中文摘要：

通过低温等离子聚合的方法，以丙烯酸为单体在钛表面沉积含有羧基的薄膜，以羧基为接入点固定纤维连接蛋白。样品表面用X射线光电子能谱、傅里叶红外光谱仪进行表征。将固定了纤维连接蛋白的样品进行体外细胞培养，所用的细胞为MG63骨瘤细胞，对照样为纯钛。结果表明，钛表面聚丙烯酸薄膜能有效地固定纤维连接蛋白，并且固定纤维连接蛋白的样品能促进骨瘤细胞的生长和黏附，具有更高的成骨活性。

英文摘要：

The low temperature plasma polymerization was used to introduce carboxyl （--COOH） onto the titanium surface. Fibronectin was immobilized to the surface via --COOH. The surface components were characterized by X- ray photoelectron spectroscopy and Fourier transform infrared reflection spectroscopy. The MG63 ceils were seeded on the surface of the modified samples and the pure titanium was used as control. The results indicate that fibronectin is immobilized on the titanium and the modified samples are beneficial for the growth and adherence of the cells. The osteogenic activity of the samples with immobilized fibronectin is better than that of the pure titanium.