Coleus aromaticus leaf extract mediated synthesis of silver nanoparticles and its bactericidal activity

被引：332

作者：

Vanaja, Mahendran ^{[1
]}

Annadurai, Gurusamy ^{[1
]}

机构：

[1] Manonmaniam Sundaranar Univ, Sri Paramakalyani Ctr Environm Sci, Environm Nanotechnol Div, Alwarkurichi 627412, Tamilnadu, India

来源：

APPLIED NANOSCIENCE | 2013年 / 3卷 / 03期

关键词：

Biological synthesis; Silver nanoparticle; Electron microscopy; Coleus aromaticus; UV-vis spectroscopy; EXTRACELLULAR BIOSYNTHESIS; GREEN SYNTHESIS; ASSISTED BIOSYNTHESIS; ANTIBIOTICS;

D O I：

10.1007/s13204-012-0121-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The utilization of various plant resources for the biosynthesis of metallic nanoparticles is called green nanotechnology, and it does not utilize any harmful chemical protocols. The present study reports the plant-mediated synthesis of silver nanoparticles using the plant leaf extract of Coleus aromaticus, which acts as a reducing and capping agent. The silver nanoparticles were characterized by ultraviolet visible spectroscopy, X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and the size of the silver nanoparticles is 44 nm. The bactericidal activity of the silver nanoparticles was carried out by disc diffusion method that showed high toxicity against Bacillus subtilis and Klebsiella planticola. Biosynthesis of silver nanoparticles by using plant resources is an eco-friendly, reliable process and suitable for large-scale production. Moreover, it is easy to handle and a rapid process when compared to chemical, physical, and microbe-mediated synthesis process.

引用

页码：217 / 223

页数：7

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