Figure 1: Photosensitizer uptake by S91 melanoma cells in vitro. (A) The accumulation of the photosensitizers estimated fluorometrically from acetone cell extracts.(B) Dependence of photosensitizer emission intensity on its concentration in the incubation medium measured directly in tumor cells. (C) Kinetics of photosensitizer cellular uptake measured fluorometrically directly from tumor cells grown in vitro using Tecan reader (see the text for details). |