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Non-Thermal Plasma Sources Based on Cometary and Point-to-Ring Discharges.
Khun, Josef; Machková, Anna; Kasparová, Petra; Klenivskyi, Myron; Vanková, Eva; Galár, Pavel; Julák, Jaroslav; Scholtz, Vladimír.
Afiliação
  • Khun J; Department of Physics and Measurements, University of Chemistry and Technology, 16628 Prague, Czech Republic.
  • Machková A; Department of Physics and Measurements, University of Chemistry and Technology, 16628 Prague, Czech Republic.
  • Kasparová P; Department of Physics and Measurements, University of Chemistry and Technology, 16628 Prague, Czech Republic.
  • Klenivskyi M; Department of Physics and Measurements, University of Chemistry and Technology, 16628 Prague, Czech Republic.
  • Vanková E; Department of Physics and Measurements, University of Chemistry and Technology, 16628 Prague, Czech Republic.
  • Galár P; Department of Thin Films and Nanostructures, Institute of Physics, Czech Academy of Sciences, 16200 Prague, Czech Republic.
  • Julák J; Department of Physics and Measurements, University of Chemistry and Technology, 16628 Prague, Czech Republic.
  • Scholtz V; Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital, 12800 Prague, Czech Republic.
Molecules ; 27(1)2021 Dec 31.
Article em En | MEDLINE | ID: mdl-35011483
A non-thermal plasma (NTP) is a promising tool against the development of bacterial, viral, and fungal diseases. The recently revealed development of microbial resistance to traditional drugs has increased interest in the use of NTPs. We have studied and compared the physical and microbicidal properties of two types of NTP sources based on a cometary discharge in the point-to-point electrode configuration and a corona discharge in the point-to-ring electrode configuration. The electrical and emission properties of both discharges are reported. The microbicidal effect of NTP sources was tested on three strains of the bacterium Staphylococcus aureus (including the methicillin-resistant strain), the bacterium Pseudomonas aeruginosa, the yeast Candida albicans, and the micromycete Trichophyton interdigitale. In general, the cometary discharge is a less stable source of NTP and mostly forms smaller but more rapidly emerging inhibition zones on agar plates. Due to the point-to-ring electrode configuration, the second type of discharge has higher stability and provides larger affected but often not completely inhibited zones. However, after 60 min of exposure, the NTP sources based on the cometary and point-to-ring discharges showed a similar microbicidal effect for bacteria and an individual effect for microscopic fungi.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2021 Tipo de documento: Article