A novel hybrid material with calcium and strontium release capability

Detalhes bibliográficos
Autor(a) principal: Castro, António
Data de Publicação: 2012
Outros Autores: Almeida, José Carlos, Salvado, Isabel Miranda, Margaça, Fernanda, Fernandes, Maria Helena
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/9380
Resumo: The preparation of PDMS–TEOS–CaO hybrid materials by sol–gel techniques has been widely described in previous works. Calcium nitrate is the most common source of calcium used in these preparations. However, to remove possible toxic nitrate by-products a thermal treatment is necessary at temperatures above 500 1C, which leads to the degradation of the polymeric components of the hybrids. Strontium has already shown some promising results in the therapeutic area, being used in cases of osteoporosis and low bone density. In this study a new potential bioactive hybrid material was prepared, by sol–gel techniques, using calcium acetate as a novel calcium source. Also, for the first time, incorporation of strontium in a PDMS–TEOS hybrid system was evaluated. Samples were characterized before and after immersion in Kokubo’s Simulated Body Fluid (SBF) by SEM, EDS, ICP and FT-IR spectroscopy.
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spelling A novel hybrid material with calcium and strontium release capabilitySol-gel preparationBiomaterialsElectron MicroscopyMicrostructureFTIRThe preparation of PDMS–TEOS–CaO hybrid materials by sol–gel techniques has been widely described in previous works. Calcium nitrate is the most common source of calcium used in these preparations. However, to remove possible toxic nitrate by-products a thermal treatment is necessary at temperatures above 500 1C, which leads to the degradation of the polymeric components of the hybrids. Strontium has already shown some promising results in the therapeutic area, being used in cases of osteoporosis and low bone density. In this study a new potential bioactive hybrid material was prepared, by sol–gel techniques, using calcium acetate as a novel calcium source. Also, for the first time, incorporation of strontium in a PDMS–TEOS hybrid system was evaluated. Samples were characterized before and after immersion in Kokubo’s Simulated Body Fluid (SBF) by SEM, EDS, ICP and FT-IR spectroscopy.Elsevier2012-12-05T15:17:25Z2012-12-01T00:00:00Z2012-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/9380eng0167-577X10.1016/j.matlet.2012.08.022Castro, AntónioAlmeida, José CarlosSalvado, Isabel MirandaMargaça, FernandaFernandes, Maria Helenainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:15:55Zoai:ria.ua.pt:10773/9380Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:46:12.753211Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv A novel hybrid material with calcium and strontium release capability
title A novel hybrid material with calcium and strontium release capability
spellingShingle A novel hybrid material with calcium and strontium release capability
Castro, António
Sol-gel preparation
Biomaterials
Electron Microscopy
Microstructure
FTIR
title_short A novel hybrid material with calcium and strontium release capability
title_full A novel hybrid material with calcium and strontium release capability
title_fullStr A novel hybrid material with calcium and strontium release capability
title_full_unstemmed A novel hybrid material with calcium and strontium release capability
title_sort A novel hybrid material with calcium and strontium release capability
author Castro, António
author_facet Castro, António
Almeida, José Carlos
Salvado, Isabel Miranda
Margaça, Fernanda
Fernandes, Maria Helena
author_role author
author2 Almeida, José Carlos
Salvado, Isabel Miranda
Margaça, Fernanda
Fernandes, Maria Helena
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Castro, António
Almeida, José Carlos
Salvado, Isabel Miranda
Margaça, Fernanda
Fernandes, Maria Helena
dc.subject.por.fl_str_mv Sol-gel preparation
Biomaterials
Electron Microscopy
Microstructure
FTIR
topic Sol-gel preparation
Biomaterials
Electron Microscopy
Microstructure
FTIR
description The preparation of PDMS–TEOS–CaO hybrid materials by sol–gel techniques has been widely described in previous works. Calcium nitrate is the most common source of calcium used in these preparations. However, to remove possible toxic nitrate by-products a thermal treatment is necessary at temperatures above 500 1C, which leads to the degradation of the polymeric components of the hybrids. Strontium has already shown some promising results in the therapeutic area, being used in cases of osteoporosis and low bone density. In this study a new potential bioactive hybrid material was prepared, by sol–gel techniques, using calcium acetate as a novel calcium source. Also, for the first time, incorporation of strontium in a PDMS–TEOS hybrid system was evaluated. Samples were characterized before and after immersion in Kokubo’s Simulated Body Fluid (SBF) by SEM, EDS, ICP and FT-IR spectroscopy.
publishDate 2012
dc.date.none.fl_str_mv 2012-12-05T15:17:25Z
2012-12-01T00:00:00Z
2012-12-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10773/9380
url http://hdl.handle.net/10773/9380
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0167-577X
10.1016/j.matlet.2012.08.022
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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