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Mansour Ghaffari-Moghaddam,Robabeh Hadi-Dabanlou 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.2
In this study, silver nanoparticles were synthesized using the Crataegus douglasii fruit extract as areducing agent. The reaction process was monitored by UV–vis spectroscopy. Further characterizationwas carried out using scanning electron microscopy (SEM). To optimize the biosynthesis of silvernanoparticles, the effect of process variables such as extract concentrations, mixing ratio of the reactants,time and pH were also investigated. The SEM images showed silver nanoparticles with 29.28 nm size andnearly spherical shape at 24 h interaction time. The antibacterial activity of the synthesized silvernanoparticles was confirmed against Staphylococcus aureus and Escherichia coli.
Green synthesis of silver nanoparticles using plant extracts
Mansour Ghaffari-Moghaddam,Robabeh Hadi-Dabanlou,Mostafa Khajeh,Mansoureh Rakhshanipour,Kamyar Shameli 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.4
The strategy for design of new nanometals was developed due to their wide applications in many fields. One of the most important nanometals is silver nanoparticles (AgNPs) because of their extensive applications in biotechnologyand biomedical fields. AgNPs were usually synthesized by using chemical and physical methods. In thechemical methods, various toxic chemicals are used, which are harmful to the health of living organisms. Therefore,the AgNPs were synthesized by using biological methods based on green chemistry for reducing the toxic chemicals. There are various resources for green synthesis of AgNPs, such as bacteria, fungi, enzyme and plant extracts. The greensynthesis of AgNPs involves three main steps: the selection of the solvent medium, the selection of environmentallyreducing agents, and the selection of non-toxic substances for the stability of AgNPs. The biosynthesis of AgNPs usingplant extracts is more favorable than other biological methods because of removing the elaborate process of maintainingcell cultures. It can be also suitably scaled up for large scale production of AgNPs. This review focuses on green synthesisof AgNPs using various plant extracts.