Fig. 3
In vivo bimodal fluorescence imaging and T1-weighted MR imaging. a Fluorescence imaging of nude mice injected with Cyp-PMAA-Fe, Cyp-PMAA-Fe@RBCs and Cyp-PMAA-Fe@MSCs. Tumor regions were marked with red circles. b Fluorescence intensity data at different time points at the tumor sites. c Fluorescence intensity of Cypate in tumors and major organs at 28 h after i.v. injection. d T1-weighted MR signal at tumor sites before and 28 h after i.v. injection of Cyp-PMAA-Fe@MSCs. e T1-weighted MR imaging of LLC1 tumor-bearing mouse before (left) and 28 h after (right) intravenous injection of Cyp-PMAA-Fe@MSCs. Tumor regions were colored