Fig. 5From: Synovium microenvironment-responsive injectable hydrogel inducing modulation of macrophages and elimination of synovial fibroblasts for enhanced treatment of rheumatoid arthritisBiodistribution of Free Cy5 and Cy5@IOK in vivo. A In vivo fluorescence images of AIA rats. The images were recorded at Day 0, 1, 4, 7. B Ex vivo fluorescence images of right hind paws and major organs dissected from AIA ratsBack to article page