Preparation and Drug-Release Kinetics of Porous Poly(L-lactic acid)/Rifampicin Blend Particles
Figure 3
SEM images of the surface and interior of PLLA/rifampicin blend particles prepared by the spray freeze-drying method. (a) = 2.0 wt%, surface, (b) = 2.0 wt%, interior, (c) = 4.9 wt%, surface, and (d) = 4.9 wt%, interior.
