A strategy towards melanin-based functional material: RGO and sulfonated melanin composites

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorBrazilian Center for Research in Energy and Materials (CNPEM)-
Autor(es): dc.creatorBregadiolli, Bruna Andressa-
Autor(es): dc.creatorPaulin, João Vitor-
Autor(es): dc.creatorAlbano, Luiz Gustavo Simão-
Autor(es): dc.creatorMartins, Lucas Michelão-
Autor(es): dc.creatorDe Camargo, Davi Henrique Starnini-
Autor(es): dc.creatorDa Silva-Filho, Luiz Carlos-
Autor(es): dc.creatorBufon, Carlos Cesar Bof-
Autor(es): dc.creatorGraeff, Carlos Frederico De Oliveira-
Data de aceite: dc.date.accessioned2025-08-21T16:12:11Z-
Data de disponibilização: dc.date.available2025-08-21T16:12:11Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2021-12-20-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1039/d1tc02749b-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/233895-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/233895-
Descrição: dc.descriptionMelanin is a natural pigment and is one of the most promising materials in the emerging field of bioelectronics. The low conductivity of this class of materials is a limiting factor to their implementation in electronics. In this work, we have improved the electrical properties of a melanin-like material by combining it with reduced graphene oxide (rGO). Three different concentrations of rGO (5, 10 and 15 wt%) were studied. The composites were structurally (SEM, Raman, XPS, FTIR, and solid-state NMR) and optically (UV-vis and PL) characterized. The electrical properties were investigated through transient current, current-voltage curves and electrochemical impedance under different humidity levels. An improved DC conductivity was found for the 15%rGO@sulfonated melanin composite. The results suggest that, together with sulfonated melanin, it could potentially be suitable for applications in bioelectronics and/or organic electronics. This journal is-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Department of Physics-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Postgraduate Program in Science and Technology of Materials (POSMAT)-
Descrição: dc.descriptionBrazilian Nanotechnology National Laboratory (LNNano) Brazilian Center for Research in Energy and Materials (CNPEM)-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Department of Chemistry-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Department of Physics-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Postgraduate Program in Science and Technology of Materials (POSMAT)-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Department of Chemistry-
Formato: dc.format16991-17002-
Idioma: dc.languageen-
Relação: dc.relationJournal of Materials Chemistry C-
???dc.source???: dc.sourceScopus-
Título: dc.titleA strategy towards melanin-based functional material: RGO and sulfonated melanin composites-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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