Novel Hydroxyapatite Coating on Alumina by Electrospraying

Abstract:

Electrospraying of nano-sized hydroxyapatite (HA) has been used as a technique to modify the surface of alumina in order to achieve the goal of improving bone integration. A porous HA coating on alumina was produced by heat treating electrsprayed HA. Preliminary in vitro studies shown that this porous HA coating provided a favourable surface for attachment and growth of HOB cells. The results indicate that electrospraying is a very promising technique to create thin HA coatings on a range of biomedical implants to improve interfacial bonding with the host tissue.

• Periodical: Key Engineering Materials (Volumes 284-286)
• Pages: 191-194
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.284-286.191
• Online since: April 2005
• Authors: Jie Huang, Serena Best, S.N. Jayasinghe, Mohan J. Edirisinghe, William Bonfield
• Keywords: Aluminum (Al), Electrospraying, Hydroxyapatite (HAP), Nanosized, Porous Coating

References

[1] L.L. Hench and D.C. Greenspan, US patent 4103002, (1978).

[2] T. Takaoka, et al., Biomaterials, 17 (1996), 1499-1505.

[3] S.R. Radin and P. Ducheyne, J. Mater. Sci., Mater. Med., 3 (1992), 33-42.

[4] J. Huang, et al., J. Mater. Sci. Lett. 39 (2004), 1029-1032.

[5] M. C. Siebers, et al., Biomaterials, 25 (2004), 2019-(2027).

[6] S. N. Jayasinghe and M. J. Edirisinghe, Int. J. Appl. Ceram. Tech., 1 (2004), 140-145.

[7] J. Huang, et al., J. Mater. Sci., Mater. Med., 15 (2004), 441- 445.