Direct ink writing of highly bioactive glasses
File(s)
Accepted version
Author(s)
nommeots-nomm, A
lee, PD
Jones, JR
Type
Journal Article
Abstract
Direct ink writing (DIW) or Robocasting, is an additive manufacturing technique that offers the opportunity to create patient specific bioactive glass scaffolds and high strength scaffolds for bone repair. The original 45S5 Bioglass® composition crystallises during sintering and until now, robocast glass scaffolds contained at least 51.9 mol% SiO2 or B2O3 to maintain their amorphous structure. Here, ICIE16 and PSrBG compositions, containing <50 mol% SiO2, giving silicate network connectivity close to that of 45S5, were robocast and compared to 13–93 composition. Results showed Pluronic F-127 can be used as a universal binder regardless of glass reactivity and that particle size distribution affected the ink “printability”. Scaffolds with interconnects of 150 μm (41–43% porosity) had compressive strengths of 32–48 MPa, depending on the glass composition. Robocast scaffolds from these highly reactive bioactive glasses promise greatly improved bone regeneration rates compared with existing bioactive glass scaffolds.
Date Issued
2017-08-05
Date Acceptance
2017-08-02
Citation
Journal of the European Ceramic Society, 2017, 28 (3), pp.937-944
ISSN
0955-2219
Publisher
Elsevier
Start Page
937
End Page
944
Journal / Book Title
Journal of the European Ceramic Society
Volume
28
Issue
3
Copyright Statement
© 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Subjects
0912 Materials Engineering
Materials
Publication Status
Published