Figure 2
From: No-ozone cold plasma can kill oral pathogenic microbes in H2O2-dependent and independent manner

NCP treatment can kill 4 kinds of oral microbes on solid medium. The representative photographs showing the surface bactericidal effect of NCP against S. mutans, E.faecalis, C.albicans and P.gingivalis (left). The photographs were taken at 24Â h after the NCP treatment for 1, 3 and 5Â min. The distance between the end of NCP device and solid medium inoculated with oral microbes were maintained at 1Â cm during the treatment. The diameter of inhibition zone were measured and presented in a table (right).