Figure 6.

Biodistribution and tumor targeting. (A) Fluorescence imaging of 4T1 tumor-bearing Balb/C mice after intravenous injection with IR783 labelled nanoparticles at an IR783 dose of 1 mg/kg, according to body weight. (B) Ex vivo fluorescence images of the heart, liver, spleen, kidney, lung, and tumors harvested from the mice at 8 h after administration and (C) mean fluorescence intensity of the IR 783 signal in each preparation group. The data are presented as mean ± s.e.m. (n = 3, *P < 0.05).