Enhancing the mechanical properties and providing bioactive potential for graphene oxide/montmorillonite hybrid dental resin composites

Abstract This in vitro study synthetized hybrid composite nanoparticles of graphene oxide (GO) and montmorillonite MMt (GO-MMt) by ultrasound treatments. Samples were characterized by X-ray diffraction, FT-Raman, FTIR, TEM and SEM. The effect of their incorporation (0.3% and 0.5%) on the mechanical...

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Main Authors: Marilia Mattar de Amôedo Campos Velo, Francisco Gilmário Nunes Filho, Tatiana Rita de Lima Nascimento, Alyssa Teixeira Obeid, Lúcio Cançado Castellano, Reginaldo Mendonça Costa, Nair Cristina Margarido Brondino, Maria Gardennia Fonseca, Nikolaos Silikas, Rafael Francisco Lia Mondelli
Format: Article
Language:English
Published: Nature Portfolio 2022-06-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-13766-1
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author Marilia Mattar de Amôedo Campos Velo
Francisco Gilmário Nunes Filho
Tatiana Rita de Lima Nascimento
Alyssa Teixeira Obeid
Lúcio Cançado Castellano
Reginaldo Mendonça Costa
Nair Cristina Margarido Brondino
Maria Gardennia Fonseca
Nikolaos Silikas
Rafael Francisco Lia Mondelli
author_facet Marilia Mattar de Amôedo Campos Velo
Francisco Gilmário Nunes Filho
Tatiana Rita de Lima Nascimento
Alyssa Teixeira Obeid
Lúcio Cançado Castellano
Reginaldo Mendonça Costa
Nair Cristina Margarido Brondino
Maria Gardennia Fonseca
Nikolaos Silikas
Rafael Francisco Lia Mondelli
author_sort Marilia Mattar de Amôedo Campos Velo
collection DOAJ
description Abstract This in vitro study synthetized hybrid composite nanoparticles of graphene oxide (GO) and montmorillonite MMt (GO-MMt) by ultrasound treatments. Samples were characterized by X-ray diffraction, FT-Raman, FTIR, TEM and SEM. The effect of their incorporation (0.3% and 0.5%) on the mechanical properties in a resin-based composite (RBC) and their bioactivity potential were evaluated. The specimens were characterized by evaluating their 3-point flexural strength (n = 6), modulus of elasticity (n = 6), degree of conversion (n = 6), microhardness (n = 6), contact angle (n = 3) and SEM analysis (n = 3). In vitro test in SBF were conducted in the RBCs modified by the hybrid. Overall, the synthetized hybrid composite demonstrated that GO was intercalated with MMt, showing a more stable compound. ANOVA and Tukey test showed that RBC + 0.3% GO-MMt demonstrated superior values of flexural strength, followed by RBC + 0.5% GO-MMt (p < 0.05) and both materials showed higher values of microhardness. All groups presented a contact angle below 90°, characterizing hydrophilic materials. RBCs modified by the hybrid showed Ca and P deposition after 14 days in SBF. In conclusion, RBCs composed by the hybrid showed promising results in terms of mechanical properties and bioactive potential, extending the application of GO in dental materials.
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spelling doaj.art-c3e6bf74c2544c8e9f82485c8a438cd92022-12-22T00:24:45ZengNature PortfolioScientific Reports2045-23222022-06-0112111410.1038/s41598-022-13766-1Enhancing the mechanical properties and providing bioactive potential for graphene oxide/montmorillonite hybrid dental resin compositesMarilia Mattar de Amôedo Campos Velo0Francisco Gilmário Nunes Filho1Tatiana Rita de Lima Nascimento2Alyssa Teixeira Obeid3Lúcio Cançado Castellano4Reginaldo Mendonça Costa5Nair Cristina Margarido Brondino6Maria Gardennia Fonseca7Nikolaos Silikas8Rafael Francisco Lia Mondelli9Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São PauloDepartment of Chemistry, Research and Extension Center for Fuels and Materials Laboratory (NPELACOM), Federal University of ParaibaDepartment of Chemistry, Research and Extension Center for Fuels and Materials Laboratory (NPELACOM), Federal University of ParaibaDepartment of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São PauloHuman Immunology Research and Education Group (GEPIH), UFPB Technical School of Health, Federal University of ParaíbaDepartment of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São PauloDepartment of Mathematics, School of Sciences, São Paulo State University-UNESPDepartment of Chemistry, Research and Extension Center for Fuels and Materials Laboratory (NPELACOM), Federal University of ParaibaDentistry, School of Medical Sciences, The University of ManchesterDepartment of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São PauloAbstract This in vitro study synthetized hybrid composite nanoparticles of graphene oxide (GO) and montmorillonite MMt (GO-MMt) by ultrasound treatments. Samples were characterized by X-ray diffraction, FT-Raman, FTIR, TEM and SEM. The effect of their incorporation (0.3% and 0.5%) on the mechanical properties in a resin-based composite (RBC) and their bioactivity potential were evaluated. The specimens were characterized by evaluating their 3-point flexural strength (n = 6), modulus of elasticity (n = 6), degree of conversion (n = 6), microhardness (n = 6), contact angle (n = 3) and SEM analysis (n = 3). In vitro test in SBF were conducted in the RBCs modified by the hybrid. Overall, the synthetized hybrid composite demonstrated that GO was intercalated with MMt, showing a more stable compound. ANOVA and Tukey test showed that RBC + 0.3% GO-MMt demonstrated superior values of flexural strength, followed by RBC + 0.5% GO-MMt (p < 0.05) and both materials showed higher values of microhardness. All groups presented a contact angle below 90°, characterizing hydrophilic materials. RBCs modified by the hybrid showed Ca and P deposition after 14 days in SBF. In conclusion, RBCs composed by the hybrid showed promising results in terms of mechanical properties and bioactive potential, extending the application of GO in dental materials.https://doi.org/10.1038/s41598-022-13766-1
spellingShingle Marilia Mattar de Amôedo Campos Velo
Francisco Gilmário Nunes Filho
Tatiana Rita de Lima Nascimento
Alyssa Teixeira Obeid
Lúcio Cançado Castellano
Reginaldo Mendonça Costa
Nair Cristina Margarido Brondino
Maria Gardennia Fonseca
Nikolaos Silikas
Rafael Francisco Lia Mondelli
Enhancing the mechanical properties and providing bioactive potential for graphene oxide/montmorillonite hybrid dental resin composites
Scientific Reports
title Enhancing the mechanical properties and providing bioactive potential for graphene oxide/montmorillonite hybrid dental resin composites
title_full Enhancing the mechanical properties and providing bioactive potential for graphene oxide/montmorillonite hybrid dental resin composites
title_fullStr Enhancing the mechanical properties and providing bioactive potential for graphene oxide/montmorillonite hybrid dental resin composites
title_full_unstemmed Enhancing the mechanical properties and providing bioactive potential for graphene oxide/montmorillonite hybrid dental resin composites
title_short Enhancing the mechanical properties and providing bioactive potential for graphene oxide/montmorillonite hybrid dental resin composites
title_sort enhancing the mechanical properties and providing bioactive potential for graphene oxide montmorillonite hybrid dental resin composites
url https://doi.org/10.1038/s41598-022-13766-1
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