Figure 3: Scaffold characterization and resveratrol release profile. (A)SEM image of aresveratrol nanoparticle-incorporated scaffold showing thenanoparticles on the surface of the sintered microsphere scaffolds PLGA.(B) SEM image of a blank PLGA scaffold (control) demonstrating a smoothsurface without nanoparticles. (C) TEM image of individual resveratrolencapsulated nanoparticles. The approximate diameter of nanoparticles was250 nm. (D) Resveratrol release profile from the scaffolds demonstrated aslower and more linear release when encapsulated with a higher molecularweight of PLGA.