Fig. 10
From: Penetration of CdSe/ZnS quantum dots into differentiated vs undifferentiated Caco-2 cells
Intracellular localization of QD-NH2 in undifferentiated Caco-2 cells. Confocal images of undifferentiated Caco-2 cells incubated for 3 days with QD-NH2 (45 µg cadmium ml−1). Early endosomes (EEA1) are depicted in grey a. Orthogonal views (xy, xz and yz) showing the intersection planes at the position of the yellow cross-hair. b Maximum intensity projection of the same z-stack. QDs (magenta), cell membrane (cyan), and nucleus (yellow)