Fig. 7

Biosafety and distribution of nanoparticles in vivo. a–c The BUN, ALT, and AST index in peripheral blood were detected. d HE staining for major organs of mice. Scale bar, 10 μm. e Fluorescence images of major organs and bones anatomized from mice 24 h post intravenous injection of transferrin targeted Ab@Tf-Cou6-PLGA NPs and non-targeted Ab@Cou6-PLGA NPs