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Bioactive nano-titania ceramics with biomechanical compatibility prepared by doping with piezoelectric BaTiO3

Paper ID Volume ID Publish Year Pages File Format Full-Text
1276 80 2009 7 PDF Available
Title
Bioactive nano-titania ceramics with biomechanical compatibility prepared by doping with piezoelectric BaTiO3
Abstract

Piezoelectric BaTiO3 was employed as a crystal growth inhibitor additive for the preparation of bioactive nano-titania ceramics in this study. It is found that the additive could significantly inhibit nano-titania ceramic crystal growth during the pressureless sintering process. This inhibitory ability has great effects on the mechanical properties and bioactivities of the nano-titania ceramics, making it possible to obtain bioactive nano-titania ceramics with mechanical properties analogous to human bone. In this study, the crystal grain sizes of the nano-titania ceramics ranged from 18 to 68 nm and the particle sizes ranged from 187 to 580 nm by changing the additive content from 1% to 20%. The elastic modulus of the nano-titania ceramics ranged from 6.2 to 10.6 GPa, which is analogous to that of human bone, by adjusting the additive content. The piezoelectric properties of the additive also showed the enhancing effects on the bioactivity of the nano-titania ceramics, which made the osteoblasts proliferate faster on the nano-titania ceramics in cell culture experiments. It might be a potential way to prepare bioactive nano-titania ceramics with biomechanical compatibility by using BaTiO3 as a crystal growth inhibitor.

Keywords
Nano-titania ceramics; BaTiO3; Bioactivity; Grain growth inhibitor; Biomechanical compatibility
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Bioactive nano-titania ceramics with biomechanical compatibility prepared by doping with piezoelectric BaTiO3
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 5, Issue 6, July 2009, Pages 2189–2195
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