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In vitro behavior of human osteoblast-like cells (SaOS2) cultured on surface modified titanium and titanium–zirconium alloy

Chen, Xiaobo, Li, Yuncang, Hodgson, Peter D. and Wen, Cuie 2011, In vitro behavior of human osteoblast-like cells (SaOS2) cultured on surface modified titanium and titanium–zirconium alloy, Materials science and engineering : C, vol. 31, no. 7, pp. 1545-1552.

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Title In vitro behavior of human osteoblast-like cells (SaOS2) cultured on surface modified titanium and titanium–zirconium alloy
Author(s) Chen, Xiaobo
Li, Yuncang
Hodgson, Peter D.
Wen, Cuie
Journal name Materials science and engineering : C
Volume number 31
Issue number 7
Start page 1545
End page 1552
Publisher Elsevier SA
Place of publication Lausanne, Switzerland
Publication date 2011-10-10
ISSN 1873-0191
Keyword(s) apatite
in vitro cytocompatibility
modified simulated body fluid (m-SBF)
surface modification
titanium (Ti)
titanium-zirconium (TiZr) alloy
Summary In this study, titanium (Ti) and titanium-zirconium (TiZr) alloy samples fabricated through powder metallurgy were surface modified by alkali-heat treatment and calcium (Ca)-ion-deposition. The alteration of the surface morphology and the chemistry of the Ti and TiZr after surface modification were examined. The bioactivity of the Ti and TiZr alloys after the surface modification was demonstrated. Subsequently, the cytocompatibility of the surface modified Ti and TiZr was evaluated via in vitro cell culture using human osteoblast-like cells (SaOS2). The cellular attachment, adhesion and proliferation after cell culture for 14 days were characterized by scanning electron microscopy (SEM) and MTT assay. The relationship between surface morphology and chemical composition of the surface modified Ti and TiZr and cellular responses was investigated. Results indicated that the surface-modified Ti and TiZr alloys exhibited excellent in vitro cytocompatibility together with satisfactory bioactivity. Since osteoblast adhesion and proliferation are essential prerequisites for a successful implant in vivo, these results provide evidence that Ti and TiZr alloys after appropriate surface modification are promising biomaterials for hard tissue replacement.
Language eng
Field of Research 090301 Biomaterials
091207 Metals and Alloy Materials
090399 Biomedical Engineering not elsewhere classified
Socio Economic Objective 861206 Structural Metal Products
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2011, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30044383

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