Fig. 4
From: Effects of silver nanoparticles and ions on a co-culture model for the gastrointestinal epithelium
IL-8 release. IL-8 release in exposed Caco-2/TC7, HT29-MTX cells and their co-culture to (a) AgNO3 and (b) Ag 20 and 200 nm particles. Differentiated cells (after 14 days of culture) were exposed for 24 h. Error bars represent the mean ± SD of 3 independent experiments performed in duplicate. Significant differences from respective untreated controls are marked with asterisks (* for P < 0.05)