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Fabrication and characterization of oxygen-diffused titanium for biomedical applications

Paper ID Volume ID Publish Year Pages File Format Full-Text
1887 93 2009 11 PDF Available
Title
Fabrication and characterization of oxygen-diffused titanium for biomedical applications
Abstract

Although titanium has been successful as an orthopedic or dental implant material, performance problems still persist concerning implant–bone interfacial bonding strength. In this study a novel oxygen-diffused titanium (ODTi), fabricated by introducing oxygen into the titanium crystal lattice by thermal treatment, was investigated. The fabricated material is the result of a surface modification made on commercially pure titanium (cp Ti) previously coated with poly(vinyl alcohol) (PVA) by means of a thermal treatment performed at 700 °C in an ultra-pure argon atmosphere. The thermal treatment at 700 °C led to the formation of an anatase TiO2 film on the cp Ti surface and a concentration gradient of oxygen into titanium. The surface of the fabricated ODTi consisted of an outer nanometric layer of anatase TiO2 and an inner nanometric layer of Ti2Ox (x < 1) in which the oxygen is in solid solution with the titanium metal. It was found that ODTi possesses in vitro apatite formation ability after being soaked into simulated body fluid (SBF) solution. This apatite formation ability is attributed to the presence of the anatase TiO2 outermost surface layer and to abundant hydroxyl groups (–OH) formed on the ODTi surface after immersion in SBF.

Keywords
Oxygen-diffused titanium; Anatase TiO2; Thermal oxidation; Simulated body fluid; Bioactivity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 5, Issue 9, November 2009, Pages 3605–3615
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us