Fig 3. Inactivation effects of nitrogen plasma and carbon dioxide plasma on P. aeruginosa suspension including each radical scavenger.

(Treatment time, 60 s; initial bacteria concentration, 5.4 × 107 CFU). SOD was used as a superoxide scavenger, catalase as a H2O2 scavenger, NaN3 as a singlet oxygen scavenger, and DMSO as an OH radical scavenger.