Figure 4.
(a) Chemical structure of metal-organic dyad [Ru(bpy)2(5-PEP)]Cl2 (only Λ isomer shown), (b) (Photo)cytotoxicity against SKMEL28 melanoma cells for [Ru(bpy)2(5-PEP)]2+ with and without transferrin (Tf). PS=photosensitizer. (c) Immunomodulatory potential of [Ru(bpy)2(5-PEP)]Cl2 (100 nM) toward B16F10 melanoma cells. The light treatment was 100 J cm−2 of broadband visible (400–700 nm) light delivered at a rate of ~28 mW cm−2. The PS-to-light interval was 16 h.