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Mechanism Of Inactivation By High Voltage Atmospheric Cold Plasma Differs Between Escherichia Coli And Staphylococcus Aureus, Lu Han, Sonal Patil, Daniela Boehm, Vladimir Milosavljević, Patrick Cullen, Paula Bourke
Mechanism Of Inactivation By High Voltage Atmospheric Cold Plasma Differs Between Escherichia Coli And Staphylococcus Aureus, Lu Han, Sonal Patil, Daniela Boehm, Vladimir Milosavljević, Patrick Cullen, Paula Bourke
Articles
Atmospheric cold plasma (ACP) is a promising non-thermal technology effective against a wide range of pathogenic microorganisms. Reactive oxygen species (ROS) play a crucial inactivation role when air or other oxygen containing gases are used. With strong oxidative stress, cells can be damaged by lipid peroxidation, enzyme inactivation and DNA cleavage. Identifying ROS and understanding their role is important to advance ACP applications to a range of complex microbiological issues. In this study, the inactivation efficacy of in-package, high voltage (80 kVRMS) ACP (HVACP) and the role of intracellular ROS were investigated. Two mechanisms of inactivation were observed …