An investigation of the synergistic effect between magnetite nanoparticles and polypyrrole in nanostructured layer-by-layer films

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Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorde Lima, Lucas F.-
Autor(es): dc.creatorMaciel, Cristiane C. [UNESP]-
Autor(es): dc.creatorFerreira, André L.-
Autor(es): dc.creatorRubira, Rafael J. G. [UNESP]-
Autor(es): dc.creatorConstantino, Carlos J. L. [UNESP]-
Autor(es): dc.creatorFerreira, Marystela-
Data de aceite: dc.date.accessioned2022-02-22T00:35:08Z-
Data de disponibilização: dc.date.available2022-02-22T00:35:08Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2019-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/app.49750-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/202008-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/202008-
Descrição: dc.descriptionIn this paper, we report the controlled fabrication of layer-by-layer (LbL) films deposited on gold substrates with three different supramolecular architectures using polypyrrole (Ppy) and magnetite nanoparticles (Fe3O4-np), besides conventional poly(allylamine hydrochloride) (PAH) e poly(vinyl sulfonic acid) (PVS) polyelectrolytes, demonstrating the synergistic effect between Ppy and Fe3O4-np such as a result of their interaction. Modified gold electrodes were analyzed by contact angle (wettability), surface plasmon resonance (SPR), raman spectroscopy, cyclic voltammetry, and electrochemical impedance spectroscopy. The (Fe3O4-np/Ppy)3 architecture was also evaluated by scanning electron microscopy. The modified gold electrodes present more homogeneous covering, higher electron transfer and a decrease of resistance with the incorporation of the nanostructured materials such as Ppy and Fe3O4-np forming (Fe3O4-np/Ppy)3 LbL film. The results carried out in this study suggest that the (Fe3O4-np/Ppy)3 LbL film can be applied as a possible electrochemical or optical non-enzymatic sensor for analytical detection.-
Descrição: dc.descriptionCenter of Science and Technology for Sustainability (CCTS) Federal University of São Carlos (UFSCar)-
Descrição: dc.descriptionDepartment of Analytical Chemistry Institute of Chemistry State University of Campinas (UNICAMP)-
Descrição: dc.descriptionSao Paulo State University Julio de Mesquita Filho (UNESP)-
Descrição: dc.descriptionSao Paulo State University Julio de Mesquita Filho (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationJournal of Applied Polymer Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectLayer-by-Layer-
Palavras-chave: dc.subjectmicroscopy-
Palavras-chave: dc.subjectoptical properties-
Palavras-chave: dc.subjectself-assembly-
Título: dc.titleAn investigation of the synergistic effect between magnetite nanoparticles and polypyrrole in nanostructured layer-by-layer films-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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