Gas-liquid interfacial plasmas producing reactive species for cell membrane permeabilization

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24 Citations (Scopus)

Abstract

Gas-1iquid Interfacial atmospheric-pressure plasma jets (GLI-APPJ) are used medically for plasma-induced cell-membrane permeabilization. In an attempt to identify the dominant factors induced by GLI-APPJ responsible for enhancing cell-membrane permeability, the concentration and distribution of plasma-produced reactive species in the gas and liquid phase regions are measured. These reactive species are classified in terms of their life-span: long-lived (e.g., H2O2), short-lived (e.g., O2•-), and extremely-short-lived (e.g., •OH). The concentration of plasma-produced •OHaq in the liquid phase region decreases with an increase in solution thickness (<1 mm), and plasma-induced cell-membrane permeabilization is found to decay markedly as the thickness of the solution increases. Furthermore, the horizontally center-localized distribution of •OHaq, resulting from the center-peaked distribution of •OH in the gas phase region, corresponds with the distribution of the perme-abilized cells upon APPJ irradiation, whereas the overall plasma-produced oxidizing species such as H2O2aq in solution exhibit a doughnut-shaped horizontal distribution. These results suggest that •OHaq is likely one of the dominant factors responsible for plasma-induced cell-membrane permeabilization.

Original languageEnglish
Pages (from-to)3-11
Number of pages9
JournalJournal of Clinical Biochemistry and Nutrition
Volume60
Issue number1
DOIs
Publication statusPublished - 2017 Jan

Keywords

  • Atmospheric pressure plasma jet
  • Cell membrane permeabilization
  • Gas liquid interfacial plasma
  • Plasma medicine
  • Reactive species

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics
  • Clinical Biochemistry

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