摘要:通过碳二亚胺法将精氨酸-甘氨酸-天冬氨酸(RGD)接枝到羟基磷灰石(HA)颗粒表面,增强HA颗粒识别细胞的功能,然后将其均匀地分布于左旋聚乳酸(PLLA)中制备多孔复合材料,分别用XPS和SEM等对HA颗粒和多孔复合材料进行了表征。结果表明:RGD成功地接枝到了HA颗粒表面,多孔复合材料中RGD功能化的HA颗粒是纳米尺寸的,且分布均匀;RGD功能化HA/PLLA多孔复合材料的细胞粘附率从普通HA/PLLA多孔复合材料的37.21%提高到了69.11%。
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