Superoxide-Mediated Extracellular Biosynthesis of Silver Nanoparticles by the Fungus Fusarium oxysporum
文献类型：期刊论文
| 作者 | Yin, Yongguang; Yang, Xiaoya; Hu, Ligang; Tan, Zhiqiang; Zhao, Lixia; Zhang, Zhen; Liu, Jingfu; Jiang, Guibin |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
 |
| 出版日期 | 2016-04 |
| 卷号 | 3期号:4页码:160-165 |
| 英文摘要 | The biosynthesis of silver nanoparticles (AgNPs) by microorganisms has become a hot topic in recent years, although its mechanism is still not well understood. Here we report the extracellular biosynthesis of AgNPs by the fungus Fusarium oxysporum through a superoxide-dependent mechanism. Reduction of Ag+ to AgNPs in the extracellular region of F. oxysporum was verified by transmission electron microscopy, while the superoxide produced extracellularly by F. oxysporum was evidenced by chemiluminescence. We further demonstrated that the biosynthesis of AgNPs was inhibited by a superoxide scavenger or the inhibitor of NADH oxidases, and the addition of NADH significantly improved the formation of AgNPs. These results demonstrated that, for the first time, the fungus F. oxysporum can mediate the synthesis of AgNPs through the enzymatic generation of extracellular superoxide, which is helpful in understanding the biosynthesis of AgNPs and the biomineralization and transformation of silver and other metals or metalloids. |
| 收录类别 | SCI |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/35955]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yin, Yongguang,Yang, Xiaoya,Hu, Ligang,et al. Superoxide-Mediated Extracellular Biosynthesis of Silver Nanoparticles by the Fungus Fusarium oxysporum[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,2016,3(4):160-165. |
| APA | Yin, Yongguang.,Yang, Xiaoya.,Hu, Ligang.,Tan, Zhiqiang.,Zhao, Lixia.,...&Jiang, Guibin.(2016).Superoxide-Mediated Extracellular Biosynthesis of Silver Nanoparticles by the Fungus Fusarium oxysporum.ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,3(4),160-165. |
| MLA | Yin, Yongguang,et al."Superoxide-Mediated Extracellular Biosynthesis of Silver Nanoparticles by the Fungus Fusarium oxysporum".ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 3.4(2016):160-165. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。