PROPAGATION OF ARGON SURFACE DISCHARGE IN LONG TUBES AT ATMOSPHERIC PRESSURE, ITS BACTERICIDAL EFFECT AND THE EFFECT OF UV EMISSION

被引：0

作者：

Kovalova, Z. ^{[1
,2
]}

Leroy, M. ^{[1
]}

Jacobs, C. ^{[1
]}

Kirkpatrick, M. J. ^{[1
]}

Machala, Z.

Lopes, F. ^{[3
]}

Laux, C. O. ^{[4
]}

DuBow, M. S. ^{[5
]}

Odic, E. ^{[1
]}

机构：

[1] Univ Paris 06, Univ Paris Sud, Sorbonne Univ, CentraleSupelec,GeePs Grp Elect Engn Paris,UMR CN, F-91192 Gif Sur Yvette, France

[2] Comenius Univ, Fac Math Phys & Informat, Bratislava 84248, Slovakia

[3] CentraleSupelec, LGPM, F-92295 Chatenay Malabry, France

[4] Combust EM2C, CentraleSupelec, CNRS UPR 288, Lab Energet Mol & Marcoscop, F-92295 Chatenay Malabry, France

[5] Univ Paris 11, Univ Paris Saclay, CEA, CNRS,I2BC,Lab Gen & Biodivers Microbienne Biofilm, Batiment 409, F-91405 Orsay, France

来源：

HAKONE XV: INTERNATIONAL SYMPOSIUM ON HIGH PRESSURE LOW TEMPERATURE PLASMA CHEMISTRY: WITH JOINT COST TD1208 WORKSHOP: NON-EQUILIBRIUM PLASMAS WITH LIQUIDS FOR WATER AND SURFACE TREATMENT | 2016年

关键词：

low-temperature plasma; bio-decontamination; UV emission; argon plasma; pulsed corona discharges; DECONTAMINATION;

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The objective of the presented work is the bio-decontamination of small diameter long tubes by direct exposure of the tube inner surface to the plasma of a pulsed corona discharge in dry or humid argon. Bactericidal tests were conducted with Escherichia coli strain DH-1 for various exposure times. Up to similar to 5.5 log(10) reduction was observed for E. coli exposed 44 cm away from the HV electrode, for a 20 minute treatment. The factors contributing to the observed bactericidal effect include desiccation, reactive oxygen species (OH), H2O2 accumulation in the liquid phase, and UV B (and possibly VUV) in dry argon.

引用

页码：343 / 346

页数：4

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