Transport and accumulation of plasma generated species in aqueous solution

The interaction between cold atmospheric pressure plasma and liquids is receiving increasing attention for various applications. In particular, the use of plasma-treated liquids (PTL) for biomedical applications is of growing importance, in particular for sterilization and cancer treatment. However,...

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Published inPhysical chemistry chemical physics : PCCP Vol. 20; no. 10; pp. 6845 - 6859
Main Authors Verlackt, C C W, Van Boxem, W, Bogaerts, A
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 2018
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Summary:The interaction between cold atmospheric pressure plasma and liquids is receiving increasing attention for various applications. In particular, the use of plasma-treated liquids (PTL) for biomedical applications is of growing importance, in particular for sterilization and cancer treatment. However, insight into the underlying mechanisms of plasma-liquid interactions is still scarce. Here, we present a 2D fluid dynamics model for the interaction between a plasma jet and liquid water. Our results indicate that the formed reactive species originate from either the gas phase (with further solvation) or are formed at the liquid interface. A clear increase in the aqueous density of H O , HNO /NO and NO is observed as a function of time, while the densities of O , HO /O and ONOOH/ONOO are found to quickly reach a maximum due to chemical reactions in solution. The trends observed in our model correlate well with experimental observations from the literature.
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ISSN:1463-9076
1463-9084
DOI:10.1039/c7cp07593f