Biocompatible and flexible transparent electrodes for skin-inspired sensing

Detalhes bibliográficos
Autor(a) principal: Pereira, Raquel
Data de Publicação: 2023
Outros Autores: Martins, Gabriela V.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/1822/84994
Resumo: In recent years, flexible electronics have experienced a massive growth as a response to the high demand for new skin-patch sensor devices targeted at personal health-monitoring. In this context, the incorporation of biopolymers into the backbone of these soft systems brings new opportunities in terms of biocompatibility and sustainability performance. However, the suitable integration of a conductive patterned material is still a challenge, in order to achieve good adhesion and high transparency. Thus, silver nanowires (AgNWs) constitute promising candidates for the fabrication of flexible transparent conductive films. Herein, a chitosan membrane doped with a plasticizer element was made conductive, through a one-step process, by using an optimized ratio of chitosan–lactic acid–AgNWs (Chi-LaA-AgNWs) dispersion. This formulation was applied using screen-printing, and the influence of the polymer ratio, cure temperature, and number of layers applied with the AgNW-based ink was investigated. Compared with conventional water-based AgNW dispersions, the here-proposed chitosan-doped ink enabled the fabrication of transparent electrode platforms holding good stability, homogeneity, and electrical features.
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spelling Biocompatible and flexible transparent electrodes for skin-inspired sensingChitosanMembraneTransparentSilver nanowiresFlexibleElectrochemicalIn recent years, flexible electronics have experienced a massive growth as a response to the high demand for new skin-patch sensor devices targeted at personal health-monitoring. In this context, the incorporation of biopolymers into the backbone of these soft systems brings new opportunities in terms of biocompatibility and sustainability performance. However, the suitable integration of a conductive patterned material is still a challenge, in order to achieve good adhesion and high transparency. Thus, silver nanowires (AgNWs) constitute promising candidates for the fabrication of flexible transparent conductive films. Herein, a chitosan membrane doped with a plasticizer element was made conductive, through a one-step process, by using an optimized ratio of chitosan–lactic acid–AgNWs (Chi-LaA-AgNWs) dispersion. This formulation was applied using screen-printing, and the influence of the polymer ratio, cure temperature, and number of layers applied with the AgNW-based ink was investigated. Compared with conventional water-based AgNW dispersions, the here-proposed chitosan-doped ink enabled the fabrication of transparent electrode platforms holding good stability, homogeneity, and electrical features.This research was funded by the SmartBioPatch project (Self-indicated biosensors integrated into flexible membranes of natural origin for application in chronic wounds), with the reference EXPL/EMD-EMD/1095/2021, financed by national funds through the Foundation for Science and Technology (FCT)info:eu-repo/semantics/publishedVersionMDPIUniversidade do MinhoPereira, RaquelMartins, Gabriela V.2023-06-092023-06-09T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/84994engPereira, Raquel L.; Martins, Gabriela, Biocompatible and Flexible Transparent Electrodes for Skin-Inspired Sensing. Engineering Proceedings. Vol. 35(1), MDPI AG, 26, 2023.2673-459110.3390/IECB2023-14588https://www.mdpi.com/2673-4591/35/1/26info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-12-23T01:37:06Zoai:repositorium.sdum.uminho.pt:1822/84994Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:51:58.896452Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Biocompatible and flexible transparent electrodes for skin-inspired sensing
title Biocompatible and flexible transparent electrodes for skin-inspired sensing
spellingShingle Biocompatible and flexible transparent electrodes for skin-inspired sensing
Pereira, Raquel
Chitosan
Membrane
Transparent
Silver nanowires
Flexible
Electrochemical
title_short Biocompatible and flexible transparent electrodes for skin-inspired sensing
title_full Biocompatible and flexible transparent electrodes for skin-inspired sensing
title_fullStr Biocompatible and flexible transparent electrodes for skin-inspired sensing
title_full_unstemmed Biocompatible and flexible transparent electrodes for skin-inspired sensing
title_sort Biocompatible and flexible transparent electrodes for skin-inspired sensing
author Pereira, Raquel
author_facet Pereira, Raquel
Martins, Gabriela V.
author_role author
author2 Martins, Gabriela V.
author2_role author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Pereira, Raquel
Martins, Gabriela V.
dc.subject.por.fl_str_mv Chitosan
Membrane
Transparent
Silver nanowires
Flexible
Electrochemical
topic Chitosan
Membrane
Transparent
Silver nanowires
Flexible
Electrochemical
description In recent years, flexible electronics have experienced a massive growth as a response to the high demand for new skin-patch sensor devices targeted at personal health-monitoring. In this context, the incorporation of biopolymers into the backbone of these soft systems brings new opportunities in terms of biocompatibility and sustainability performance. However, the suitable integration of a conductive patterned material is still a challenge, in order to achieve good adhesion and high transparency. Thus, silver nanowires (AgNWs) constitute promising candidates for the fabrication of flexible transparent conductive films. Herein, a chitosan membrane doped with a plasticizer element was made conductive, through a one-step process, by using an optimized ratio of chitosan–lactic acid–AgNWs (Chi-LaA-AgNWs) dispersion. This formulation was applied using screen-printing, and the influence of the polymer ratio, cure temperature, and number of layers applied with the AgNW-based ink was investigated. Compared with conventional water-based AgNW dispersions, the here-proposed chitosan-doped ink enabled the fabrication of transparent electrode platforms holding good stability, homogeneity, and electrical features.
publishDate 2023
dc.date.none.fl_str_mv 2023-06-09
2023-06-09T00:00:00Z
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 https://hdl.handle.net/1822/84994
url https://hdl.handle.net/1822/84994
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Pereira, Raquel L.; Martins, Gabriela, Biocompatible and Flexible Transparent Electrodes for Skin-Inspired Sensing. Engineering Proceedings. Vol. 35(1), MDPI AG, 26, 2023.
2673-4591
10.3390/IECB2023-14588
https://www.mdpi.com/2673-4591/35/1/26
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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