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  • Title: Preparation and evaluation of porous poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) hydroxyapatite composite scaffolds.
    Author: Jing Xi, Ling Zhang, Zhenhu An Zheng, Guoqiang Chen, Yandao Gong, Nanming Zhao, Xiufang Zhang.
    Journal: J Biomater Appl; 2008 Jan; 22(4):293-307. PubMed ID: 18089673.
    Abstract:
    Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) and PHBHHx-hydroxyapatite (HAP) composite scaffolds have been prepared by phase separation and subsequent sublimation of the solvent for bone tissue engineering. Scanning electron microscopy (SEM), porosity measurement, mechanical tests, and thermogravimertric analysis (TGA) are used to analyze the physical properties of the scaffolds. The biocompatibility and osteoconductivity are assessed by examining the morphology, proliferation, and differentiation of MC3T3-E1 osteoprogenitor cells seeded on the scaffolds. The PHBHHx-HAP composite scaffolds show better mechanical properties, biocompatibility, and osteoconductivity than the PHBHHx scaffolds. The results suggest that PHBHHx-HAP composite scaffolds can be employed as a promising candidate for bone reconstruction.
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