Kinetic parameters and results for DexaP desorption models from MSN

ModelParameter4°C25°C37°C
Zero orderk0 (mg h–1)0.45 ± 0.050.63 ± 0.060.85 ± 0.08
First orderk1 (h–1)0.22 ± 0.020.30 ± 0.030.41 ± 0.04
HiguchikH (mg h–1/2)2.45 ± 0.203.12 ± 0.254.01 ± 0.30
Korsmeyer-Peppasn0.46 ± 0.020.54 ± 0.030.68 ± 0.04

DexaP: dexamethasone phosphate; MSN: mesoporous silica nanoparticle; k0: zero-order related constant; k1: first-order release constant; kH: Higuchi constant; n: diffusional exponent