In vitro bioactivity of Polyurethane/85S Bioglass composite scaffolds

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creativework.keywordsBioglass, In vitro bioactivity, Polyurethane, Scaffolds
dc.contributor.authorRadev L.
dc.contributor.authorZheleva D.
dc.contributor.authorMichailova I.
dc.date.accessioned2024-07-10T14:27:03Z
dc.date.accessioned2024-07-10T14:48:00Z
dc.date.available2024-07-10T14:27:03Z
dc.date.available2024-07-10T14:48:00Z
dc.date.issued2013-09-01
dc.description.abstractIn the present work Polyurethane (PU)/Bioglass (BG) composite materials were synthesized with different content of BG (10 and 20 mol.%) as filler. The 85S Bioglass was synthesized via polystep sol-gel method. The chemical composition of BG is 85SiO2-10CaO-5P2O5 (wt.%). The synthesis of PU was carried out by a two-step polyaddition reaction. The 85S BG was added in situ during the polymerization reaction. In vitro bioactivity of the prepared composites was examined in the presence of 1.5 SBF for 7 days in static conditions. The structure of synthesized PU/BG composites before and after in vitro test was determined by XRD, FTIR and SEM. XRD of the samples before in vitro test proved that the phase of γCa 2P2O7 in the PU/20BG is visible. FTIR revealed the presence of urethane bond between OH-(from BG) and NCO groups (from PU). Based on FTIR results after in vitro test in 1.5 SBF solutions, A/B-carbonate containing hydroxyapatite (CO3HA) was formed. XRD proved that HA was formed on the surface of the samples, but Ca2P2O 7 does not undergo any changes in the 1.5 SBF solution. SEM depicted the nano-HA agglomerated in spherical particles after immersion in 1.5 SBF for 7 days. © 2013 Versita Warsaw and Springer-Verlag Wien.
dc.identifier.doi10.2478/s11532-013-0273-9
dc.identifier.issn1895-1066
dc.identifier.issn1644-3624
dc.identifier.scopusSCOPUS_ID:84879824430en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/275
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84879824430&origin=inward
dc.titleIn vitro bioactivity of Polyurethane/85S Bioglass composite scaffolds
dc.typeArticle
oaire.citation.issue9
oaire.citation.volume11
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