Designing and Fabrication of Nano-Hydroxyapatite and Curcumin-Loaded Chitosan/PVA Nanofibrous Mats for Potential Use as Wound Dressing Biomaterials.

Chitosan/polyvinyl alcohol nanofibrous mats loaded with nano-hydroxyapatite and/or curcumin are successfully fabricated by the electrospinning method for the first time. Nano-hydroxyapatite is prepared by the co-precipitation method. The XRD pattern of calcined powder at 700 °C for 2 h reveals the presence of hydroxyapatite as a sole phase. FT-IR confirms its purity. The morphology of the hydroxyapatite is studied by HR-TEM. Nano-hydroxyapatite and curcumin are added at 5 wt% with respect to the polymer weight. XRD, FE-SEM, FT-IR, and HR-TEM are used to characterize the fabricated nanofibrous mats. The results confirm the successful loading of nano-hydroxyapatite and curcumin within the fabricated mats. The in vitro antimicrobial results show that most of mats have significant antimicrobial effects against and . The fabricated matd are biocompatible with fibroblasts and the presence of curcumin increases cell viability. Curcumin release from both CS/PVA/Cur and CS/PVA/HA/Cur nanofiber mats principally follows the Korsmeyer-Peppas and Peppas-Salhin models.