Material Responsive conditionpH Korsmeyer-Peppas model Mechanism K(h-n) R2 n MCM-NH2-Quer 2.5 0.293 0.909 0.572 Non-Fickian or anomalous diffusion KCC-NH2-Quer 2.5 0.377 0.910 0.548 Non-Fickian or anomalous diffusion MCM-NH2-Quer 5 0.394 0.918 0.520 Non-Fickian or anomalous diffusion KCC-NH2-Quer 5 1.246 0.906 0.340 Fickian diffusion MCM-NH2-Quer 7.5 3.330 0.958 0.243 Fickian diffusion KCC-NH2-Quer 7.5 1.480 0.931 0.475 Non-Fickian or anomalous diffusion   GSH         MCM-NH2-Quer 0.5 mM 0.063 0.934 1.2 Zero-order KCC-NH2-Quer 0.5 mM 0.274 0.964 0.934 Zero-order MCM-NH2-Quer 2.5 mM 0.170 0.903 0.868 Zero-order KCC-NH2-Quer 2.5 mM 2.199 0.971 0.371 Fickian diffusion MCM-NH2-Quer 10 mM 0.324 0.939 0.680 Non-Fickian or anomalous diffusion KCC-NH2-Quer 10 mM 1.893 0.974 0.409 Fickian diffusion K: rate constant, R: correlation coefficient, n: release exponent.

Table 3: The Korsmeyer–Peppas model fits of quercetin release from two types of MSNs under different pH and GSH conditions.