Bactericidal effect of zero-valent iron nanoparticles on Escherichia coli.
Bactericidal effect of zero-valent iron nanoparticles on Escherichia coli.
复制标题
DOI:
10.1021/es800408u
复制
发表时间:
2008-07-01
影响因子:
11.4
通讯作者:
Sedlak, David L.
中科院分区:
文献类型:
--
作者:
Lee, Changha;Kim, Jee Yeon;Lee, Won Il;Nelson, Kara L.;Yoon, Jeyong;Sedlak, David L.
Zero-valent iron nanoparticles (nano-Fe0) in aqueous solution rapidly inactivated Escherichia coli (E. coli). A strong bactericidal effect of nano-Fe0 was found under deaerated conditions, with a linear correlation between log inactivation and nano-Fe0 dose (0.82 log inactivation / mg/L nano-Fe0 · hr). The inactivation of E. coli under air saturation required much higher nano-Fe0 doses due to the corrosion and surface oxidation of nano-Fe0 by dissolved oxygen. Significant physical disruption of the cell membranes was observed in E. coli exposed to nano-Fe0, which may have caused the inactivation, or enhanced the biocidal effects of dissolved iron. The reaction of Fe(II) with intracellular oxygen or hydrogen peroxide also may have induced oxidative stress by producing reactive oxygen species. The bactericidal effect of nano-Fe0 was a unique property of nano-Fe0, which was not observed in other types of iron-based compounds.
登录
查看更多内容
影响因子:
10.8
作者:
Brayner, R;Ferrari-Iliou, R;Fiévet, F
通讯作者:
Fiévet, F
影响因子:
3.3
作者:
Panacek, Ales;Kvitek, Libor;Zboril, Radek
通讯作者:
Zboril, Radek
影响因子:
9.9
作者:
Sondi, I;Salopek-Sondi, B
通讯作者:
Salopek-Sondi, B
影响因子:
3.9
作者:
Gogoi, Sonit Kumar;Gopinath, P.;Chattopadhyay, Arun
通讯作者:
Chattopadhyay, Arun
影响因子:
3.5
作者:
Morones, JR;Elechiguerra, JL;Yacaman, MJ
通讯作者:
Yacaman, MJ