Figure 5.

Fluorescence microscope images of HeLa cells incubated with complexes of 1a–1e (20 μM) with Cu²⁺ (100 μM) for 0.5 h (A1–E1) and Lyso-Tracker Red for 0.5 h (A2–E2). Bright field images of 1a–1e (A4–E4). The scale bar in the figure is 15 μm.