Abstract
Novel tissue engineering scaffold material porous hydroxyapatite, with interconnected pores, allows tissue fluid circulation and provides nutrient for new bone. In the work, Nano-HA/CS/PVA composites were prepared through a co-precipitation method with (NH4)2HPO4, Ca(NO3)2·4H2O, chitosan(CS) and polyvinyl alcohol (PVA) as raw materials. Frozen with liquid nitrogen, and then the porous scaffolds were fabricated by freeze-drying. Fourier transform infrared spectroscopy (FT-IR) confirmed the presence of chemical bonds among HA, CS and PVA and were discussed. Scanning electron microscopy (SEM) analysis revealed that the composites have interconnected porous structures.
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