Fig. 8: In vivo tumor FL imaging and two-photon FL imaging of FACDs@BSA

a In vivo tumor imaging pictures of nude mice before and after (1, 4, 8, 24, 30 and 54 h) intravenous injections of FA-CDs@BSA (FA-CDs: 0.2 mg mL−1, BSA: 20 mg mL−1) and FA-CDs (0.2 mg mL−1) aqueous solutions. b The FL intensities of tumor and neighboring tissue, and IT/IN at several time points before and after intravenous injections of FA-CDs@BSA and FA-CDs aqueous solutions. c Two-photon FL images of blood vessels of mouse ear before and after (10 s and 15 s) intravenous injection of FA-CDs@BSA (FA-CDs: 0.2 mg mL−1, BSA: 20 mg mL−1) aqueous solutions. Dashed lines indicate partial enlargement