Escherichia colisurvival in plasma-treated water and in a gas-liquid plasma reactor

被引：6

作者：

Rodriguez, Cesar ^{[1
]}

Wandell, Robert J. ^{[2
]}

Zhang, Zhiming ^{[3
]}

Neurohr, Julie M. ^{[4
]}

Tang, Youneng ^{[3
]}

Rhodes, Ryan ^{[4
]}

Kinsey, Stephen T. ^{[4
]}

Locke, Bruce R. ^{[2
]}

机构：

[1] Florida State Univ, Dept Biomed Sci, Tallahassee, FL 32306 USA

[2] FAMU FSU Coll Engn, Dept Chem & Biomed Engn, 2525 Pottsdamer St, Tallahassee, FL 32310 USA

[3] FAMU FSU Coll Engn, Dept Civil & Environm Engn, Tallahassee, FL 32310 USA

[4] Univ North Carolina Wilmington, Dept Biol & Marine Biol, Wilmington, NC USA

来源：

PLASMA PROCESSES AND POLYMERS | 2020年 / 17卷 / 12期

关键词：

Escherichia colisurvival; gas-liquid plasma; hydrogen peroxide; nonthermal plasma; sterilization; decontamination; ATMOSPHERIC-PRESSURE PLASMAS; ROOM-TEMPERATURE PLASMA; BACTERIA; DECONTAMINATION; INACTIVATION; CELLS; STERILIZATION; DISCHARGES; EXPOSURE; STRAINS;

D O I：

10.1002/ppap.202000099

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effects of post-plasma exposure to deionized water treated by argon-water plasma and to direct plasma treatment of bacteria in a liquid solution of a strain ofEscherichia coli, which was independently evolved to resist the bactericidal effects of hydrogen peroxide, were determined. The hydrogen peroxide resistant phenotype of the evolved strain was proportional to the initial cell density. The catalase activity was significantly elevated in the evolved strain as compared with the wild-type strain, and the evolved strain resisted the bactericidal effects of plasma-treated water (post-plasma exposure) as compared with the wild-type strain. The evolved strain remained viable after flowing through the plasma reactor and lysed less when exposed to (nonplasma control) hydrogen peroxide solutions as compared with the wild-type cells.

引用

页数：10

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