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采用电沉积方法在钛表面制备氧化石墨烯-羟基磷灰石(Graphene oxide/Hydroxyapatite,GO/HA)复合涂层,通过调整GO的浓度,研究GO对所得涂层晶体结构及生物学性能的影响。采用扫描电镜(SEM)、透射电镜(TEM)、X射线衍射(XRD)仪、傅里叶变换红外光谱(FTIR)、拉曼光谱分析所得涂层的表面形貌和物相构成,用SEM观察涂层表面MG63成骨样细胞生长情况。结果表明,电沉积法可在钛表面制备GO/HA复合涂层,且随GO浓度增加,HA结晶度增加。此外,复合涂层较单纯HA涂层更能促进成骨样细胞早期粘附。
The graphene oxide / hydroxyapatite (GO / HA) composite coating was prepared on the titanium surface by electrodeposition. The effect of GO on the crystal structure and biological properties of the resulting coating was investigated by adjusting the concentration of GO . The surface morphology and phase composition of the resulting coating were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. MG63 osteoblast-like cell growth on the coating surface. The results show that the electrodeposition method can prepare GO / HA composite coating on titanium surface, and with the increase of GO concentration, HA crystallinity increases. In addition, the composite coating can promote the early adhesion of osteoblast-like cells more than HA coating alone.