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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
28/11/2022 |
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Data da última atualização: |
23/01/2024 |
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Autoria: |
LAVAGNINI, I. R.; CAMPOS, J. V.; OSIRO, D.; FERREIRA, J. A.; COLNAGO, L. A.; PALLONE, E. M. J. A. |
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Afiliação: |
LUIZ ALBERTO COLNAGO, CNPDIA. |
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Título: |
Influence of alumina substrates open porosity on calcium phosphates formation produced by the biomimetic method. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Progress in Biomaterials. v. 11, 2022. |
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Páginas: |
263-271 |
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DOI: |
10.1007/s40204-022-00193-8 |
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Idioma: |
Inglês |
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Conteúdo: |
We evaluated the influence of the open porosity of alumina (Al2O3) substrates on the phase formation of calcium phosphates deposited onto it surface. The Al2O3 substrates were prepared with different porosities by the foam-gelcasting method associated with different amounts of polyethylene beads. The substrates were coated biomimetically for 14 and 21 days of incubation in a simulated body fluid (SBF). Scanning electron microscopy characterisation and X-ray computed microtomography showed that the increase in the number of beads provided an increase in the open porosity. The X-ray diffraction and infrared spectroscopy showed that the biomimetic method was able to form different phases of calcium phosphates. It was observed that the increase in the porosity favoured the formation of β-tricalcium phosphate for both incubation periods. The incubation period and the porosity of the substrates can influence the phases and the amount of calcium phosphates formed. Thus, it is possible to target the best application for the biomaterial produced. |
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Palavras-Chave: |
Biomimetic coating; Porous ceramic. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01753naa a2200229 a 4500
001 2148852
005 2024-01-23
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1007/s40204-022-00193-8$2DOI
100 1 $aLAVAGNINI, I. R.
245 $aInfluence of alumina substrates open porosity on calcium phosphates formation produced by the biomimetic method.$h[electronic resource]
260 $c2022
300 $a263-271
520 $aWe evaluated the influence of the open porosity of alumina (Al2O3) substrates on the phase formation of calcium phosphates deposited onto it surface. The Al2O3 substrates were prepared with different porosities by the foam-gelcasting method associated with different amounts of polyethylene beads. The substrates were coated biomimetically for 14 and 21 days of incubation in a simulated body fluid (SBF). Scanning electron microscopy characterisation and X-ray computed microtomography showed that the increase in the number of beads provided an increase in the open porosity. The X-ray diffraction and infrared spectroscopy showed that the biomimetic method was able to form different phases of calcium phosphates. It was observed that the increase in the porosity favoured the formation of β-tricalcium phosphate for both incubation periods. The incubation period and the porosity of the substrates can influence the phases and the amount of calcium phosphates formed. Thus, it is possible to target the best application for the biomaterial produced.
653 $aBiomimetic coating
653 $aPorous ceramic
700 1 $aCAMPOS, J. V.
700 1 $aOSIRO, D.
700 1 $aFERREIRA, J. A.
700 1 $aCOLNAGO, L. A.
700 1 $aPALLONE, E. M. J. A.
773 $tProgress in Biomaterials.$gv. 11, 2022.
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