MoS2-based NSs enter cells through clathrin-dependent, caveolin-dependent, and macropinocytosis pathways. Confocal images of (a) EGFP-clathrin-transfected, (b) EGFP-caveolae-transfected, and (c) EGFP-Rab34-transfected Hela cells incubated with fluorescent MoS2-based NSs (10 μg/mL) for 2 h. (d) Scatterplot of red and green pixel intensities of the cells shown in (a–c). Confocal images of (e) EGFP-clathrin-transfected, (f) EGFP-caveolae-transfected, and (g) EGFP-Rab34-transfected MCF-7 cells incubated with fluorescent MoS2-based NSs (10 μg/mL) for 2 h. (h) Scatterplot of red and green pixel intensities of the cells shown in (e–g). Scale bars: 10 μm.