Atmospheric pressure microplasma jet generated in a long hollow core optical fiber is studied to verify the potential feasibility of endoscopic therapies. Thermal damage and electric shock to the human body were suppressed by two technical methods, i.e., the high-voltage resistant flexible tube wrapped on the optical fiber and a power resistor of 100 kΩ connected between the power supply and the copper foil electrode. Optical emission spectra analysis indicated that many kinds of active radicals like excited atomic O and OH, were generated in the microplasma jet. In addition, the applications of the microplasma jet on sterilization and lung cancer cell apoptosis were presented. After 5 min of exposures to the microplasma jet, the cell viability and the bacillus subtilis replication decreased to about 3% and zero, respectively. More investigations are needed to improve the plasma-aided endoscopic therapies.
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August 2013
Research Article|
August 09 2013
Non-equilibrium atmospheric pressure microplasma jet: An approach to endoscopic therapies
Xiao Zuo;
Xiao Zuo
Institute of Plasma Physics, Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
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Yu Wei;
Yu Wei
Institute of Plasma Physics, Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
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Long Wei Chen;
Long Wei Chen
a)
Institute of Plasma Physics, Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
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Yue Dong Meng;
Yue Dong Meng
Institute of Plasma Physics, Chinese Academy of Sciences
, Hefei 230031, People's Republic of China
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a)
Electronic mail: lwchen@ipp.ac.cn. Telephone: +86-551-65593308.
Phys. Plasmas 20, 083507 (2013)
Article history
Received:
April 20 2013
Accepted:
July 22 2013
Citation
Xiao Zuo, Yu Wei, Long Wei Chen, Yue Dong Meng, Plasma Medicine Team; Non-equilibrium atmospheric pressure microplasma jet: An approach to endoscopic therapies. Phys. Plasmas 1 August 2013; 20 (8): 083507. https://doi.org/10.1063/1.4817958
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