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SEM micrographs of (A) blank PLGA microspheres, (B) Cur-loaded PLGA microspheres, (C) CHA scaffold, and (D) Cur/CHA scaffold.
Abbreviations: SEM, scanning electron microscopy; PLGA, poly-lactic-co-glycolic acid; Cur, curcumin; CHA, collagen nano-hydroxyapatite; CUR/CHA, curcumin-loaded/collagen nano-hydroxyapatite.
