Preparation and Drug-Release Kinetics of Porous Poly(L-lactic acid)/Rifampicin Blend Particles

Table 2

Best-fit parameters obtained from the analysis of release profiles.

𝐶PLLA/wt%	Method	𝑏	𝑡𝑖/10^2 s	𝐷/m^2 s^−1
2.0	Drop	0.55	12.5	1.2×10^−11
2.0	Spray	0.64	0.4	8.7×10^−14
4.9	Drop	0.16	0	8.9×10^−13
4.9	Spray	0	1.4	2.6×10^−14
2.0	Adsorption	0.26	0	2.2×10^−10
5.0	Adsorption	0.31	0	1.4×10^−10
8.0	Adsorption	0	0	3.8×10^−11