using silver nanoparticles instead of commercial fungicides. In this study, we evaluated the effect of silver nanoparticles against pepper anthracnose unde...

Controllable silver nanoparticles were developed by a green approach using extracts of both leaves and bark of Limonia acidissima tree. Due to the presence of phytochemical compounds in L. acidissima leaves and bark; such as saponins, phenolic compounds, phytosterols, and quinines present in extracts act as reductants, hence the silver nanoparticles were easily produced under mild conditions. T...

Silver is composed of a large percentage of silver oxide due to their large ratio of surface to bulk silver atoms. Silver nanoparticles have been a potent antibacterial, antifungal, anti-viral and anti-inflammatory agent. A simple, eco-friendly, inexpensive biosynthetic method was employed to synthesize silver nanoparticles.  The present study aimed at the comparative study of silver nanopartic...

green synthesis of nanoparticles, as fundamental building blocks of nanotechnology, has recently attracted considerable attention. silver nanoparticles have unique physiochemical, biological and environmental properties which make them useful in a wide range of applications. in the present paper we report our research results on biosynthesis of silver nanoparticles from silver precursor using m...

Objective: To synthesize silver nanoparticles extracellularly using Bacillus sp. isolated from soil sample. Methods: Bacteria capable of synthesizing silver nanoparticles extracellularly were screened by treating culture supernatant with silver nitrate solution. The potential isolate was isolated on nutrient agar medium and identified by Gram staining and biochemical tests. Results: One of the ...

Disease-causing microbes that have become resistant to drug therapy are an increasing public health problem. Therefore there is an urgent need to develop new bactericides. Silver nanoparticles are the metal of choice as they hold the promise to kill microbes effectively. Silver nanoparticles take advantages of the oligodynamic effect that silver has on microbes. In this work we have synthesized...

We report the green synthesis of silver nanoparticles by using Euphorbia condylocarpa M. bieb root extract for the synthesis of N-monosubstituted ureas in water. UV-visible studies show the absorption band at 420 nm due to surface plasmon resonance (SPR) of the silver nanoparticles. This reveals the reduction of silver ions (Ag+) to silver (Ago) which indicates the formation of silver nanoparti...

silver nanoparticles are increasingly used in various fields of biotechnology and applications in the medicine. objectives of this study were optimization of production of silver nanoparticles using biotransformations by fusarium oxysporum, and a further study on the location of nanoparticles synthesis in this microorganism. the reaction mixture contained the following ingredients (final concen...