Effect of surface roughness of Ti, Zr, and TiZr on apatite precipitation from simulated body fluid

Chen, Xiaobo, Nouri, Alireza, Li, Yuncang, Lin, Jianguo, Hodgson, Peter and Wen, Cui'e 2008, Effect of surface roughness of Ti, Zr, and TiZr on apatite precipitation from simulated body fluid, Biotechnology and bioengineering, vol. 101, no. 2, pp. 378-387, doi: 10.1002/bit.21900.

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Title Effect of surface roughness of Ti, Zr, and TiZr on apatite precipitation from simulated body fluid
Author(s) Chen, Xiaobo
Nouri, Alireza
Li, Yuncang
Lin, Jianguo
Hodgson, Peter
Wen, Cui'e
Journal name Biotechnology and bioengineering
Volume number 101
Issue number 2
Start page 378
End page 387
Total pages 10
Publisher John Wiley & Sons
Place of publication Malden, Mass.
Publication date 2008-10-01
ISSN 0006-3592
1097-0290
Keyword(s) surface roughness
apatite
titanium
titanium-zirconium alloy
biomaterials
simulated body fluid
Summary Some of the critical properties for a successful orthopedic or dental implant material are its biocompatibility and bioactivity. Pure titanium (Ti) and zirconium (Zr) are widely accepted as biocompatible metals, due to their non-toxicity. While the bioactivity of Ti and some Ti alloys has been extensively investigated, there is still insufficient data for Zr and titanium-zirconium (TiZr) alloys. In the present study, the bioactivity, that is, the apatite forming ability on the alkali and heat treated surfaces of Ti, Zr, and TiZr alloy in simulated body fluid (SBF), was studied. In particular, the effect of the surface roughness characteristics on the bioactivity was evaluated for the first time. The results indicate that the pretreated Ti, Zr and TiZr alloy could form apatite coating on their surfaces. It should be noted that the surface roughness also critically affected the bioactivity of these pretreated metallic samples. A surface morphology with an average roughness of approximately 0.6 microm led to the fastest apatite formation on the metal surfaces. This apatite layer on the metal surface is expected to bond to the surrounding bones directly after implantation.
Language eng
DOI 10.1002/bit.21900
Field of Research 090301 Biomaterials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2008, Wiley Periodicals, Inc
Persistent URL http://hdl.handle.net/10536/DRO/DU:30017235

Document type: Journal Article
Collections: Centre for Material and Fibre Innovation
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