Published 4 issues per year
ISSN Print: 1947-5764
ISSN Online: 1947-5772
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A Pilot Study of Atmospheric Nonthermal Plasma Jet Application on Staphylococcus aureus and Staphylococcus epidermidis
ABSTRACT
Background: Infectious skin diseases caused by Staphylococcus aureus and Staphylococcus epidermidis continue to increase worldwide even with management by current infection control methods. Novel methods for disinfecting these drug-resistant strains would be useful. We experimentally tested the effectiveness of nonthermal atmospheric pressure plasma jets at killing S. aureus and S. epidermidis in in vitro settings. Methods: The strains of S. aureus and S. epidermidis were propagated in tryptic soy agar plates after isolation and cultivation, and all of the plates were then exposed to nonthermal atmospheric pressure plasma jets for varying lengths of time (10, 20, 40, 60, 180, and 300 seconds). The colony forming units were quantified after 48-hour incubation at 37°C. Results: Exposure of S. aureus and S. epidermidis to nonthermal atmospheric pressure plasma jets at different lengths of time resulted in all strains killed on tryptic soy agar plates within 3 minutes. Conclusions: The nonthermal atmospheric pressure plasma jet is a promising instrument in controlling skin infection disease, which warrants further study in dermatology.
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Ding Tian, Xu Enbo, Liao Xinyu, Inactivation of Bacteria by Cold Plasma, in Applications of Cold Plasma in Food Safety, 2022. Crossref