Comparison of direct and indirect effects of non-thermal atmospheric-pressure plasma on bacteria

被引：459

作者：

Fridman, Gregory ^{[1
]}

Brooks, Ari D.

Balasubramanian, Manjula

Fridman, Alexander

Gutsol, Alexander

Vasilets, Victor N.

Ayan, Halim

Friedman, Gary

机构：

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

[2] Drexel Univ, Coll Med, Dept Surg, Philadelphia, PA 19104 USA

[3] Drexel Univ, Coll Med, Transfus Serv & Donor Ctr, Philadelphia, PA 19104 USA

[4] Drexel Univ, Dept Mech Engn & Mech, Philadelphia, PA 19104 USA

[5] Drexel Univ, Dept Elect & Comp Engn, Philadelphia, PA 19104 USA

来源：

PLASMA PROCESSES AND POLYMERS | 2007年 / 4卷 / 04期

关键词：

dielectric barrier discharges (DBD); direct and indirect plasma sterilization; direct and afterglow plasma treatment; ion-assisted chemistry; non-thermal plasma; DIELECTRIC BARRIER DISCHARGE; ESCHERICHIA-COLI; NEEDLE TREATMENT; GLOW-DISCHARGE; UV-RADIATION; INACTIVATION; STERILIZATION; WATER; AIR; DECONTAMINATION;

D O I：

10.1002/ppap.200600217

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Direct and indirect influence on microorganisms of non-thermal atmospheric-pressure DBD in air is compared in terms of bacterial inactivation rates. It is demonstrated that direct influence of the plasma, where charged particles contact bacteria directly, produces inactivation much faster than the indirect treatment, where plasma afterglow is delivered to the bacteria with a gas flow through the plasma region. This leads to an important conclusion that the effect of charged particles on plasma plays the essential role in interaction with living organisms, although synergy with longer living active molecules and atoms as well as UV radiation generated in plasma and at the surface of tissues may also play a role in inactivation.

引用

页码：370 / 375

页数：6

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