Green synthesis of silver nanoparticles using Rhodobacter Sphaeroides

被引：43
|
作者：
Bai, Hong-Juan [1 ,2 ]
Yang, Bin-Sheng [1 ,2 ]
Chai, Chun-Jing [2 ]
Yang, Guan-E [3 ]
Jia, Wan-Li [2 ]
Yi, Zhi-Ben [2 ]
机构：
[1] Shanxi Univ, Inst Mol Sci, Taiyuan 030006, Peoples R China
[2] N Univ China, Chem Ind & Ecol Inst, Taiyuan 030051, Peoples R China
[3] Shanxi Med Univ, Sch Pharmaceut Sci, Taiyuan 030001, Peoples R China
来源：
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY | 2011年 / 27卷 / 11期
关键词：
Rhodobacter sphaeroides; Biosynthesis; Silver nanoparticles; Cell filtrate; SULFIDE NANOPARTICLES; BIOLOGICAL SYNTHESIS; PHOTOSYNTHETIC BACTERIA; METAL NANOPARTICLES; BIOSYNTHESIS; GOLD; CULTURE;
D O I：
10.1007/s11274-011-0747-x
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
The use of microorganisms in the synthesis of nanoparticles emerges as an eco-friendly and exciting approach. In this study, silver nanoparticles were successfully synthesized from AgNO3 by reduction of aqueous Ag+ ions with the cell filtrate of Rhodobacter sphaeroides. Nanoparticles were characterized by means of UV-vis absorption spectroscopy, X-Ray Diffraction (XRD), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM). Crystalline nature of the nanoparticles in the fcc structure are confirmed by the peaks in the XRD pattern corresponding to (111), (200), (220) and (311) planes, bright circular spots in the selected are a electron diffraction (SAED) and clear lattice fringes in the high-resolution TEM image. Also, the size of silver nanoparticles was controlled by the specific activity of nitrate reductase in the cell filtrate.
引用
收藏
页码：2723 / 2728
页数：6
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