Figure 7.

(a) Fluorescence emission spectra of ECA aggregates in the presence of different concentrations of CPT-11. (b) Fitting of Eu³⁺ quenching in the presence of CPT-11. (c) The degree of quenching of ECA by different drugs at 1 mM. (d) Fluorescence emission spectra of TCA aggregates in the presence of different concentrations of CPT-11. (e) Fitting of Tb³⁺ quenching in the presence of CPT-11. (f) The degree of quenching of TCA by different drugs at 1 mM. Error bars in e and f represent the standard deviation of n = 3 replicates for each condition.