Fig. 2From: The application of selenium nanoparticles for enhancing the efficacy of photodynamic inactivation of planktonic communities and the biofilm of Streptococcus mutansThe CFUs of the one-day S. mutans biofilm after treatment by MB-induced PDT, SeNPs, and combination therapy compared to the control group. (ns: not significant, NANO: SeNPs, MB: methylene blue, *P-value < 0.05.)Back to article page