【摘要】 采用注塑方法,以医用纳米羟基磷灰石/聚酰胺66(n-HA/PA66)复合材料为原料,使用专用发泡剂,制备出了一种具有贯通孔,平均孔隙尺寸约为500μm的多孔材料,并参照GB/T16886和GB/T16175标准方法,对其生物安全性进行了相关评价。细胞毒性试验、致敏试验、热原试验和溶血试验结果表明本研究制备的多孔n-HA/PA66复合材料无细胞毒性、无致敏性、无热原反应,溶血率为0.59%(<5%),可初步认为n-HA/PA66多孔材料具有良好的生物安全性,可用于骨组织修复。更多还原

【Abstract】 Porous nano-hydroxyapatite/polyamide 66 (n-HA/PA66) composite was developed by injection molding method. Uniformly distributed and interconnected pores with an average size of about 500μm in matrix were obtained. The evaluation of biological safety of the porous composite including cell cytoxicity test, sensitivity test, pyrogen test, haemolysis test was carried out according to GB/T16886 and GB/T16175. The results showed that the porous n-HA/PA66 composite was of no cytotoxicity, no allergen and pyrogen reactions as well as no hemolytic effect.更多还原