Bovine Hydroxyapatite (BHA) Strontium Oxide Composites

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Composites of calcinated bovine bone derived hydroxyapatite (HA) with 5 and 10 wt % SrCO3 were prepared by sintering. The production of HA from natural sources is preferred due to money and time saving reasons. In this study scanning electron microscopy (SEM) investigations and together with measurements of microhardness, density, and compression strength were performed. The experimental results indicated that compression strength and microhardness values of HA-Sr-oxide composites decrease when the content of SrCO3 and sintering temperature increase. The best compression strength values were achieved after sintering at 1000°C. It was seen that at higher temperatures the compression strength and the microhardness values decrease due to the pore formation. The pore formation is very important for scaffold formation for tissue engineering purposes.

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Periodical:

Key Engineering Materials (Volumes 396-398)

Main Theme:

Edited by:

Marcelo Prado and Cecília Zavaglia

Pages:

407-410

Citation:

O. Gunduz et al., "Bovine Hydroxyapatite (BHA) Strontium Oxide Composites", Key Engineering Materials, Vols. 396-398, pp. 407-410, 2009

Online since:

October 2008

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$38.00

[1] J.H.G. Rocha, A.F. Lemos and et al.: Bone, Vol. 37 (2005), p.850.

[2] F.N. Oktar and G. Goller: Ceram. Int. Vol. 28 (2002), p.617.

[3] http: /ami. usc. edu.

[4] M.A. Fanovich and et al.: Mater. Sci. Vol. 33 (1998), p.269.

[5] M.A. Fanovich, M. S. Castro and et al.: Ceram. Int. Vol. 25 (1999), p.517.

[6] F.N. Oktar, M.R. Demirer and et al.: Key Eng. Mater., Vol. 309-311 (2006), p.49.

[7] A.P. M Schainberg, P. Valério, F.N. Oktar, M.F. Leite, A.M. Goes, Evaluation of Osteoblasts Interactions on LiHA Composites, 20th European Conference on Biomaterials, Sep. 27th-Oct 1st, 2006, Nantes, France.

[8] P. Valéiro, A.M. Goes, S. Yilmaz, F.N. Oktar, Influence of Boroxide Containing Bioactive Bioglasses (BBB) on Osteoblast Viability, The 15th Int. Vascular Biology Meeting 1-5 June 2008, Sydney, Australia.

[9] P. Valéiro, F.N. Oktar and et al.: Key Eng. Mater., Vol. 254-2 (2004), p.777.

[10] K. Qui, X.J. Zhao and et al. : Biomaterials Vol. 27 (2005), p.1277.

[11] P. Valéiro, F.N. Oktar, and et al. : Key Eng. Mater., Vol. 254-2 (2004), p.837.