Roles of extracellular polymeric substances in the bactericidal effect of nanoscale zero-valent iron: Trade-offs between physical disruption and oxidative damage

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成果类型：

期刊论文

作者：

Hu, Ying;Wang, Jian;Sun, Hongwei*;Wang, Shaohui;Liao, Xiaomei;...

通讯作者：

Sun, Hongwei;Wang, Jun

作者机构：

[Hu, Ying; Sun, Hongwei] Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Inst Environm Chem,Coll Chem, Wuhan 430079, Hubei, Peoples R China.

[Hu, Ying; Wang, Jun] Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China.

[Wang, Jian; Liao, Xiaomei; Wang, Shaohui] Cent China Normal Univ, Sch Life Sci, Hubei Key Lab Genet Regulat & Integrat Biol, Wuhan 430079, Hubei, Peoples R China.

[Sun, Hongwei] Pohang Univ Sci & Technol POSTECH, Div Environm Sci & Engn, Pohang 37673, South Korea.

[Wang, Jun] Chinese Acad Sci, Sino Africa Joint Res Ctr, Wuhan 430074, Hubei, Peoples R China.

通讯机构：

[Sun, Hongwei; Wang, Jun] C

[Sun, Hongwei] P

Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Inst Environm Chem,Coll Chem, Wuhan 430079, Hubei, Peoples R China.

Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China.

Pohang Univ Sci & Technol POSTECH, Div Environm Sci & Engn, Pohang 37673, South Korea.

语种：

英文

期刊：

Environmental Science: Nano

ISSN：

2051-8153

年：

2019

卷：

期：

页码：

2061-2073

DOI：

10.1039/c9en00354a

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41601543]; China Post-doctoral Science FoundationChina Postdoctoral Science Foundation [2018T110782, 2017M620327]; program of China Scholarship CouncilChina Scholarship Council [201706775080]

机构署名：

本校为第一且通讯机构

院系归属：

生命科学学院

化学学院

摘要：

Nanoscale zero-valent iron (nZVI) was known to inactivate various microbes, but the impact of extracellular polymeric substances (EPS) on the bactericidal effect of nZVI remained poorly understood. In this study, we seek to clarify the role of capsular EPS in nZVI inactivation of Escherichia coli under aerobic conditions, by employing parental and isogenic mutants with controlled EPS secretion for comparison. The results indicated that increased EPS of E. coli mitigated the toxicity of nZVI. Surprisingly, more EPS favored the adsorption of nZVI...

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Roles of extracellular polymeric substances in the bactericidal effect of nanoscale zero-valent iron: Trade-offs between physical disruption and oxidative damage

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