Biomimetic Ca-P coating on pre-calcified Ti plates by electrodeposition method |
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Authors: | Xiudong Yang Bo Zhang Jiyong Chen Zhongwei Gu |
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Institution: | a Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, PR China b Department of Chemistry, The State University of New York at Buffalo, NY 14260, USA |
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Abstract: | A new electrodeposition method was presented for Ca-P coating on pre-calcified titanium (PTi) plates at room temperature. The biomimetic coating morphology was investigated by scanning electron microscopy (SEM). X-ray photoelectron spectroscopy (XPS) results indicated that the functional TiOx layer with groups of -Ca and -OH was formed on PTi surface after pre-calcified chemical treatment. The TiOx layer showed a lower water contact angle and lower surface energy than those of pure titanium surfaces, and the PTi surface natures are benefited by coupling biomimetic Ca-P layer with bioactivity in the electrodeposition process. Moreover, the crystallization of Ca-P precipitate and the bond strength of coating to PTi substrates were improved significantly by post-treatments. Our results suggest this new coating process and its subsequent application to biomedical implant devices. |
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Keywords: | Biomimetic coating Titanium Electrodeposition Bioactive |
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