The Role of Oxygen in a Large Area of RF-Powered Atmospheric Pressure Dielectric Barrier Glow Discharge Plasma in Sterilization

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	The Role of Oxygen in a Large Area of RF-Powered Atmospheric Pressure Dielectric Barrier Glow Discharge Plasma in Sterilization
	Pang, Hua ; Chen, Qiang ; Li, Bin ; Fei, Fei ; Yang, Size ; Yang SZ(杨思泽)
刊名	http://dx.doi.org/10.1109/TPS.2011.2155104
	2011-08
关键词	LOW-TEMPERATURE PLASMA BACTERIAL INACTIVATION ESCHERICHIA-COLI AIR RADIOFREQUENCY NEEDLE
英文摘要	National Natural Science Foundation of China [11005151, 10735090]; A nonequilibrium Ar/O(2) plasma at atmospheric pressure was generated between two parallel square electrodes by a 13.56-MHz power supplier. Experimental results demonstrate that the Ar/O(2) plasma more effectively kills Staphylococcus aureus and Escherichia coli than the Ar plasma. When the O(2) flow rate increases from 0 to 100 sccm step by step, the discharge voltage and the radio-frequency (RF) current always show sinusoidal waveforms, and the discharges maintain the a mode as well. In addition, the sterilization efficiency values of the RF-powered atmospheric pressure Ar/O(2) plasma depend on the oxygen fraction in Ar gas. It is found that the sterilization efficiency of the Ar/O(2) plasma is highest with 0.5 vol.% oxygen in argon gas, corresponding to the maximum production of O((3)P) radicals. It is considered that the O((3)P) radicals produced by the Ar/O(2) plasma play a significant role in atmospheric plasma sterilization.
语种	英语
出版者	IEEE T PLASMA SCI
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/91623]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Pang, Hua,Chen, Qiang,Li, Bin,et al. The Role of Oxygen in a Large Area of RF-Powered Atmospheric Pressure Dielectric Barrier Glow Discharge Plasma in Sterilization[J]. http://dx.doi.org/10.1109/TPS.2011.2155104,2011.
APA	Pang, Hua,Chen, Qiang,Li, Bin,Fei, Fei,Yang, Size,&杨思泽.(2011).The Role of Oxygen in a Large Area of RF-Powered Atmospheric Pressure Dielectric Barrier Glow Discharge Plasma in Sterilization.http://dx.doi.org/10.1109/TPS.2011.2155104.
MLA	Pang, Hua,et al."The Role of Oxygen in a Large Area of RF-Powered Atmospheric Pressure Dielectric Barrier Glow Discharge Plasma in Sterilization".http://dx.doi.org/10.1109/TPS.2011.2155104 (2011).