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Characterization of surface oxide films on titanium and adhesion of osteoblast

Paper ID Volume ID Publish Year Pages File Format Full-Text
12125 779 2003 8 PDF Available
Title
Characterization of surface oxide films on titanium and adhesion of osteoblast
Abstract

The relationship between surface characteristics of titanium and initial interactions of titanium-osteoblasts was investigated. Titanium plates were heat-treated in different oxidation atmospheres. The third passage rabbit osteoblasts were cultured on the titanium plates for 24 h. After the heat-treatment, the crystal structure of the surface oxide films on titanium was identified using X-ray diffractometer and X-ray photoelectron spectroscopy (XPS). The surface roughness of titanium was measured with a profilometer. The surface energy was obtained by measurement of contact angles and calculation with Owens–Wendt–Kaeble's equation. The amount of surface hydroxyl (OH)s groups was examined using XPS. The change of binding energy of the some elements on the substrate surface suggested that the interactions between the cells and the titanium involved chemical reactions. The greater surface roughness, higher surface energy and more surface hydroxyl groups resulted in greater numbers of adhered osteoblasts and higher cell activity. Compared to the acidic hydroxyl (OH)a groups in (OH)s groups and the dispersion component of the total surface energy, the basic hydroxyl (OH)b groups and the polar component play more important roles in the osteoblast–titanium interaction.

Keywords
Titanium; Oxide film; Osteoblast; Characteristics; Interaction
First Page Preview
Characterization of surface oxide films on titanium and adhesion of osteoblast
Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 24, Issue 25, November 2003, Pages 4663–4670
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering