Non-crystalline composite tissue engineering scaffolds using boron-containing bioactive glass and poly(D,L-lactic acid) coatings
Boccaccini AR (2009)
Publication Type: Journal article
Publication year: 2009
Journal
Book Volume: 4
Article Number: 055002
Journal Issue: 5
DOI: 10.1088/1748-6041/4/5/055002
Abstract
The aim of this study was the fabrication of three-dimensional, highly porous, bioactive scaffolds using a recently developed bioactive glass powder, denominated '0106', with nominal composition (in wt%): 50 SiO2, 22.6 CaO, 5.9 Na2O, 4 P2O5, 12 K2O, 5.3 MgO and 0.2 B2O3. The optimum sintering conditions for the fabrication of scaffolds by the foam-replica method were identified (sintering temperature: 670 °C and dwell time: 5 h). Composite samples were also fabricated by applying a biopolymer coating of poly(D,L-lactic acid) (PDLLA) using a dip coating process. The average compressive strength values were 0.4 MPa for uncoated and 0.6 MPa for coated scaffolds. In vitro bioactivity studies in simulated body fluid (SBF) showed that a carbonate hydroxyapatite (HCAp) layer was deposited on uncoated and coated scaffolds after only 4 days of immersion in SBF, demonstrating the high in vitro bioactivity of the scaffolds. It was also confirmed that the scaffold structure remained amorphous (no crystallization) after the specific heat treatment used, with scaffolds exhibiting mechanical properties and bioactivity suitable for use in bone tissue engineering applications. © 2009 IOP Publishing Ltd.
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How to cite
APA:
Boccaccini, A.R. (2009). Non-crystalline composite tissue engineering scaffolds using boron-containing bioactive glass and poly(D,L-lactic acid) coatings. Biomedical Materials, 4(5). https://doi.org/10.1088/1748-6041/4/5/055002
MLA:
Boccaccini, Aldo R.. "Non-crystalline composite tissue engineering scaffolds using boron-containing bioactive glass and poly(D,L-lactic acid) coatings." Biomedical Materials 4.5 (2009).
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