Assessment of the roles of various inactivation agents in an argon-based   direct current atmospheric pressure cold plasma jet

doi:10.1063/1.4730627

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	Assessment of the roles of various inactivation agents in an argon-based direct current atmospheric pressure cold plasma jet
	Zhang, Qian ; Sun, Peng ; Feng, Hongqing ; Wang, Ruixue ; Liang, Yongdong ; Zhu, Weidong ; Becker, Kurt H. ; Zhang, Jue ; Fang, Jing
刊名	应用物理杂志
	2012
关键词	BACILLUS-SUBTILIS SPORES NITRIC-OXIDE DISCHARGE MICROJET OXYGEN DECONTAMINATION SPECTROSCOPY ENVIRONMENT HE/O-2 WATER
DOI	10.1063/1.4730627
英文摘要	Three types of gases, pure argon (99.999%), argon with 2% oxygen, and argon with 2% oxygen and 10% nitrogen were used as operating gases of a direct current atmospheric pressure cold plasma jet to inactivate Staphylococcus aureus (S. aureus) suspended in a liquid. The inactivation efficacies for the plasma jets operating in the three gases decrease from Ar/O-2(2%) to Ar/O-2(2%)/N-2(10%) to pure Ar. Optical emission spectroscopy, electron spin resonance spectroscopy, high performance liquid chromatography, and atomic absorption spectrophotometry were employed to identify and monitor the reactive species in the plasma-liquid system for the three operating gases and revealed the presence of O, O-1(2), OH, NO, H2O2, O-3, and NO3-/NO2- as well as Cu+/Cu2+. The S. aureus inactivation results indicate that atomic oxygen (O) is the key inactivation agent, while other species play a lesser role in the inactivation progress studied here. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4730627]; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000305832100022&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Physics, Applied; SCI(E); EI; 13; ARTICLE; 12; 111
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/164137]
专题	工学院
推荐引用方式 GB/T 7714	Zhang, Qian,Sun, Peng,Feng, Hongqing,et al. Assessment of the roles of various inactivation agents in an argon-based direct current atmospheric pressure cold plasma jet[J]. 应用物理杂志,2012.
APA	Zhang, Qian.,Sun, Peng.,Feng, Hongqing.,Wang, Ruixue.,Liang, Yongdong.,...&Fang, Jing.(2012).Assessment of the roles of various inactivation agents in an argon-based direct current atmospheric pressure cold plasma jet.应用物理杂志.
MLA	Zhang, Qian,et al."Assessment of the roles of various inactivation agents in an argon-based direct current atmospheric pressure cold plasma jet".应用物理杂志 (2012).