Nanocomposites of Polyacrylic Acid Nanogels and Biodegradable Polyhydroxybutyrate for Bone Regeneration and Drug Delivery
Figure 4
SEM micrographs showing the cross-sections of swollen and subsequently freeze-dried PHB films with different PAA nanogel content: (a) PHB; (b) (w/w) PAA; (c) (w/w) PAA.
