Inactivation of infectious bacteria using nonthermal biocompatible plasma cabinet sterilizer
- Authors
- Akter, M.; Yadav, D.K.; Ki, S.H.; Choi, E.H.; Han, I.
- Issue Date
- Nov-2020
- Publisher
- MDPI AG
- Keywords
- Cabinet sterilizer; Escherichia coli (E. coli); Nonthermal biocompatible plasma (NBP); Reactive nitrogen species (RNS); Reactive oxygen species (ROS); Salmonella typhimurium (sepsis); Staphylococcus aureus (S. aureus)
- Citation
- International Journal of Molecular Sciences, v.21, no.21, pp.1 - 14
- Journal Title
- International Journal of Molecular Sciences
- Volume
- 21
- Number
- 21
- Start Page
- 1
- End Page
- 14
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/79108
- DOI
- 10.3390/ijms21218321
- ISSN
- 1661-6596
- Abstract
- Nonthermal, biocompatible plasma (NBP) is a promising unique state of matter that is effective against a wide range of pathogenic microorganisms. This study focused on a sterilization method for bacteria that used the dielectric barrier discharge (DBD) biocompatible plasma cabinet sterilizer as an ozone generator. Reactive oxygen species play a key role in inactivation when air or other oxygen-containing gases are used. Compared with the untreated control, Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), and Salmonella typhimurium (sepsis) were inhibited by approximately 99%, or were nondetectable following plasma treatment. Two kinds of plasma sterilizers containing six-or three-chamber cabinets were evaluated. There was no noticeable difference between the two configurations in the inactivation of microorganisms. Both cabinet configurations were shown to be able to reduce microbes dramatically, i.e., to the nondetectable range. Therefore, our data indicate that the biocompatible plasma cabinet sterilizer may prove to be an appropriate alternative sterilization procedure. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
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