Fig. 6. (a) Ex vivo fluorescence imaging of tumors and major organs at 24 h post injection of DOX, TQ/DOX–PEG and TQ/DOX–PEG–mAb. He: heart, Li: liver, Sp: spleen, Lu: lungs, Ki: kidneys, Tu: tumor. (b) Total fluorescence intensity of tumors and major organs (n = 3). (c) Total fluorescence intensity ratio of tumor to liver (n = 3). **p < 0.01, ***p < 0.001 were measured by One-Way ANOVA.
