Fig. 4From: Enhanced oral delivery of insulin via the colon-targeted nanocomposite system of organoclay/glycol chitosan/Eudragit®S100CLSM images showing the intracellular trafficking of FITC-Ins from different formulations in Caco-2 cells. The first panel shows DAPI-stained nuclei, and the second panel displays the green fluorescence produced by FITC. Scale bar represents 10 μmBack to article page