Fig. 6From: Hydrophobic insertion-based engineering of tumor cell-derived exosomes for SPECT/NIRF imaging of colon cancerBiodistribution analysis of different time points (6, 12, 18 and 24 h) after the injection 99mTc-TEx-Cy7. a Tumor uptakes of different time points. b, c Tumor/Muscle ratios, Tumor/Liver ratios of different time points. d Tissues uptakes of HCT116 tumor-bearing mice at 18 h after injection. All bars represent means ± SD (n = 3). *P < 0.05; **P < 0.01; ***P < 0.001Back to article page