Sterilization of bacterial endospores by an atmospheric-pressure argon plasma jet

被引：82
|
作者：
Uhm, Han S.
Lim, Jin P.
Li, Shou Z.
机构：
[1] Ajou Univ, Dept Mol Sci & Technol, Suwon 443749, South Korea
[2] Dalian Univ Technol, Dept Phys, State Key Lab Mat Modificat Laser Ion & Electron, Dalian 116024, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 26期
关键词：
D O I：
10.1063/1.2747177
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Argon plasma jets penetrate deep into ambient air and create a path for oxygen radicals to sterilize microbes. A sterilization experiment with bacterial endospores indicates that an argon-oxygen plasma jet very effectively kills endospores of Bacillus atrophaeus (ATCC 9372), thereby demonstrating its capability to clean surfaces and its usefulness for reinstating contaminated equipment as free from toxic biological warfare agents. However, the spore-killing efficiency of the atmospheric-pressure argon-oxygen jet depends very sensitively on the oxygen concentration in the argon gas. (c) 2007 American Institute of Physics.
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