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Dielectric Barrier Discharge Atmospheric Cold Plasma For Inactivation Of Pseudomonas Aeruginosa Biofilms, Dana Ziuzina, Sonal Patil, Patrick Cullen, Daniela Boehm, Paula Bourke
Dielectric Barrier Discharge Atmospheric Cold Plasma For Inactivation Of Pseudomonas Aeruginosa Biofilms, Dana Ziuzina, Sonal Patil, Patrick Cullen, Daniela Boehm, Paula Bourke
Articles
In recent years, atmospheric cold plasma (ACP) has been widely investigated for potential application as an alternative decontamination technology in biomedical and healthcare sectors. In this study, the antimicrobial efficacy of ACP against Pseudomonas aeruginosa biofilms was investigated. The 48-h biofilms were treated inside sealed polypropylene containers with a high-voltage dielectric barrier discharge (DBD) ACP (80 kVRMS) and subsequently stored for 24 h at room temperature. Treatment for 60 s by either the direct or indirect mode of ACP exposure (inside or outside plasma discharge, respectively) reduced bacterial populations by an average of 5.4 log cycles from an initial 6.6 …