Inactivation of Vegetative Microorganisms and Bacillus atrophaeus Endospores by Reactive Nitrogen Species ( RNS)

被引：36

作者：

Schnabel, Uta ^{[1
]}

Andrasch, Mathias ^{[1
]}

Weltmann, Klaus-Dieter ^{[1
]}

Ehlbeck, Joerg ^{[1
]}

机构：

[1] Leibniz Inst Plasma Sci & Technol, D-17489 Greifswald, Germany

来源：

PLASMA PROCESSES AND POLYMERS | 2014年 / 11卷 / 02期

关键词：

bacterial endospores; microwave discharges; nitrogen; plasma treatment; sterilization; ATMOSPHERIC-PRESSURE PLASMAS; STERILIZATION; SUBTILIS; RESISTANCE; SPORES; DECONTAMINATION; SURVIVAL;

D O I：

10.1002/ppap.201300072

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Plasma is used as a common technology for the treatment and modification of surfaces in a variety of industrial branches. Decontamination of inorganic materials by plasma is possible with deterioration of the materials properties of a few nanometres. The inactivation efficacy of microwave plasma processed air against vegetative bacteria and bacterial endospores was investigated. The gained results provide inactivation rates up to 6 log in total treatment times (15-30min) comparable to sterilization treatment times of thermo-sensitive medical devices with ethylene oxide, formaldehyde or H2O2. Additions like O-2 or O-3 did not promote the antimicrobial efficacy. Moreover, this new method is characterized by advantages like no thermal influence, no toxicity for human and environment and low costs.

引用

页码：110 / 116

页数：7

共 43 条

[1] Electron density measurements on an inductively coupled plasma with a one-port microwave interferometer [J].