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Evaluation of Selected Properties of Dielectric Barrier Discharge Plasma Jet
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SYSNO ASEP 0573316 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Evaluation of Selected Properties of Dielectric Barrier Discharge Plasma Jet Author(s) Kwiatkowski, M. (PL)
Terebun, P. (PL)
Kučerová, K. (SK)
Tarabová, Barbora (UFP-V) ORCID
Koval'ová, Zuzana (UFP-V) ORCID
Lavrikova, A. (SK)
Machala, Z. (SK)
Hensel, K. (SK)
Pawłat, J. (PL)Number of authors 9 Article number 1167 Source Title Materials. - : MDPI
Roč. 16, č. 3 (2023)Number of pages 14 s. Language eng - English Country CH - Switzerland Keywords atmospheric pressure plasma ; biological materials ; dielectric barrier discharge ; Escherichia coli ; plasma jet ; plasma treatment of liquid ; reactive oxygen and nitrogen species Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry Method of publishing Open access Institutional support UFP-V - RVO:61389021 UT WOS 000930153500001 EID SCOPUS 85147998784 DOI 10.3390/ma16031167 Annotation In the technological processes requiring mild treatment, such as soft materials processing or medical applications, an important role is played by non-equilibrium plasma reactors with dielectric barrier discharge (DBD), that when generated in noble gases allows for the effective treatment of biological material at a low temperature. The aim of this study is to determine the operating parameters of an atmospheric pressure, radio-frequency DBD plasma jet reactor for the precise treatment of biological materials. The tested parameters were the shape of the discharge (its length and volume), current and voltage signals, as well as the power consumed by the reactor for various composition and flow rates of the working gas. To determine the applicability in medicine, the temperature, pH, concentrations of H2O2, NO2− and NO3− and Escherichia coli log reduction in the plasma treated liquids were determined. The obtained results show that for certain operating parameters, a narrow shape of plasma stream can generate significant amounts of H2O2, allowing for the mild decontamination of bacteria at a relatively low power of the system, safe for the treatment of biological materials. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2024 Electronic address https://www.mdpi.com/1996-1944/16/3/1167
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