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Lee, Changha
Advanced Redox Technology (ART) Lab
Research Interests
  • Water Treatment, Advanced Oxidation/Reduction, Water Chemistry, Environmental Catalyst

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Inactivation of Escherichia coli by Nanoparticulate Zerovalent Iron and Ferrous Ion

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Title
Inactivation of Escherichia coli by Nanoparticulate Zerovalent Iron and Ferrous Ion
Author
Kim, Jee YeonPark, Hee-JinLee, ChanghaNelson, Kara L.Sedlak, David L.Yoon, Jeyong
Keywords
Deaerated conditions; Ferrous ion; Membrane integrity; Microscopic observations; Nano particulates; Reactive oxygen species; Respiratory activity; Zero-valent iron
Issue Date
201011
Publisher
AMER SOC MICROBIOLOGY
Citation
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, v.76, no.22, pp.7668 - 7670
Abstract
The mechanism of Escherichia coli inactivation by nanoparticulate zerovalent iron (nZVI) and Fe(II) was investigated using reactive oxygen species (ROS) quenchers and probes, an oxidative stress assay, and microscopic observations. Disruption of cell membrane integrity and respiratory activity was observed under deaerated conditions [more disruption by nZVI than Fe(II)], and .OH or Fe(IV) appears to play a role.
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DOI
http://dx.doi.org/10.1128/AEM.01009-10
ISSN
0099-2240
Appears in Collections:
UEE_Journal Papers
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