Fig. 6: In situ CRC imaging with probes.

a FVB-induced CRC tumours at different time after tail vein injection of probes in mice. Fluorescence imaging of post-dissected b abdomen, c intestine, d organs, and e blood. Black to white represents the fluorescence intensity values of Cy5.5-labelled PfCC from low to high. f Blood half-life analysis. FL: Fluorescence. The data are presented as mean ± standard deviation (n = 3 independent mouse). g Fluorescence and bioluminescence imaging of metastatic CRC. Scale bar: 1 cm.