Fig. 8. (A) Analysis of apoptotic stages of MCF-7 cells after 12 h treatment with different drugs at 25 μg mL⁻¹. (B) Statistical analysis data graph. Abbreviation: FEVO, free evodiamine; FBBR, free berberine; FEVO/BBR, mechanically mixed free evodiamine and berberine; LEVO/BBR, SiO₂–BBR–Na₂CO₃@EVO-LB; NO, no Na₂CO₃.