Hydroxyapatite Formation on Alumina Surface Modified by Aluminoxane


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The surface of alumina discs (γ phase) was modified by the reaction between the Al-OH groups on the surface of alumina and oxalic acid, resulting in carboxylatoaluminoxanes. The alumina discs with modified surface were soaked in SBF for 6 hours, promoting an intense precipitation of calcium phosphate. The formation of evenly distributed calcium phosphate crystals controlled by the alumina surface, achieved in this work, has the potential to significantly modify the bioinert behavior presented by this material.



Key Engineering Materials (Volumes 330-332)

Main Theme:

Edited by:

Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu




C. A. Bertran et al., "Hydroxyapatite Formation on Alumina Surface Modified by Aluminoxane", Key Engineering Materials, Vols. 330-332, pp. 753-757, 2007

Online since:

February 2007




[1] T. Takaoka, M. Okumura, H. Ohgushi, K. Inoue, Y. Takakura and S. Tamai: Biomat. Vol. 17 (1996), p.1499.

[2] N. Ozawa, Y. Ideta, K. Shimizu and T. Yao: Key Eng. Mat. Vol. 240 (2003), p.67.

[3] S. Shinzato, Y. Nakamura, K. Goto and T. Kokubo: Key Eng. Mat. Vol. 284-286 (2005), p.133.

[4] D. Korn, G. Soyez, G. Elssner and G. Petzow: J. Mat. Sci. Mat. Med. Vol. 8 (1997), p.613.

[5] D.J. Kim, J.S. Han, Y.J. Lim, K.S. Jang and C.Y. Ahn: Key Eng. Mat. Vol. 309-311 (2006), p.433.

[6] C.C. Landry, N. Pappé, M.R. Masson, A.W. Aplett, A.N. Tyler: A.N. Maclnnes, A.R. Barron: J. Matter. Chem. Vol. 5 (1995), p.331.

[7] C.A. Bertran, C.C. Osawa, M.I.F. Macedo: J. Sol-Gel Sci. Tec. Vol. 30 (2004), p.135.