Figure 6.

Live imaging of mPEG-PCL nanoparticle after intravenous administration to rats (A) and fractionized semi-quantification of fluorescence of regions of interest, which is presented as average radiant efficiency (ARE) that stands for the concentration of the nanoparticles: whole body (B), abdomen (C), limbs (D), genitals (E), snouts (F); and corresponding plots of enlargement (0–4 h) G, H, I, J, and K, respectively. Three animals are used for each group but only images of one animal are shown here. Please refer to Supporting Information Fig. S7 for a whole set of images. Data are presented as mean ± SD (n = 3).