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Plasma mediated biofilm inactivation and removal. S. aureus biofilms on PET films treated with discharge argon (top panel), nitrogen (middle panel), and oxygen (bottom panel) generated at 60 watts for the indicated time (minutes) given in each image. Fluorescence images of biofilms were acquired using confocal microscopy. Live and dead bacteria were stained green and red, respectively, by Live/Dead staining kit.
