Fig. 5From: Mitochondria-targeted nanoplatforms for enhanced photodynamic therapy against hypoxia tumora In vivo FL imaging of 4T1 tumor-bearing mice after intravenous injection of 3BP@PLGA-IR780. b The corresponding FL intensity within tumor region with prolonged circulation time. c The biodistribution of 3BP@PLGA-IR780 in tumor region, liver and spleen (scale bar is 100 μm)Back to article page