Figure 8From: Charge effect on the photoinactivation of Gram-negative and Gram-positive bacteria by cationic meso-substituted porphyrinsBacterial photoinactivation with Mono-Py+-Me-Tri-CO 2 H. Survival curves of E. faecalis (A) and E. coli (B) (~107 CFU mL-1) incubated with porphyrin Mono-Py+-Me-Tri-CO2H and exposed to PAR light for different light doses. Light control (cross), dark control (filled diamond), 0.5 μM (filled circle), 1.0 μM (filled square), 5.0 μM (filled triangle). Values represent the mean of two independent experiments; error bars indicate the standard deviation.Back to article page