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Osteoblast adhesion and matrix mineralization on sol–gel-derived titanium oxide

Paper ID Volume ID Publish Year Pages File Format Full-Text
11614 749 2006 12 PDF Available
Title
Osteoblast adhesion and matrix mineralization on sol–gel-derived titanium oxide
Abstract

The biological events occurring at the bone–implant interface are influenced by the topography, chemistry and wettability of the implant surface. The surface properties of titanium alloy prepared by either surface sol–gel processing (SSP), or by passivation with nitric acid, were investigated systematically using X-ray photoelectron spectroscopy, scanning electron microscopy, atomic force microscopy and contact angle metrology. The bioreactivity of the substrates was assessed by evaluating MC3T3-E1 osteoblastic cell adhesion, as well as by in vitro formation of mineralized matrix. Surface analysis of sol–gel-derived oxide on Ti6Al4 V substrates showed a predominantly titanium dioxide (TiO2) composition with abundant hydroxyl groups. The surface was highly wettable, rougher and more porous compared to that of the passivated substrate. Significantly more cells adhered to the sol–gel-coated surface, as compared with passivated surfaces, at 1 and 24 h following cell seeding, and a markedly greater number of mineralized nodules were observed on sol–gel coatings. Collectively our results show that the surface properties of titanium alloy can be modified by SSP to enhance the bioreactivity of this biomaterial.

Keywords
Sol–gel technique; Titanium oxide; Surface topography; Wettability; Osteoblast
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Osteoblast adhesion and matrix mineralization on sol–gel-derived titanium oxide
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 27, Issue 10, April 2006, Pages 2201–2212
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