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Mesoporous bioactive glasses: Mechanical reinforcement by means of a biomimetic process

Paper ID Volume ID Publish Year Pages File Format Full-Text
1161 77 2011 8 PDF Available
Title
Mesoporous bioactive glasses: Mechanical reinforcement by means of a biomimetic process
Abstract

Mesoporous bioactive glasses (MBGs) constitute a new family of bioceramics with the fastest in vitro bioactivity studied so far. In this work, pieces with the composition 85SiO2–10CaO–5P2O5 (mol.%) were prepared as MBGs and also by the conventional sol–gel method. After in vitro tests in simulated body fluid, the MBG pieces exhibited compression resistance twice as great than before, whereas conventional sol–gel glasses showed similar values. Scanning and transmission electron microscopy demonstrate the development of an apatite-like phase not only on the external surface, but also on the grains located within the MBGs pieces. In contrast, conventional sol–gel glasses only developed an apatite-like phase on the external surface. This work presents for the first time a new property of MBGs: the mechanical reinforcement of a bioactive glass through a biomimetic process. This ability is explained in terms of the outstanding bioactive behavior and the three-dimensional mesoporous structure that is exclusive for this bioceramics family.

Keywords
Mesoporous materials; Bioactive glasses; Mechanical properties; Scaffolds; Biomimetism
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 7, Issue 7, July 2011, Pages 2952–2959
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