The interaction of an atmospheric pressure plasma jet using argon or argon plus hydrogen peroxide vapour addition with bacillus subtilis

doi:10.1088/1674-1056/19/10/105203

中国物理B ›› 2010, Vol. 19 ›› Issue (10): 105203-105203.doi: 10.1088/1674-1056/19/10/105203

The interaction of an atmospheric pressure plasma jet using argon or argon plus hydrogen peroxide vapour addition with bacillus subtilis

邓三喜¹, 程诚¹, 倪国华¹, 孟月东¹, 陈华²

(1)Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China; (2)Key Laboratory of Ion Beam Bioengineering, Chinese Academy of Sciences, Hefei 230031, China

收稿日期:2009-12-21 修回日期:2010-03-05 出版日期:2010-10-15 发布日期:2010-10-15
基金资助:
Project supported by the Science Foundation of Hefei Institutes of Physical Science, Chinese Academy of Sciences (Grant No. 085FZ10134).

The interaction of an atmospheric pressure plasma jet using argon or argon plus hydrogen peroxide vapour addition with bacillus subtilis

Deng San-Xi(邓三喜)^a)^†,Cheng Cheng(程诚)^a), Ni Guo-Hua(倪国华)^a), Meng Yue-Dong(孟月东)^a), and Chen Hua(陈华)^b)

^a Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China; ^b Key Laboratory of Ion Beam Bioengineering, Chinese Academy of Sciences, Hefei 230031, China

Received:2009-12-21 Revised:2010-03-05 Online:2010-10-15 Published:2010-10-15
Supported by:
Project supported by the Science Foundation of Hefei Institutes of Physical Science, Chinese Academy of Sciences (Grant No. 085FZ10134).

摘要/Abstract

摘要： This paper reports that an atmospheric pressure dielectric barrier discharge plasma jet, which uses argon or argon + hydrogen peroxide vapour as the working gas, is designed to sterilize the bacillus subtilis. Compared with the pure argon plasma, the bacterial inactivation efficacy has a significant improvement when hydrogen peroxide vapour is added into the plasma jet. In order to determine which factors play the main role in inactivation, several methods are used, such as determination of optical emission spectra, high temperature dry air treatment, protein leakage quantification, and scanning electron microscope. These results indicate that the possible inactivation mechanisms are the synergistic actions of chemically active species and charged species.

Abstract: This paper reports that an atmospheric pressure dielectric barrier discharge plasma jet, which uses argon or argon + hydrogen peroxide vapour as the working gas, is designed to sterilize the bacillus subtilis. Compared with the pure argon plasma, the bacterial inactivation efficacy has a significant improvement when hydrogen peroxide vapour is added into the plasma jet. In order to determine which factors play the main role in inactivation, several methods are used, such as determination of optical emission spectra, high temperature dry air treatment, protein leakage quantification, and scanning electron microscope. These results indicate that the possible inactivation mechanisms are the synergistic actions of chemically active species and charged species.

Key words: atmospheric pressure, plasma jet, hydrogen peroxide vapour, inactivation mechanisms, synergistic actions

中图分类号: (Plasma devices)

52.75.-d

52.77.-j (Plasma applications) 52.80.Tn (Other gas discharges) 87.80.-y (Biophysical techniques (research methods))

邓三喜, 程诚, 倪国华, 孟月东, 陈华. The interaction of an atmospheric pressure plasma jet using argon or argon plus hydrogen peroxide vapour addition with bacillus subtilis[J]. 中国物理B, 2010, 19(10): 105203-105203.

Deng San-Xi(邓三喜),Cheng Cheng(程诚), Ni Guo-Hua(倪国华), Meng Yue-Dong(孟月东), and Chen Hua(陈华). The interaction of an atmospheric pressure plasma jet using argon or argon plus hydrogen peroxide vapour addition with bacillus subtilis[J]. Chin. Phys. B, 2010, 19(10): 105203-105203.

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The interaction of an atmospheric pressure plasma jet using argon or argon plus hydrogen peroxide vapour addition with bacillus subtilis

The interaction of an atmospheric pressure plasma jet using argon or argon plus hydrogen peroxide vapour addition with bacillus subtilis

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