Fig. 7From: “Oil-soluble” reversed lipid nanoparticles for oral insulin deliveryRepresentative fluorescence microscopy images of transwell membranes covered with a layer of Caco-2 cells and incubated for 5 h with ORLN-FITC-insulin containing various concentrations of PC. Images were taken at ×40 magnification. The images show DAPI-labeled nuclei (blue color), FITC-insulin (green color), and merged images of Caco-2 cellsBack to article page