Fig. 4
Inactivation of MSSA following overnight culture in low-level 405 nm light. Methicillin-sensitive Staphylococcus aureus (MSSA) was inactivated following exposure to 60 mW/cm2 405 nm light after overnight culture in low-level 405 nm light (0.15, 0.5 and 1 mW/cm2). The inactivation kinetics of dark-cultured MSSA have been included for reference. Each data point is a mean value ± SD (n ≥ 6). * Indicates 405 nm light-cultured samples that were significantly different to those which had been dark-cultured, using one way ANOVA with Dunnett’s post-hoc test (P < 0.05). No significant changes were observed in the final control populations (P ≥ 0.05)