Confocal light scanning microscopy (CLSM) images of SLN and NLC with Caco-2 and Caco-2/HT29-MTX co-cultured cells monolayers after 2 h incubation at 37 °C (x25). The green channel indicates rhodamine-phalloidin and the DiD-loaded nanoparticles are indicated by the red channel. Reprinted from Dumont et al. (2020) with permission from Elsevier.

SLN: solid lipid nanoparticles; NLC: nanostructured lipid carriers.