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学科主题: 口腔医学
题名:
Treatment of enterococcus faecalis bacteria by a helium atmospheric cold plasma brush with oxygen addition
作者: Chen, Wei1; Huang, Jun1; Du, Ning2; Liu, Xiao-Di2; Wang, Xing-Quan1; Lv, Guo-Hua1; Zhang, Guo-Ping1; Guo, Li-Hong2; Yang, Si-Ze1,3
刊名: JOURNAL OF APPLIED PHYSICS
发表日期: 2012-07-01
DOI: 10.1063/1.4732135
卷: 112, 期:1
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Physics, Applied
研究领域[WOS]: Physics
关键词[WOS]: DIELECTRIC BARRIER DISCHARGE ; STREPTOCOCCUS-MUTANS BACTERIA ; BIOMEDICAL APPLICATIONS ; PRESSURE ; NEEDLE ; SPECTROSCOPY ; TEMPERATURE
英文摘要:

An atmospheric cold plasma brush suitable for large area and low-temperature plasma-based sterilization is designed. Results demonstrate that the He/O-2 plasma more effectively kills Enterococcus faecalis than the pure He plasma. In addition, the sterilization efficiency values of the He/O-2 plasma depend on the oxygen fraction in Helium gas. The atmospheric cold plasma brush using a proper ratio of He/O-2 (2.5%) reaches the optimum sterilization efficiency. After plasma treatment, the cell structure and morphology changes can be observed by the scanning electron microscopy. Optical emission measurements indicate that reactive species such as O and OH play a significant role in the sterilization process. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4732135]

语种: 英语
所属项目编号: 11005151
项目资助者: National Natural Science Foundation of China
WOS记录号: WOS:000306513400017
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/54227
Appears in Collections:北京大学口腔医学院_口腔生物研究室_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Key Lab Soft Matter Phys, Beijing 100190, Peoples R China
2.Peking Univ, Sch & Hosp Stomatol, Dept Oral Biol, Beijing 100080, Peoples R China
3.Xiamen Univ, Sch Phys & Mech & Elect Engn, Fujian Key Lab Plasma & Magnet Resonance, Dept Aeronaut, Xiamen 361005, Peoples R China

Recommended Citation:
Chen, Wei,Huang, Jun,Du, Ning,et al. Treatment of enterococcus faecalis bacteria by a helium atmospheric cold plasma brush with oxygen addition[J]. JOURNAL OF APPLIED PHYSICS,2012,112(1).
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