XPS analysis of sol-gel-generated mixed-oxide layers for biomedical application
| Autor: | Karin Schenk-Meuser, V. Biehl, Heinz Duschner, E. Eisenbarth, J. Breme, D. Velten |
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| Rok vydání: | 2002 |
| Předmět: |
Materials science
Analytical chemistry Oxide chemistry.chemical_element Surfaces and Interfaces General Chemistry Condensed Matter Physics Surfaces Coatings and Films chemistry.chemical_compound Adsorption X-ray photoelectron spectroscopy Chemical engineering chemistry Materials Chemistry Mixed oxide Layer (electronics) Sol-gel Titanium Protein adsorption |
| Zdroj: | Surface and Interface Analysis. 34:59-62 |
| ISSN: | 1096-9918 0142-2421 |
| Popis: | The excellent biocompatibility of titanium and its alloys is associated with the properties of their dense TiO2 layer on the surface. The adsorption of proteins of the body fluid to implant surfaces depends on the properties of the surface oxide layer, especially the electronic structure. Therefore, tailoring of the oxide layer is a method for influencing protein adsorption. In this study, titanium platelets are coated by the sol–gel process with mixed oxides containing the biocompatible elements Ti, Nb, Zr and Ta. In order to verify the composition of the produced oxide layer, which can differ from the adjusted precursor composition in the sol because of different reactivities of the precursors, the layers were analysed with x-ray photoelectron spectroscopy by carrying out sputter profiles. It was proved that the composition of a mixed-oxide layer prepared by the sol–gel process can be tailored by the use of mixed precursors. Copyright © 2002 John Wiley & Sons, Ltd. |
| Databáze: | OpenAIRE |
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