Non-thermal plasma sources based on cometary and point-to-ring discharges

0555875 - FZÚ 2023 RIV CH eng J - Journal Article
Khun, J. - Machková, A. - Kašparová, P. - Klenivskyi, M. - Vaňková, E. - Galář, Pavel - Julák, J. - Schöltz, V.
Non-thermal plasma sources based on cometary and point-to-ring discharges.
Molecules. Roč. 27, č. 1 (2022), č. článku 238. E-ISSN 1420-3049
R&D Projects: GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : Candida albicans * corona discharge * pseudomonas aeruginosa * microbicidal effect * Staphylococcus aureus * Trichophyton interdigitale
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 4.6, year: 2022
Method of publishing: Open access

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 microbicidal properties of two types of NTP sources. The microbicidal effect of NTP sources was tested on bacterium Staphylococcus aureus, Pseudomonas aeruginosa 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.
Permanent Link: http://hdl.handle.net/11104/0330330