CASP3 and neoplasm: Though tumor targeting was observed by fluorescence imaging, injection of 4 nmol of the conjugates and illumination with 150 J/cm2 690 nm light did not lead to changes in tissue morphology of the tumor, cleaved caspase-3 or γH2A.X expression at 24 h after illumination (150 J/cm2 at 170 mW/cm2), when compared to the non-illuminated tumor on the other flank (Figure S9).