In vitro Evaluation of Porous borosilicate, borophosphate and phosphate Bioactive Glasses Scaffolds fabricated using Foaming Agent for Bone Regeneration
dc.contributor.author | Erasmus, E. P. | |
dc.contributor.author | Sule, R. | |
dc.contributor.author | Johnson, O. T. | |
dc.contributor.author | Massera, J. | |
dc.contributor.author | Sigalas, I. | |
dc.date.accessioned | 2024-10-07T07:48:51Z | |
dc.date.available | 2024-10-07T07:48:51Z | |
dc.date.issued | 2018 | |
dc.description.abstract | In this work, glasses within the borosilicate borophosphate and phosphate family were sintered into 3D porous scaffolds using 60 and 70 vol. % NH4(HCO3) as a foaming agent. All scaffolds produced remained amorphous; apart from one third of the glasses which crystallized. All produced scaffolds had porosity >50% and interconnected pores in the range of 250–570 μm; as evidenced by μCT. The in-vitro dissolution of the scaffolds in SBF and changes in compression were assessed as a function of immersion time. The pH of the solution containing the borosilicate scaffolds increased due to the typical noncongruent dissolution of this glass family. Borophosphate and phosphate scaffolds induced a decrease in pH upon dissolution attributed to the congruent dissolution of those materials and the large release of phosphate within the media. As prepared, scaffolds showed compressive strength of 1.29 ± 0.21, 1.56 ± 0.63, 3.63 ± 0.69 MPa for the borosilicate, borophosphate and phosphate samples sintered with 60 vol. % NH4 (HCO3), respectively. Evidence of hydroxyapatite precipitation on the borosilicate glass scaffolds was shown by SEM/EDS, XRD and ICP-OES analysis. The borophosphate scaffolds remained stable upon dissolution. The phosphate scaffolds were fully crystallized, leading to very large release of phosphate in the media. | |
dc.description.submitter | PM2024 | |
dc.faculty | Faculty of Engineering and the Built Environment | |
dc.identifier.citation | Erasmus, E.P., Sule, R., Johnson, O.T. et al. In vitro Evaluation of Porous borosilicate, borophosphate and phosphate Bioactive Glasses Scaffolds fabricated using Foaming Agent for Bone Regeneration. Sci Rep 8, 3699 (2018). https://doi.org/10.1038/s41598-018-22032-2 | |
dc.identifier.issn | 2045-2322 (Online) | |
dc.identifier.other | 10.1038/s41598-018-22032-2 | |
dc.identifier.uri | https://hdl.handle.net/10539/41390 | |
dc.journal.title | Scientific Reports | |
dc.language.iso | en | |
dc.publisher | Nature Research | |
dc.relation.ispartofseries | Vol. 8; a3699 | |
dc.rights | © The Author(s). 2018 Open Access, This article is distributed under the terms of the Creative Commons Attribution 4.0 International License. | |
dc.school | School of Chemical and Metallurgical Engineering | |
dc.subject | Bioinspired materials | |
dc.subject | Orthopaedics | |
dc.subject.other | SDG-17: Partnerships for the goals | |
dc.title | In vitro Evaluation of Porous borosilicate, borophosphate and phosphate Bioactive Glasses Scaffolds fabricated using Foaming Agent for Bone Regeneration | |
dc.type | Article |