{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T18:50:49Z","timestamp":1792003849025,"version":"4.4.0"},"reference-count":47,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2021,4,26]],"date-time":"2021-04-26T00:00:00Z","timestamp":1619395200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>The direct and indirect bactericidal effects of dielectric barrier discharge (DBD) cold atmospheric-pressure microplasma in an air and plasma jet generated in an argon-oxygen gas mixture was investigated on Staphylococcus aureus and Cutibacterium acnes. An AC power supply was used to generate plasma at relatively low discharge voltages (0.9\u20132.4 kV) and frequency (27\u201330 kHz). Cultured bacteria were cultivated at a serial dilution of 10\u22125, then exposed to direct microplasma treatment and indirect treatment through plasma-activated water (PAW). The obtained results revealed that these methods of bacterial inactivation showed a 2 and 1 log reduction in the number of survived CFU\/mL with direct treatment being the most effective means of treatment at just 3 min using air. UV\u2013Vis spectroscopy confirmed that an increase in treatment time at 1.2% O2, 98.8% Ar caused a decrease in O2 concentration in the water as well as a decrease in absorbance of the peaks at 210 nm, which are attributed NO2\u2212 and NO3\u2212 concentration in the water, termed denitratification and denitritification in the treated water, respectively.<\/jats:p>","DOI":"10.3390\/molecules26092523","type":"journal-article","created":{"date-parts":[[2021,4,27]],"date-time":"2021-04-27T02:31:43Z","timestamp":1619490703000},"page":"2523","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":51,"title":["Direct and Indirect Bactericidal Effects of Cold Atmospheric-Pressure Microplasma and Plasma Jet"],"prefix":"10.3390","volume":"26","author":[{"given":"Ahmad Guji","family":"Yahaya","sequence":"first","affiliation":[{"name":"Graduate School of Science and Technology, Shizuoka University, Hamamatsu 832-8561, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomohiro","family":"Okuyama","sequence":"additional","affiliation":[{"name":"Graduate School of Integrated Science and Technology, Shizuoka University, Hamamatsu 432-8561, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jaroslav","family":"Kristof","sequence":"additional","affiliation":[{"name":"Organization for Innovation and Social Collaboration, Shizuoka University, Hamamatsu 432-8561, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marius Gabriel","family":"Blajan","sequence":"additional","affiliation":[{"name":"Organization for Innovation and Social Collaboration, Shizuoka University, Hamamatsu 432-8561, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9914-671X","authenticated-orcid":false,"given":"Kazuo","family":"Shimizu","sequence":"additional","affiliation":[{"name":"Graduate School of Science and Technology, Shizuoka University, Hamamatsu 832-8561, Japan"},{"name":"Graduate School of Integrated Science and Technology, Shizuoka University, Hamamatsu 432-8561, Japan"},{"name":"Organization for Innovation and Social Collaboration, Shizuoka University, Hamamatsu 432-8561, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,4,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"5077","DOI":"10.1128\/AEM.00583-12","article-title":"Cold Atmospheric Air Plasma Sterilization against Spores and Other Microorganisms of Clinical Interest","volume":"78","author":"Isbary","year":"2012","journal-title":"Appl. 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