Obtenção de nanopartículas coloidais de trifluoreto de itérbio

Detalhes bibliográficos
Autor(a) principal: Silva, Patricia Batista Teixeira da
Data de Publicação: 2011
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UFSCAR
Texto Completo: https://repositorio.ufscar.br/handle/ufscar/6637
Resumo: Radiopaque dental composites are materials that have attracted great scientific and technological interest due to their different optical and mechanical properties when compared to polymer-based dental materials. In this work, dental resin nanocomposites were prepared with the assynthesized YbF3 nanoparticles by mixing the components in the colloidal state. YbF3 nanoparticles were synthesized by hydrothermal processing. In this method, it was added an aqueous solution containing YbCl3 and Na3C6H5O7.2H2O. Additionally, NH4F and NaBF4 were used as fluoride source. Resulting in nanoparticles with average size around 10 nm, which consisted of orthorhombic phase. In addition, nanocomposites were prepared with the dental resin YbF3 obtained. Which showed higher radiopacity than the tooth tissue with 20% in weight (w/w) using the as-synthesized YbF3 nanoparticles.
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spelling Silva, Patricia Batista Teixeira daCamargo, Emerson Rodrigues dehttp://lattes.cnpq.br/7720754304065239http://lattes.cnpq.br/72610415137679032016-06-02T20:37:46Z2012-08-292016-06-02T20:37:46Z2011-02-16SILVA, Patricia Batista Teixeira da. Obtenção de nanopartículas coloidais de trifluoreto de itérbio. 2011. 58 f. Dissertação (Mestrado em Ciências Exatas e da Terra) - Universidade Federal de São Carlos, São Carlos, 2011.https://repositorio.ufscar.br/handle/ufscar/6637Radiopaque dental composites are materials that have attracted great scientific and technological interest due to their different optical and mechanical properties when compared to polymer-based dental materials. In this work, dental resin nanocomposites were prepared with the assynthesized YbF3 nanoparticles by mixing the components in the colloidal state. YbF3 nanoparticles were synthesized by hydrothermal processing. In this method, it was added an aqueous solution containing YbCl3 and Na3C6H5O7.2H2O. Additionally, NH4F and NaBF4 were used as fluoride source. Resulting in nanoparticles with average size around 10 nm, which consisted of orthorhombic phase. In addition, nanocomposites were prepared with the dental resin YbF3 obtained. Which showed higher radiopacity than the tooth tissue with 20% in weight (w/w) using the as-synthesized YbF3 nanoparticles.Compósitos odontológicos radiopacos são materiais que tem despertado grande interesse científico e tecnológico por possuírem propriedades ópticas e mecânicas diferenciadas quando comparados aos materiais odontológicos com polímeros puros. Neste trabalho preparou-se nanocompósitos com características de resina odontológica com as nanopartículas sintéticas de YbF3, por meio da mistura dos componentes em estado coloidal. As nanopartículas de YbF3 foram sintetizadas por processamento hidrotérmico. Neste método, adicionou-se uma solução aquosa contendo YbCl3 e Na3C6H5O7.2H2O. E como fonte de flúor foram utilizados NH4F e NaBF4. Resultando em nanopartículas com tamanho médio 10 nm, na fase ortorrômbica. Também foram preparados nanocompósitos de resina odontológica com YbF3 com radiopacidade superior ao tecido do dente com 20% ( massa/massa) de nanopartículas de YbF3 sintética.application/pdfporUniversidade Federal de São CarlosPrograma de Pós-Graduação de Mestrado Profissional em Química - PPGQUFSCarBRNanocompósitosTrifluoreto de itérbioRadiopacidadeCIENCIAS EXATAS E DA TERRA::QUIMICAObtenção de nanopartículas coloidais de trifluoreto de itérbioinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINAL4411.pdfapplication/pdf1557257https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/6637/1/4411.pdfd91ac0a39a39d6541536348356546a12MD51TEXT4411.pdf.txt4411.pdf.txtExtracted texttext/plain0https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/6637/4/4411.pdf.txtd41d8cd98f00b204e9800998ecf8427eMD54THUMBNAIL4411.pdf.jpg4411.pdf.jpgIM Thumbnailimage/jpeg9195https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/6637/5/4411.pdf.jpgb1c1ab5c4ebc5a60787b7d0734c11c9aMD55ufscar/66372020-03-23 19:55:00.185oai:repositorio.ufscar.br:ufscar/6637Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222020-03-23T19:55Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false
dc.title.por.fl_str_mv Obtenção de nanopartículas coloidais de trifluoreto de itérbio
title Obtenção de nanopartículas coloidais de trifluoreto de itérbio
spellingShingle Obtenção de nanopartículas coloidais de trifluoreto de itérbio
Silva, Patricia Batista Teixeira da
Nanocompósitos
Trifluoreto de itérbio
Radiopacidade
CIENCIAS EXATAS E DA TERRA::QUIMICA
title_short Obtenção de nanopartículas coloidais de trifluoreto de itérbio
title_full Obtenção de nanopartículas coloidais de trifluoreto de itérbio
title_fullStr Obtenção de nanopartículas coloidais de trifluoreto de itérbio
title_full_unstemmed Obtenção de nanopartículas coloidais de trifluoreto de itérbio
title_sort Obtenção de nanopartículas coloidais de trifluoreto de itérbio
author Silva, Patricia Batista Teixeira da
author_facet Silva, Patricia Batista Teixeira da
author_role author
dc.contributor.authorlattes.por.fl_str_mv http://lattes.cnpq.br/7261041513767903
dc.contributor.author.fl_str_mv Silva, Patricia Batista Teixeira da
dc.contributor.advisor1.fl_str_mv Camargo, Emerson Rodrigues de
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/7720754304065239
contributor_str_mv Camargo, Emerson Rodrigues de
dc.subject.por.fl_str_mv Nanocompósitos
Trifluoreto de itérbio
Radiopacidade
topic Nanocompósitos
Trifluoreto de itérbio
Radiopacidade
CIENCIAS EXATAS E DA TERRA::QUIMICA
dc.subject.cnpq.fl_str_mv CIENCIAS EXATAS E DA TERRA::QUIMICA
description Radiopaque dental composites are materials that have attracted great scientific and technological interest due to their different optical and mechanical properties when compared to polymer-based dental materials. In this work, dental resin nanocomposites were prepared with the assynthesized YbF3 nanoparticles by mixing the components in the colloidal state. YbF3 nanoparticles were synthesized by hydrothermal processing. In this method, it was added an aqueous solution containing YbCl3 and Na3C6H5O7.2H2O. Additionally, NH4F and NaBF4 were used as fluoride source. Resulting in nanoparticles with average size around 10 nm, which consisted of orthorhombic phase. In addition, nanocomposites were prepared with the dental resin YbF3 obtained. Which showed higher radiopacity than the tooth tissue with 20% in weight (w/w) using the as-synthesized YbF3 nanoparticles.
publishDate 2011
dc.date.issued.fl_str_mv 2011-02-16
dc.date.available.fl_str_mv 2012-08-29
2016-06-02T20:37:46Z
dc.date.accessioned.fl_str_mv 2016-06-02T20:37:46Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
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dc.identifier.citation.fl_str_mv SILVA, Patricia Batista Teixeira da. Obtenção de nanopartículas coloidais de trifluoreto de itérbio. 2011. 58 f. Dissertação (Mestrado em Ciências Exatas e da Terra) - Universidade Federal de São Carlos, São Carlos, 2011.
dc.identifier.uri.fl_str_mv https://repositorio.ufscar.br/handle/ufscar/6637
identifier_str_mv SILVA, Patricia Batista Teixeira da. Obtenção de nanopartículas coloidais de trifluoreto de itérbio. 2011. 58 f. Dissertação (Mestrado em Ciências Exatas e da Terra) - Universidade Federal de São Carlos, São Carlos, 2011.
url https://repositorio.ufscar.br/handle/ufscar/6637
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dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de São Carlos
dc.publisher.program.fl_str_mv Programa de Pós-Graduação de Mestrado Profissional em Química - PPGQ
dc.publisher.initials.fl_str_mv UFSCar
dc.publisher.country.fl_str_mv BR
publisher.none.fl_str_mv Universidade Federal de São Carlos
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