Coating of metal implant materials with strontium
| Autor: | Marina Rubert, S. Petter Lyngstadaas, Martin S. Walter, Håvard J. Haugen, Hanna Tiainen, Marta Monjo, Matthias Johannes Frank |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Biomedical Engineering Biophysics Mineralogy chemistry.chemical_element Bioengineering engineering.material Biomaterials chemistry.chemical_compound Mice Hydrofluoric acid X-ray photoelectron spectroscopy Coating Coated Materials Biocompatible Pickling Animals Surface layer Dental Implants Strontium Photoelectron Spectroscopy 3T3 Cells chemistry Chemical engineering Metals engineering Fluorine Microscopy Electron Scanning Surface modification |
| Zdroj: | Journal of materials science. Materials in medicine. 24(11) |
| ISSN: | 1573-4838 |
| Popis: | The aim of this study was to show that cathodic polarization can be used for coating commercial implant surfaces with an immobilized but functional and bioavailable surface layer of strontium (Sr). Moreover, this study assessed the effect of fluorine on Sr-attachment. X-ray photoelectron spectroscopy revealed that addition of fluorine (F) to the buffer during coating increased surface Sr-amounts but also changed the chemical surface composition by adding SrF2 alongside of SrO whereas pre-treatment of the surface by pickling in hydrofluoric acid appeared to hinder Sr-attachment. Assessment of the bio-availability hinted at a positive effect of Sr on cell differentiation given that the surface reactivity of the original surface remained unchanged. Additional SrF2 on the surface appeared to reduce undesired surface contamination while maintaining the surface micro-topography and micro-morphology. Anyhow, this surface modification revealed to create nano-nodules on the surface. |
| Databáze: | OpenAIRE |
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