Fig. 1. TEM images of MIP(a), NIP(b) and SiO₂(c)

Fig. 2. FTIR spectra of MIP and NIP

Fig. 3. Fluorescence lifetime mapping of MIPs before and after the addition of MG

Fig. 4. Quenching efficiency of MIP and NIP by different drugs (at a concentration of 2.5 μmol·L^-1)

Fig. 5. Kinetic curves of MIPs and Nips

Fig. 6. The degree of Mg fluorescence quenching by MIPS (inset is the fluorescence plot of MIPs before and after the addition of Mg under 365 nm UV lamp)

Fig. 7. Linear relationship between F₀/F and MG concentration