Figure 2From: Comparison of In vitro Nanoparticles Uptake in Various Cell Lines and In vivo Pulmonary Cellular Transport in Intratracheally Dosed Rat ModelNanoparticle uptake in Caco-2 cells. The pyrene or charcoal was applied in a separated set of cells. (a) control cells; (b) Caco-2 cell incubated with charcoal nanoparticles for 4 h; (c) Caco-2 cells incubated with pyrene nanoparticles for 4 hBack to article page