| Titanium modified with layer-by-layer sol-gel tantalum oxide and an organodiphosphonic acid: a coating for hydroxyapatite growth. | |
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MedLine Citation:
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PMID: 19481760 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Titanium and its alloys are widely used in surgical implants due to their appropriate properties like corrosion resistance, biocompatibility, and load bearing. Unfortunately when metals are used for orthopedic and dental implants there is the possibility of loosening over a long period of time. Surface modification is a good way to counter this problem. A thin tantalum oxide layer obtained by layer-by-layer (LBL) sol-gel deposition on top of a titanium surface is expected to improve biocorrosion resistance in the body fluid, biocompatibility, and radio-opacity. This elaboration step is followed by a modification of the tantalum oxide surface with an organodiphosphonic acid self-assembled monolayer, capable of chemically binding to the oxide surface, and also improving hydroxyapatite growth. The different steps of this proposed process are characterized by surfaces techniques like contact angle, X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM). |
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Authors:
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C Arnould; C Volcke; C Lamarque; P A Thiry; J Delhalle; Z Mekhalif |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-04-14 |
Journal Detail:
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Title: Journal of colloid and interface science Volume: 336 ISSN: 1095-7103 ISO Abbreviation: J Colloid Interface Sci Publication Date: 2009 Aug |
Date Detail:
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Created Date: 2009-06-29 Completed Date: 2009-09-02 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0043125 Medline TA: J Colloid Interface Sci Country: United States |
Other Details:
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Languages: eng Pagination: 497-503 Citation Subset: IM |
Affiliation:
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Laboratory of Chemistry and Electrochemistry of Surfaces, Research Centre in Physics of Matter and Radiation, University of Namur, FUNDP, Rue de Bruxelles 61, B-5000 Namur, Belgium. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Coated Materials, Biocompatible
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chemistry* Durapatite Organophosphorus Compounds / chemistry* Oxides / chemistry* Phase Transition Phosphonic Acids / chemistry* Surface Properties Tantalum / chemistry* Titanium / chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Coated Materials, Biocompatible; 0/Organophosphorus Compounds; 0/Oxides; 0/Phosphonic Acids; 1306-06-5/Durapatite; 59763-75-6/tantalum oxide; 7440-25-7/Tantalum; 7440-32-6/Titanium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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