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- 2018
3D打印鹿角粉/聚乙烯醇支架与纳米级羟基磷灰石/聚乙烯醇支架的性能比较
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Abstract:
摘要 目的: 构建一种新型支架材料(鹿角粉/PVA支架),并与n-HA/PVA支架对比,通过检测其理化、生物性能,评价并探讨其作为骨组织工程支架的可行性。方法: 利用3D打印技术,分别制备出鹿角粉/PVA支架、n-HA/PVA支架,进行孔隙率、孔径、吸水率、压缩力学性能及生物相容性的检测。结果: 两组支架孔隙率比较无差别,鹿角粉/PVA孔径大于n-HA/PVA支架(P=0.004);在不同时间点上,n-HA/PVA支架的吸水率大于鹿角粉/PVA支架,但鹿角粉/PVA支架持续吸水的时间较长;两组支架的抗压缩性能无差别(P=0.243),但韧性较n-HA/PVA支架好;鹿角粉/PVA支架细胞相容性优于n-HA/PVA支架。结论: 鹿角粉/PVA支架具有良好的机械力学性能及细胞相容性,可作为异种骨支架材料研究的新方向
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