Fig. 6
a H&E-stained tissue sections of major organs (heart, liver, spleen, lungs, kidneys, and bladders) isolated from mice after different treatments. Scale bar: 50 μm. b US images of the mouse bladder after 3 months of Fe3O4@Chl/Fe-CPBA(+) treatment. c Fluorescence image of the mouse bladder treated with Fe3O4@Chl/Fe-CPBA for 1 h. Scale bar: 50 μm. d Organ biodistribution studies of Fe3O4@Chl/Fe-CPBA CNPs in major organs following bladder administration. Organ biodistribution profiles at a variety of times post-injection