A strategy towards melanin-based functional material: RGO and sulfonated melanin composites
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1039/d1tc02749b http://hdl.handle.net/11449/233895 |
Resumo: | Melanin 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 |
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Repositório Institucional da UNESP |
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A strategy towards melanin-based functional material: RGO and sulfonated melanin compositesMelanin 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 isSão Paulo State University (UNESP) School of Sciences Department of PhysicsSão Paulo State University (UNESP) School of Sciences Postgraduate Program in Science and Technology of Materials (POSMAT)Brazilian Nanotechnology National Laboratory (LNNano) Brazilian Center for Research in Energy and Materials (CNPEM)São Paulo State University (UNESP) School of Sciences Department of ChemistrySão Paulo State University (UNESP) School of Sciences Department of PhysicsSão Paulo State University (UNESP) School of Sciences Postgraduate Program in Science and Technology of Materials (POSMAT)São Paulo State University (UNESP) School of Sciences Department of ChemistryUniversidade Estadual Paulista (UNESP)Brazilian Center for Research in Energy and Materials (CNPEM)Bregadiolli, Bruna Andressa [UNESP]Paulin, João Vitor [UNESP]Albano, Luiz Gustavo SimãoMartins, Lucas Michelão [UNESP]De Camargo, Davi Henrique StarniniDa Silva-Filho, Luiz Carlos [UNESP]Bufon, Carlos Cesar Bof [UNESP]Graeff, Carlos Frederico De Oliveira [UNESP]2022-05-01T11:23:35Z2022-05-01T11:23:35Z2021-12-21info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article16991-17002http://dx.doi.org/10.1039/d1tc02749bJournal of Materials Chemistry C, v. 9, n. 47, p. 16991-17002, 2021.2050-75262050-7534http://hdl.handle.net/11449/23389510.1039/d1tc02749b2-s2.0-85121143964Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Materials Chemistry Cinfo:eu-repo/semantics/openAccess2024-04-25T17:39:26Zoai:repositorio.unesp.br:11449/233895Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:59:14.290239Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A strategy towards melanin-based functional material: RGO and sulfonated melanin composites |
title |
A strategy towards melanin-based functional material: RGO and sulfonated melanin composites |
spellingShingle |
A strategy towards melanin-based functional material: RGO and sulfonated melanin composites Bregadiolli, Bruna Andressa [UNESP] |
title_short |
A strategy towards melanin-based functional material: RGO and sulfonated melanin composites |
title_full |
A strategy towards melanin-based functional material: RGO and sulfonated melanin composites |
title_fullStr |
A strategy towards melanin-based functional material: RGO and sulfonated melanin composites |
title_full_unstemmed |
A strategy towards melanin-based functional material: RGO and sulfonated melanin composites |
title_sort |
A strategy towards melanin-based functional material: RGO and sulfonated melanin composites |
author |
Bregadiolli, Bruna Andressa [UNESP] |
author_facet |
Bregadiolli, Bruna Andressa [UNESP] Paulin, João Vitor [UNESP] Albano, Luiz Gustavo Simão Martins, Lucas Michelão [UNESP] De Camargo, Davi Henrique Starnini Da Silva-Filho, Luiz Carlos [UNESP] Bufon, Carlos Cesar Bof [UNESP] Graeff, Carlos Frederico De Oliveira [UNESP] |
author_role |
author |
author2 |
Paulin, João Vitor [UNESP] Albano, Luiz Gustavo Simão Martins, Lucas Michelão [UNESP] De Camargo, Davi Henrique Starnini Da Silva-Filho, Luiz Carlos [UNESP] Bufon, Carlos Cesar Bof [UNESP] Graeff, Carlos Frederico De Oliveira [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Brazilian Center for Research in Energy and Materials (CNPEM) |
dc.contributor.author.fl_str_mv |
Bregadiolli, Bruna Andressa [UNESP] Paulin, João Vitor [UNESP] Albano, Luiz Gustavo Simão Martins, Lucas Michelão [UNESP] De Camargo, Davi Henrique Starnini Da Silva-Filho, Luiz Carlos [UNESP] Bufon, Carlos Cesar Bof [UNESP] Graeff, Carlos Frederico De Oliveira [UNESP] |
description |
Melanin 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 |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-21 2022-05-01T11:23:35Z 2022-05-01T11:23:35Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1039/d1tc02749b Journal of Materials Chemistry C, v. 9, n. 47, p. 16991-17002, 2021. 2050-7526 2050-7534 http://hdl.handle.net/11449/233895 10.1039/d1tc02749b 2-s2.0-85121143964 |
url |
http://dx.doi.org/10.1039/d1tc02749b http://hdl.handle.net/11449/233895 |
identifier_str_mv |
Journal of Materials Chemistry C, v. 9, n. 47, p. 16991-17002, 2021. 2050-7526 2050-7534 10.1039/d1tc02749b 2-s2.0-85121143964 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Materials Chemistry C |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
16991-17002 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128444251242496 |