Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/90332
Título: | On the production of novel zirconia-reinforced bioactive glass porous structures for bone repair |
Autor(es): | Gouveia, Paula F. Mesquita-Guimarães, Joana Galarraga-Vinueza, Maria E. Souza, Julio C. M. Moreira, Anderson C. Silva, Filipe Samuel Fredel, Márcio C. Henriques, Bruno |
Data: | 9-Abr-2021 |
Editora: | Springer |
Revista: | Journal of Materials Science |
Resumo(s): | The objective of this study was to develop a replica method for producing zirconia-reinforced bioactive glass (ZRBG) porous structures for bone repair. Four different types of porous structures were produced: zirconia (G1), 58S BG-coated zirconia (G2), zirconia-reinforced BG (G3) and 58S BG-coated zirconia-reinforced BG (G4). A complete characterization of the specimens was performed via SEM-EDS, Archimedes method, 3D X-ray micro-tomography, micro-indentation, compressive strength tests and SBF immersion tests. G3 and G4 specimens presented a BG matrix (similar to 33% glassy phase) with dispersed zirconia particles. The porosity of the specimens ranged from 86% up to 93%. BG58S-zirconia groups G3 and G4) exhibited lower YM (38.76 +/- 11.20 GPa and 43.49 +/- 2.16 GPa) than that of G1 monolithic zirconia specimens (94.39 +/- 12.62 GPa), which were more compatible to that of the bone. No significant difference in compressive strength between BG58S-zirconia (G3: 0.41 +/- 0.20 MPa; G4: 0.45 +/- 0.11 MPa) and zirconia (G1: 0.32 +/- 0.11 MPa) was detected observed (p > 0.05). In vitro SBF tests showed a potential bioactivity for ZRBG porous structures. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/90332 |
DOI: | 10.1007/s10853-021-06005-x |
ISSN: | 0022-2461 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito autor |
Aparece nas coleções: | CMEMS - Artigos em revistas internacionais/Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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On the production of novel zirconia-reinforced bioactive glass porous structures for bone repair.pdf Acesso restrito! | 1,9 MB | Adobe PDF | Ver/Abrir |