An Atmospheric-Pressure Low-Temperature Plasma Jet for Growth Inhibition of Escherichia Coli

被引:3
作者
Wagenaars, Erik [1 ]
van der Woude, Marjan [2 ,3 ]
Vann, Roddy [1 ]
机构
[1] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England
[2] Univ York, Hull York Med Sch, York YO10 5DD, N Yorkshire, England
[3] Univ York, Dept Biol, York YO10 5DD, N Yorkshire, England
基金
英国工程与自然科学研究理事会; 英国生物技术与生命科学研究理事会;
关键词
Atmospheric-pressure plasmas; biological interaction; plasma devices; MICROPLASMAS;
D O I
10.1109/TPS.2011.2153881
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Time-resolved imaging of an atmospheric-pressure low-temperature plasma jet showed the development of a "plasma bullet" during the discharge cycle, moving at velocities up to 2 x 10(4) m/s. This plasma jet is applied to the bacterium Escherichia coli, and viability is assessed. The region of nonviability is circular with a diameter of about 8 mm, which is much larger than the diameter of the plasma jet (similar to 1 mm). Further investigations are needed to fully understand the plasma bullet discharge behavior and the mechanisms rendering E. coli nonviable due to exposure to the plasma jet.
引用
收藏
页码:2346 / 2347
页数:2
相关论文
共 5 条
[1]   Microplasmas and applications [J].
Becker, KH ;
Schoenbach, KH ;
Eden, JG .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2006, 39 (03) :R55-R70
[2]   Microplasmas: Sources, particle kinetics, and biomedical applications [J].
Iza, Felipe ;
Kim, Gon Jun ;
Lee, Seung Min ;
Lee, Jae Koo ;
Walsh, James L. ;
Zhang, Yuantao T. ;
Kong, Michael G. .
PLASMA PROCESSES AND POLYMERS, 2008, 5 (04) :322-344
[3]   Killing of adherent oral microbes by a non-thermal atmospheric plasma jet [J].
Rupf, Stefan ;
Lehmann, Antje ;
Hannig, Matthias ;
Schaefer, Barbara ;
Schubert, Andreas ;
Feldmann, Uwe ;
Schindler, Axel .
JOURNAL OF MEDICAL MICROBIOLOGY, 2010, 59 (02) :206-212
[4]   Deactivation of Escherichia coli by the plasma needle [J].
Sladek, REJ ;
Stoffels, E .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2005, 38 (11) :1716-1721
[5]   Three distinct modes in a cold atmospheric pressure plasma jet [J].
Walsh, J. L. ;
Iza, F. ;
Janson, N. B. ;
Law, V. J. ;
Kong, M. G. .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2010, 43 (07)