Figure 2.

Lethal photosensitization of Staph. aureus ●, Strep. pyogenes □ with 25,50, 100 and 200 μg ml^-1 ICG, and P. aeruginosa ▲ with 25,50, 100, 200 and 250 μg ml^-1 ICG. An equal volume of the appropriate ICG concentration (L+S+) was added to each bacterial suspension, samples were left for 10 minutes in the dark and then irradiated at a fluence rate of 1.37 W cm^-2 with light dose of 411 J cm^-2 from a NIR 808 nm laser.