Fig. 4. Overlay confocal images of AIE-Red- and AIE-Green-stained HeLa cells after treatment with rapamycin (50 μg mL^–1) at 1 min (A), 30 min (B), and 60 min (C) and the enlarged images at 1 min (D), 30 min (E) and 60 min (F). The scale bars are 20 μm for (A–C) and 5 μm for (D–F).