Fig. 8From: Impact of in vitro digested zinc oxide nanoparticles on intestinal model systemsFluorescence staining with phalloidin-iFluor 488 (green) and DAPI (blue) after 24 h of incubation with digested ZnO NP (< 50 nm and < 100 nm) and ZnCl2 (614 µM) of Caco-2 monocultured and Caco-2/HT29-MTX cocultured cells. UC: untreated control; SC: solvent control (10% intestinal juice); PC: positive control (0.1% triton X-100 + 10 mM EGTA apical, 10 mM EGTA basolateral); Orange scale bar: 50 μmBack to article page