A Comprehensive Tutorial on In Vitro Characterization of New Photosensitizers for Photodynamic Antitumor Therapy and Photodynamic Inactivation of Microorganisms

Figure 3

Experimental variants for analysis of overall tumor cell viability following PDT. Under constant PS conditions or constant light fluence, the light fluence or the PS concentration can be varied to obtain initial information on the phototoxic effects of a particular PS. DC: dark controls (PS without light); PS: photosensitizer; UTC: untreated control (no PS, no light).