Figure 3.

Enhanced tumor uptake of liposome-ICG and liposomal-Rhodamine facilitated by PDT: (A) Experimental strategy to evaluate enhanced tumor uptake of liposome-ICG in bilateral tumor models by PDT, in the absence (a) or presence (b) of a pork tissue barrier; (B) The tumor:skin ratio in superficial tumor models 24hr after 660 nm light; (C) The tumor: skin ratio in deep-seated tumor models treated with 660 nm light or 980 nm light; (D) Determination of tumor uptake of liposomal Rhodamine by laser confocal microscopy in superficial and deep-seated tumor models treated with 660nm light or 980 nm light.