真菌介导的银纳米粒子的生物合成、表征和抗菌活性。

Fungal mediated biosynthesis of silver nanoparticles, characterization and antimicrobial activity.

机构信息

Applied Microbiology Laboratory, Department of Virology, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India.

出版信息

Colloids Surf B Biointerfaces. 2010 Dec 1;81(2):430-3. doi: 10.1016/j.colsurfb.2010.07.033. Epub 2010 Jul 23.

DOI:10.1016/j.colsurfb.2010.07.033

PMID:20708910

Abstract

Microbial assisted biosynthesis of nanoparticles is a rapidly progressing area of nanobiotechnology. In this paper Aspergillus niger assisted extracellular synthesis of silver nanoparticles is reported. The silver nanoparticles were characterized by UV-vis spectrophotometry, TEM, EDX and FTIR. TEM studies showed the size of the silver nanoparticles to be in the range of 3-30 nm. The probable mechanism for the extracellular synthesis of silver nanoparticles by Aspergillus niger was investigated. The nanoparticles showed antimicrobial activity against fungal and bacterial strains.

摘要

微生物辅助合成纳米粒子是纳米生物技术的一个快速发展领域。本文报道了黑曲霉辅助细胞外合成银纳米粒子的情况。通过紫外-可见分光光度法、TEM、EDX 和 FTIR 对银纳米粒子进行了表征。TEM 研究表明，银纳米粒子的尺寸在 3-30nm 范围内。研究了黑曲霉通过细胞外途径合成银纳米粒子的可能机制。纳米粒子对真菌和细菌菌株表现出抗菌活性。