Figure 2: Evolution of luminescence colours of bio-MOF-1⊃DMASM.

(a–d) Fluorescence microscopic images and emission spectra of bio-MOF-1⊃DMASM with different dye content of 0 (a), 0.04% (b), 0.14% (c) and 40.00% (d) illuminated with ultraviolet light around 340 nm.