Decontamination of Surfaces From Extremophile Organisms Using Nonthermal Atmospheric-Pressure Plasmas

被引：54

作者：

Cooper, Moogega ^{[1
]}

Fridman, Gregory ^{[2
]}

Staack, David ^{[3
]}

Gutsol, Alexander F. ^{[4
]}

Vasilets, Victor N. ^{[5
]}

Anandan, Shivanthi ^{[6
]}

Cho, Young I.

Fridman, Alexander ^{[1
]}

Tsapin, Alexandre ^{[7
]}

机构：

[1] Drexel Univ, Dept Mech Engn & Mech, AJ Drexel Plasma Inst, Philadelphia, PA 19104 USA

[2] Drexel Univ, Sch Biomed Engn Sci & Hlth Syst, Philadelphia, PA 19104 USA

[3] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA

[4] Chevron Corp, Chevron Energy Technol Co, Richmond, CA 94801 USA

[5] Russian Acad Sci, Inst Energy Problems Chem Phys, Chernogolovka 142432, Russia

[6] Drexel Univ, Dept Biosci & Biotechnol, Philadelphia, PA 19104 USA

[7] CALTECH, Jet Prop Lab, NASA, Pasadena, CA 91109 USA

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2009年 / 37卷 / 06期

基金：

美国国家航空航天局;

关键词：

Atmospheric-pressure discharges; cold plasma; dielectric barrier discharges (DBDs); plasma decontamination; sterilization; DEINOCOCCUS-RADIODURANS; STERILIZATION; RADIATION; SURVIVAL;

D O I：

10.1109/TPS.2008.2010618

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：

We showed that nonthermal dielectric barrier discharge (DBD) plasma compromises the integrity of the cell membrane of Deinococcus radiodurans, an extremophile organism. In samples of D. radiodurans, which were dried in a laminar flow hood, we observe that DBD plasma exposure resulted in a six-log reduction in CFU (colony-forming unit) count after 30 min of treatment. When the Deinococcus radiodurans cells were suspended in distilled water and treated, it took only 15 s to achieve a four-log reduction of CFU count.

引用

页码：866 / 871

页数：6

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