Figure 3

Fluorescence microscopic images of Zn²⁺ detection in C6 Glioma cells using BP. DIC, fluorescence and overlay images of cells incubated with BP alone (a,b,c) and cells pre- treated with Zn²⁺ and then incubated with BP (d,e,f). Magnification 40 × and scale bar = 20 µm.