Comparison of the Bacterial Inactivation Efficiency ofWater Activated by a Plasma Jet Source and a Pin-to-Pin Electrode Configuration Source

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dc.citation.spage3286
dc.citation.volume11
dc.contributor.authorČobanović, Radovan
dc.contributor.authorMaletić, Dejan
dc.contributor.authorKocić-Tanackov, Sunčica
dc.contributor.authorČabarkapa, Ivana
dc.contributor.authorKokić, Bojana
dc.contributor.authorKojić, Predrag
dc.contributor.authorMilošević, Slobodan
dc.contributor.authorStulić, Višnja
dc.contributor.authorVukušić Pavičić, Tomislava
dc.contributor.authorVukić, Milan
dc.date.accessioned2024-11-20T12:52:35Z
dc.date.available2024-11-20T12:52:35Z
dc.date.issued2023
dc.description.abstractIn this comparative study, the bacterial inactivation efficiency of plasma-activated water (PAW) generated by two distinct plasma reactors, one utilizing a nitrogen plasma jet electrode and the other a hybrid argon plasma reactor, was explored. The present study involved the assessment of antimicrobial activity against suspensions of three Gram-positive and three Gram-negative bacterial strains in their planktonic cell state. Bacterial suspensions were introduced into PAW five days after generation. Subsequently, the viability of the bacteria was assessed at various time intervals, specifically at 0.5, 1, 3, 5, 10, and 24 h, in order to evaluate the effect of inactivation. Structural changes in bacteria after PAW treatment were assessed using a scanning electron microscope (SEM). The physicochemical properties of PAW, including pH, conductivity, and concentrations of H2O2, NO2 -, and NO3 - during aging were measured. The present study demonstrated the effective inactivation of the tested bacterial strains by PAW. Gram-positive bacteria displayed greater resistance compared to Gram-negative species, with the lowest reductions in bacterial counts observed for B. cereus, and the highest for Escherichia coli O157:H7. Morphological damage was evident across all bacterial species examined. Physicochemical measurements showed slow decay of the reactive species in the aging process. This study illustrated the potential utility of PAW as an alternative disinfectant.
dc.identifier.doi10.3390/pr11123286
dc.identifier.urihttps://vaseljena.ues.rs.ba/handle/123456789/1323
dc.language.isoen
dc.publisherMDPI
dc.sourceProcesses
dc.subjectbacteria inactivation efficiency; Gram-positive bacteria; Gram-negative bacteria; PAW; plasma activated water; plasma jet; hybrid plasma discharge; SEM imaging
dc.titleComparison of the Bacterial Inactivation Efficiency ofWater Activated by a Plasma Jet Source and a Pin-to-Pin Electrode Configuration Source
dc.typeArticle
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