Figure 6. Tumor imaging and biodistribution of nanofiber and precursor.

Ex vivo fluorescence imaging of tumor tissue and major organs of mice after intravenously injection of (A) nanofiber and (B) precursor. Fluorescence images of tissue slices from mice treated with (C) nanofiber and (D) precursor. The mice were sacrificed at 24 h post-injection. For (C) and (D), the cell nuclei were stained with DAPI. Scale bar: 200 μm for all the fluorescence images in (C) and (D).