Preparation and Biocompatibility of Tantalum Oxide Films Containing the Hydroxyl Group
Amorphous Ta-O films were synthesized by reactive pulse unbalanced magnetron sputtering system in this paper. Then the well-crystallized Ta-O films were obtained after they were annealed in vacuum at 800°C for 1h. Hydroxyl group on the surface of amorphous tantalum oxide films was prepared by plasma hydrogenation method. The phase structure was investigated by X-ray diffraction (XRD). The hydroxyl group was characterized using Fourier transform infrared spectroscopy (FTIR). The morphology and growth behavior of the vitro platelet adhesion on the as-deposited, annealed and plasma hydrogenated Ta-O films were analyzed through scanning electron microscope (SEM). The results showed that the quantity of platelet adhered onto the annealed surface were less than as-deposited and hydrogenised films. A new method of preparing hydroxyl group without coupling agents on the inorganic biomaterials has been studied by plasma hydrogenation.
Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu
T. Tao et al., "Preparation and Biocompatibility of Tantalum Oxide Films Containing the Hydroxyl Group", Key Engineering Materials, Vols. 330-332, pp. 761-764, 2007