Coating glass-ceramics bioactive based on Nb2O5-SiOCaO- Na2O system

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dc.contributor.authorMELLO-CASTANHO, SONIA
dc.contributor.authorSANTOS, FELIPE
dc.contributor.authorBARTOLOME, JOSE
dc.contributor.authorSILVA, ANTONIO
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL CONGRESS ON CERAMICS, 6thpt_BR
dc.date.accessioned2017-03-24T18:37:07Z
dc.date.available2017-03-24T18:37:07Z
dc.date.eventoAugust 21-25, 2016pt_BR
dc.description.abstractThe request for biomaterials which interact and provide proper feedback to bodily environment is increasing and so, the need for alternative materials development, from the process or biological feedback points of view, is a necessity. In this context, glass and glassceramic are interesting alternatives due to their chemical and structural characteristics possibilities. The surface coating of a specific implant with bioglass associated to biocide activity can lead to a significant impact on patient life quality, reducing risks associated to prostheses replacement due to infections, which is currently one of the most concerning and important factors in implantology. In this work, glassceramic materials based on SiO-CaO-Na2O system containing different percentages of Nb2O5 were developed. Glasses were melted at 1500°C and thermally treated at 750°C-2h. The materials were characterized by X-Ray Diffraction (XRD), to analyses indicated partial crystallization of glassy matrix. The Fourier Transform Infrared (FTIR) Spectroscopy and Dilatometry also were used to structural and thermal behavior analyses respectively. Citotoxicity tests were performed using neutral red uptake methodology and indicated normal cell growth, which enables the use as biomaterial. Biocide activity was evaluated through glass-ceramic incubation in bacterial suspension (Escherichia coli) at 37°C under shaking. A composition with higher contents of SiO2 and Nb2O5 presented higher biocide activity and coefficient of thermal expansion (CTE) evaluated indicate thermal connection with stainless steel 316L and titanium alloys.pt_BR
dc.identifier.citationMELLO-CASTANHO, SONIA; SANTOS, FELIPE; BARTOLOME, JOSE; SILVA, ANTONIO. Coating glass-ceramics bioactive based on Nb2O5-SiOCaO- Na2O system. In: INTERNATIONAL CONGRESS ON CERAMICS, 6th, August 21-25, 2016, Dresden, Germany. <b>Abstract...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/27326.
dc.identifier.orcidhttps://orcid.org/0000-0002-0155-9100
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/27326
dc.local.eventoDresden, Germanypt_BR
dc.rightsopenAccesspt_BR
dc.titleCoating glass-ceramics bioactive based on Nb2O5-SiOCaO- Na2O systempt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorFELIPE ANTUNES SANTOS
ipen.autorANTONIO CARLOS DA SILVA
ipen.autorSONIA REGINA HOMEM DE MELLO CASTANHO
ipen.codigoautor8613
ipen.codigoautor2949
ipen.codigoautor1552
ipen.contributor.ipenauthorFELIPE ANTUNES SANTOS
ipen.contributor.ipenauthorANTONIO CARLOS DA SILVA
ipen.contributor.ipenauthorSONIA REGINA HOMEM DE MELLO CASTANHO
ipen.date.recebimento17-03pt_BR
ipen.event.datapadronizada2016pt_BR
ipen.identifier.ipendoc23563pt_BR
ipen.notas.internasAbstractpt_BR
ipen.type.genreResumo
relation.isAuthorOfPublicationade1c63e-4e65-4c0c-87b8-3a9fdd77b34e
relation.isAuthorOfPublication839a3a2d-55ca-4376-993c-a8279c5cf017
relation.isAuthorOfPublication421edd64-5958-445c-9f93-1e13aabaa72a
relation.isAuthorOfPublication.latestForDiscovery421edd64-5958-445c-9f93-1e13aabaa72a
sigepi.autor.atividadeMELLO-CASTANHO, SONIA:1552:720:Spt_BR
sigepi.autor.atividadeSANTOS, FELIPE:8613:720:Npt_BR
sigepi.autor.atividadeSILVA, ANTONIO:2949:720:Npt_BR
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