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). |
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