A self-powered sterilization system with both instant and sustainable antibacterial ability

被引：125

作者：

Tian, Jingjing ^{[1
,2
,3
]}

Feng, Hongqing ^{[1
,2
]}

Yan, Ling ^{[4
]}

Yu, Min ^{[1
,2
]}

Ouyang, Han ^{[1
,2
,3
]}

Li, Hu ^{[4
]}

Jiang, Wen ^{[1
,2
,3
]}

Jin, Yiming ^{[1
,2
,3
]}

Zhu, Guang ^{[1
,2
]}

Li, Zhou ^{[1
,2
]}

Wang, Zhong Lin ^{[1
,2
,5
]}

机构：

[1] Chinese Acad Sci, Beijing Inst Nanoenergy & Nanosyst, Beijing 100083, Peoples R China

[2] Natl Ctr Nanosci & Technol NCNST, CAS Ctr Excellence Nanosci, Beijing 100190, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] Beihang Univ, Sch Biol Sci & Med Engn, Beijing 100191, Peoples R China

[5] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

NANO ENERGY | 2017年 / 36卷

基金：

中国国家自然科学基金;

关键词：

Triboelectric nanogenerator; Water sterilization; Electroporation; Reactive oxygen species; Electron storage; WATER-WAVE ENERGY; DISINFECTION BY-PRODUCTS; TRIBOELECTRIC NANOGENERATOR; ELECTRON STORAGE; OXIDATIVE STRESS; DRINKING-WATER; NANOPARTICLES; ELECTROPORATION; BACTERIA; DAMAGE;

D O I：

10.1016/j.nanoen.2017.04.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A self-powered and high-efficient water sterilization system was set up consisting of a wave-driven triboelectric nanogenerator (TENG) and two nanobrush electrodes made of Ag-nanoparticles integrated ZnO-nanowires. The system showed both instant and sustainable sterilization efficiency for various microbes including those in natural river water. The colony forming units (CFU) were reduced from 106/mL to 0 within 0.5 min of electrical field (EF) treatment for Gram-negative bacteria. In addition, the bacteria annihilation ability was sustained for at least 20 min after withdrawing the EF. The mechanism lay in the synergetic work of electricity and the Ag/ZnO nanomaterial, which not only produced electroporation during EF treatment, but also induced sustained intracellular reactive oxygen species (ROS) to do additional sterilization when EF was withdrawn.

引用

页码：241 / 249

页数：9

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