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Processing and Development of Nano-Scale HA coatings for Biomedical Application

Published online by Cambridge University Press:  01 February 2011

Afsaneh Rabiei*
Affiliation:
Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC, 27695-7910, U.S.A.
Brent Thomas
Affiliation:
Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, 27695-7910, U.S.A.
*
* Corresponding Author
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Abstract

Functionally graded Hydroxyapatite coating with graded Crystallinity across the thickness of the film has been processed and tested as a more effective orthopedic/ dental implant coating. The present study aims to increase the service-life of an orthopedic/ dental implant by creating materials that form a strong, long lasting, bond with the Ti substrate as well as juxtaposed bone. The health relatedness of the new material is to increase bonding between an implant and juxtaposed bone so that a patient who has received joint or dental replacement surgery may quickly return to a normal active lifestyle. Cross-sectional transmission electron microscopy analysis displayed that the films have a graded crystal structure with the crystalline layer near the substrate and the amorphous layer at the top surface. Compositional analysis was performed using SEM-EDX at the top surface as well as STEM-EDX at the cross section of the film. The average calcium to phosphorous ratio at the surface is 1.46, obtained by SEM-EDX. The Ca/P ratios in the crystalline and amorphous layers of the film are 1.6 to 1.7, close to the ratio of 1.67 for HA.

Type
Research Article
Copyright
Copyright © Materials Research Society 2005

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References

REFERENCES

1. Lacefield, W.R., Hydroxyapatite coating. Ann NY Acad Sci 523 (1988), pp. 7280.Google Scholar
2. Hench, L.L., Bioceramics. J Am Ceram Soc 81 (1998), pp. 17051728.Google Scholar
3. Suchanek, W. and Yoshimura, M., Processing and properties of hydroxyapatite-bases biomaterials for use as hard tissue replacement implants. J Mater Res 13 (1998), pp. 94117.Google Scholar
4. LeGeros, R.Z., Biodegradation and bioresorption of calcium phosphate ceramics. Clin Mater 14 (1993), pp. 6588.Google Scholar
5. Wang, S., Lacefield, W.R. and Lemons, J.E., Interfacial shear strength and histology of plasma sprayed and sintered hydroxyapatite implants in vivo. Biomaterials 17 (1996), pp. 19651970.Google Scholar
6. van Dijk, K., Schaeken, H.G., Wolke, J.G.C. and Jansen, J.A., Influence of annealing temperature on r.f. magnetron sputtered calcium phosphate coatings. Biomaterials 17 (1996), pp. 405410.Google Scholar
7. Ong, J.L., Lucas, L.C., Lacefield, W.R. and Rigney, E.D., Structure, solubility and bond strength of thin calcium phosphate coatings produced by ion beam sputter deposition. Biomaterials 13 (1992), pp. 249254.Google Scholar
8. Chen, T.S. and Lacefield, W.R., Crystallization of ion beam deposited calcium phosphate. J Mater Res 9 (1994), pp. 12841290.Google Scholar
9. Yoshinari, M., Ohtsuka, Y. and Derand, T., Thin hydroxyapatite coating produced by the ion beam dynamic mixing method. Biomaterials 15 (1994), pp. 529535.Google Scholar
10. Choi, J.M., Kong, Y.M., Kin, S., Kim, H.E., Hwang, C.S. and Lee, L.S., Formation and characterization of hydroxyapatite coating layer on Ti-based metal implant by electron beam deposition. J Mater Res Soc 14 (1999), pp. 29802985.Google Scholar
11. Singh, R.K., Qian, F., Nagabushnam, V., Damodaran, R. and Moudgil, B.M., Excimer laser deposition of hydroxyapatite thin films. Biomaterials 15 (1994), pp. 522528.Google Scholar
12. Cotell, C.M., Chrisey, D.B., Grabowski, K.S. and Spregue, J.A., Pulsed laser deposition of hydroxyapatite thin films on Ti–6Al–4V. J Appl Biomater 8 (1992), pp. 8793.Google Scholar
13. Ducheyne, P., Raemdonck, W.V., Heughebaert, J.C. and Heughebaert, M., Sturctural analysis of hydroxyapatite coating on titanium. Biomaterials 7 (1986), pp. 97103.Google Scholar
14. Tsui, Y.C., Doyle, C. and Clyne, T.W., Plasma sprayed hydroxyapatite coating on titanium substrates. Part 1: mechanical properties and residual stress levels. Biomaterials 17 (1998), pp. 20152029.Google Scholar
15. Zyman, Z., Weng, J., Liu, X., Zhang, X. and Ma, Z., Amorphous phase and morphological structure of hydroxyapatite plasma coatings. Biomaterials 14 (1993),Google Scholar
16. Ji, H. and Marquis, P.M., Effect of heat treatment on the microstructure of plasma-sprayed hydroxyapatite coating. Biomaterials 14 (1933), pp. 6468.Google Scholar
17. Chen, J., Wolke, J.G.C. and de Groot, K., Microstructure and crystallinity in hydroxyapatite coatings. Biomaterials 15 (1994), pp. 396399.Google Scholar
18. Brossa, F., Cigada, A., Chiesa, R., Paracchini, L. and Consonni, C., Post-deposition treatment effects on hydroxyapatite vacuum plasma spray coatings. J Mater Sci Mater Med 5 (1994), pp. 855857.Google Scholar
19. Chen, J., Tong, W., Coa, Y., Feng, J. and Zhang, X., Effect of atmosphere on phase transformation in plasma sprayed hydroxyapatite coatings during heat treatment. J Biomed Mater Res 34 (1997), pp. 1520.Google Scholar
20. Gross, K.A., Gross, V. and Berndt, C.C., Thermal analysis of amorphous phases in hydroxyapatite coatings. J Am Ceram Soc 81 (1998), pp. 106112.Google Scholar
21. Ding, S., Ju, C., Lin, J., J. Biomedical Mater. Res. 44 (1999) 266.Google Scholar
22. Kaufman, H. R. and Robinson, R. S., Operation of Broad-Beam Sources. Commonwealth Scientific Corporation Alexandria VA 1987 p. 116.Google Scholar
23. Lewis, G., Biomed. Mater. Eng. 10 (2000) 157.Google Scholar
24. Cao, Y., Weng, J., Chen, J., Feng, J., Yang, Z. and Zhang, X., Biomaterials 17 (1996) 419.Google Scholar
25. Rabiei, A., Thomas, B., Neville, B., Lee, J. W., and Cuomo, J., Mat. Sci. & Eng. C, in reviewGoogle Scholar
26. Luo, Z. S., Cui, F. Z. and Li, W. Z., J. Biomed. Mater. Res. 46 (1996) 80.Google Scholar
27. Ozeki, K., Yuhta, T., Fukui, Y. and Aoki, H., Surf. Coat. Technol. 160 (2002) 54.Google Scholar
28. Feddes, B., Vredenberg, A. M., Wolke, J. G. C. and Jansen, J. A., Surf. Coat. Technol. 185 (2004) 346.Google Scholar
29. van Dijk, K., Schaeken, H G., Wolke, J. G. C. and Jansen, J. A, Biomaterials 17 (1996) 405.Google Scholar