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. Author manuscript; available in PMC: 2019 Nov 20.
Published in final edited form as: Adv Funct Mater. 2016 Feb 3;26(11):1757–1768. doi: 10.1002/adfm.201504803

Figure 4.

Figure 4.

Irradiance-dependent PDT effect. P-FRT-RBCs were i.v. injected first (0.75 mg ZnF16Pc kg−1). A 671 nm laser was applied to tumors for 30 min at different irradiances. a) H&E and b) TUNEL assay results, conducted on tumor samples taken 24 h after the PDT. There is an irradiance-dependent PDT effect that caused cancer cell death. While there was a large difference in efficacy between 100 mW cm−2 and 40 or 20 mW cm−2 treated animals, there was no significant improvement of efficacy when further increasing the irradiance. Green, TUNEL. Blue, DAPI. Scale bars: 100 μm.