Fig. 11.
In vivo (A) and ex vivo (B) NIRF optical images of PC-3 tumor-bearing nude mice administered intravenously with DiD-loaded PEG5K-Fmoc-VE2 nanoparticles. Tumors and major organs were excised for ex vivo imaging at 96 h post-injection and the quantitated DiD fluorescence intensity from different organs were presented (C).