...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Artificial cells, blood substitutes, and biotechnology >Bioconversion of silver salt into silver nanoparticles using different microorganisms
【24h】

Bioconversion of silver salt into silver nanoparticles using different microorganisms

机译：使用不同的微生物将银盐生物转化为银纳米颗粒

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Recently, silver nanoparticles have generated enough interest due to their immense usage. Until now chemical synthesis has been a fast method to produce nanoparticles, but the release of environmental pollutants has raised caution. So a more subtle biochemical approach is in research. Three microorganisms, Aspergillus flavus, Phoma exigua and Bacillus megaterium, were selected to reduce silver nitrate to silver nanoparticles in aqueous form. All three microorganisms showed varying reducing capacity, of which Phoma exigua showed the highest, when their biomass was incubated in silver nitrate for 48 hours. The nanoparticles showed all the optical and physical properties, which were analyzed by measuring the surface plasmon resonance and TEM. It was also observed that the fungal species have varied growth in silver nitrate and can be used to produce silver nanoparticles, directly incubating the inoculums of fungus in the media containing silver nitrate. On comparing all the characteristics and results produced, Aspergillus flavus was found to be the most effective microorganism, which can convert the silver nitrate to silver nanoparticles in aqueous condition. The bacterial species showed no growth with incubation with silver nitrate.
机译：近来，由于银纳米颗粒的大量使用，引起了足够的兴趣。到目前为止，化学合成一直是生产纳米颗粒的快速方法，但是释放环境污染物引起了人们的注意。因此，正在研究一种更微妙的生化方法。选择了三种微生物，即黄曲霉，埃希瓜（Phoma exigua）和巨大芽孢杆菌（Bacillus megaterium），以将硝酸银还原为水性形式的纳米银。当将其生物量在硝酸银中孵育48小时时，所有三种微生物均表现出不同的还原能力，其中Phoma exigua表现出最高的还原能力。纳米粒子表现出所有的光学和物理性质，通过测量表面等离子体共振和TEM分析。还观察到真菌种类在硝酸银中具有不同的生长，可用于生产银纳米颗粒，直接在含有硝酸银的培养基中孵育真菌接种物。通过比较所有特征和产生的结果，发现黄曲霉是最有效的微生物，它可以在水性条件下将硝酸银转化为纳米银。与硝酸银一起培养时，细菌种类没有显示出生长。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号