Biomedical Polymer Surface Modification of Beta-Type Titanium Alloy for Implants through Anodic Oxide Nanostructures

Article Preview

Abstract:

Anodic oxide nanostructures (nanopores and nanotubes) were formed on a biomedical β-type titanium alloy, Ti–29Nb–13Ta–4.6Zr alloy (TNTZ), in order to improve adhesive strength by the anchor effect of a segmented polyurethane (SPU) with soft tissue compatibility. The nanotube structure was formed beneath the nanoporous structure. The adhesive strength between the SPU coating and the nanoporous structure formed on TNTZ by anodization is more than 1.5 times that of an SPU coating on as-polished TNTZ with a mirror finish. After removal of the nanoporous structure by etching with HF solution, the adhesive strength of the SPU coating on the exposed nanotube structure is decreased.

You might also be interested in these eBooks

Info:

Periodical:

Materials Science Forum (Volumes 783-786)

Pages:

1261-1264

Citation:

Online since:

May 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] D. Kuroda, M. Niinomi, M. Morinaga, Y. Kato, T. Yashiro, Design and mechanical properties of new b type titanium alloys for implant materials, Mater. Sci. Eng. A 243 (1998) 244–249.

DOI: 10.1016/s0921-5093(97)00808-3

Google Scholar

[2] M. Niinomi, M. Nakai, J. Hieda, Development of new metallic alloys for biomedical applications, Acta Biomater. 8 (2012) 3888–3903.

DOI: 10.1016/j.actbio.2012.06.037

Google Scholar

[3] M. Yoshinari, K. Matsuzaka, T. Inoue, Y. Oda, M. Shimono, Bio-functionalization of titanium surfaces for dental implants, Mater. Trans. 43 (2002) 2494–2501.

DOI: 10.2320/matertrans.43.2494

Google Scholar

[4] H. Sakamoto, H. Doi, E. Kobayashi, T. Yoneyama, Y. Suzuki, T. Hanawa, Structure and strength at the bonding interface of a titanium segmented polyurethane composite through 3-(trimethoxy-silyl) propyl methacrylate for artificial organs, J. Biomed. Mater. Res. Part A 82 (2007).

DOI: 10.1002/jbm.a.30957

Google Scholar

[5] J. Hieda, M. Niinomi, M. Nakai, H. Kamura, H. Tsutsumi, T. Hanawa, Effect of terminal functional groups of silane layers on adhesive strength between biomedical Ti–29Nb–13Ta–4. 6Zr alloy and segment polyurethanes, Surf. Coat. Technol. 206 (2012).

DOI: 10.1016/j.surfcoat.2011.12.044

Google Scholar

[6] H. Tsuchiya, J.M. Macák, A. Ghicov, Y.C. Tang, S. Fujimoto, M. Niinomi, T. Noda, P. Schmuki, Nanotube oxide coating on Ti–29Nb–13Ta–4. 6Zr alloy prepared by self-organizing anodization, Electrochim. Acta 52 (2006) 94–101.

DOI: 10.1016/j.electacta.2006.03.087

Google Scholar