Novel merwinite/akermanite ceramics: in vitro bioactivity

Detalhes bibliográficos
Autor(a) principal: Mihailova, I K
Data de Publicação: 2015
Outros Autores: Radev, L, Aleksandrova, V A, Colova, I V, Salvado, I M M, Fernandes, M H V
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/18163
Resumo: The ceramics in the system CaO – MgO – SiO2 has recently received a great deal of attention because they exhibit good in vitro bioactivity and have potential use as bone implants. Biphasic calcium-magnesium-silicate ceramics was prepared by a sol-gel method. The dried gel with chemical composition 3CaO.MgO.2SiO2 was thermally treated at 1300°C for 2 h. The structural behavior of the synthesized ceramics was examined by means of X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). Merwinite, as the main crystalline phase, and akermanite, as the minor phase, were identified. The in vitro bioactivity of the synthesized ceramic samples was recorded in Simulated Body Fluid (SBF) for different times of soaking. The apatite formation on the surface of the immersed samples was detected by FTIR, SEM and Energy Dispersive Spectroscopy (EDS) techniques. The ion concentrations in the SBF solutions after the in vitro test were evaluated by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). On the basis of the results obtained, the ability of the biphasic ceramics to deposit apatite layer was found. The peculiarities of the formation of apatite layer depending on the phase composition were analyzed and discussed.
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spelling Novel merwinite/akermanite ceramics: in vitro bioactivityIn vitro bioactivityAkermaniteMerwiniteCeramicsCaO – MgO – SiO2The ceramics in the system CaO – MgO – SiO2 has recently received a great deal of attention because they exhibit good in vitro bioactivity and have potential use as bone implants. Biphasic calcium-magnesium-silicate ceramics was prepared by a sol-gel method. The dried gel with chemical composition 3CaO.MgO.2SiO2 was thermally treated at 1300°C for 2 h. The structural behavior of the synthesized ceramics was examined by means of X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). Merwinite, as the main crystalline phase, and akermanite, as the minor phase, were identified. The in vitro bioactivity of the synthesized ceramic samples was recorded in Simulated Body Fluid (SBF) for different times of soaking. The apatite formation on the surface of the immersed samples was detected by FTIR, SEM and Energy Dispersive Spectroscopy (EDS) techniques. The ion concentrations in the SBF solutions after the in vitro test were evaluated by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). On the basis of the results obtained, the ability of the biphasic ceramics to deposit apatite layer was found. The peculiarities of the formation of apatite layer depending on the phase composition were analyzed and discussed.Bulgarian Academy of Sciences2017-07-28T14:51:54Z2015-01-01T00:00:00Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/18163eng0324-1130Mihailova, I KRadev, LAleksandrova, V AColova, I VSalvado, I M MFernandes, M H Vinfo: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:RCAAP2024-02-22T11:33:37Zoai:ria.ua.pt:10773/18163Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:52:40.113722Repositório 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 Novel merwinite/akermanite ceramics: in vitro bioactivity
title Novel merwinite/akermanite ceramics: in vitro bioactivity
spellingShingle Novel merwinite/akermanite ceramics: in vitro bioactivity
Mihailova, I K
In vitro bioactivity
Akermanite
Merwinite
Ceramics
CaO – MgO – SiO2
title_short Novel merwinite/akermanite ceramics: in vitro bioactivity
title_full Novel merwinite/akermanite ceramics: in vitro bioactivity
title_fullStr Novel merwinite/akermanite ceramics: in vitro bioactivity
title_full_unstemmed Novel merwinite/akermanite ceramics: in vitro bioactivity
title_sort Novel merwinite/akermanite ceramics: in vitro bioactivity
author Mihailova, I K
author_facet Mihailova, I K
Radev, L
Aleksandrova, V A
Colova, I V
Salvado, I M M
Fernandes, M H V
author_role author
author2 Radev, L
Aleksandrova, V A
Colova, I V
Salvado, I M M
Fernandes, M H V
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Mihailova, I K
Radev, L
Aleksandrova, V A
Colova, I V
Salvado, I M M
Fernandes, M H V
dc.subject.por.fl_str_mv In vitro bioactivity
Akermanite
Merwinite
Ceramics
CaO – MgO – SiO2
topic In vitro bioactivity
Akermanite
Merwinite
Ceramics
CaO – MgO – SiO2
description The ceramics in the system CaO – MgO – SiO2 has recently received a great deal of attention because they exhibit good in vitro bioactivity and have potential use as bone implants. Biphasic calcium-magnesium-silicate ceramics was prepared by a sol-gel method. The dried gel with chemical composition 3CaO.MgO.2SiO2 was thermally treated at 1300°C for 2 h. The structural behavior of the synthesized ceramics was examined by means of X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). Merwinite, as the main crystalline phase, and akermanite, as the minor phase, were identified. The in vitro bioactivity of the synthesized ceramic samples was recorded in Simulated Body Fluid (SBF) for different times of soaking. The apatite formation on the surface of the immersed samples was detected by FTIR, SEM and Energy Dispersive Spectroscopy (EDS) techniques. The ion concentrations in the SBF solutions after the in vitro test were evaluated by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). On the basis of the results obtained, the ability of the biphasic ceramics to deposit apatite layer was found. The peculiarities of the formation of apatite layer depending on the phase composition were analyzed and discussed.
publishDate 2015
dc.date.none.fl_str_mv 2015-01-01T00:00:00Z
2015
2017-07-28T14:51:54Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10773/18163
url http://hdl.handle.net/10773/18163
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dc.publisher.none.fl_str_mv Bulgarian Academy of Sciences
publisher.none.fl_str_mv Bulgarian Academy of Sciences
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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