dc.contributor.author | Aguzin, Ana | |
dc.contributor.author | Domínguez Alfaro, Antonio | |
dc.contributor.author | Criado González, Miryam | |
dc.contributor.author | Velasco Bosom, Santiago | |
dc.contributor.author | Picchio, Matías L. | |
dc.contributor.author | Casado Pérez, Nerea | |
dc.contributor.author | Mitoudi Vagourdi, Eleni | |
dc.contributor.author | Minari, Roque Javier | |
dc.contributor.author | Malliaras, George G. | |
dc.contributor.author | Mecerreyes Molero, David | |
dc.date.accessioned | 2024-03-14T18:20:24Z | |
dc.date.available | 2024-03-14T18:20:24Z | |
dc.date.issued | 2023-04-10 | |
dc.identifier.citation | Materials Horizons 10(7) : 2516-2524 (2023) | es_ES |
dc.identifier.issn | 2574-0962 | |
dc.identifier.uri | http://hdl.handle.net/10810/66171 | |
dc.description.abstract | Deep Eutectic Solvents (DES) are a new class of ionic conductive compounds attracting significant attention as greener alternatives to costly ionic liquids. Herein, we developed novel mixed ionic-electronic conducting materials by simple mixing of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS) and various DES as additives. The DES addition induces the supramolecular assembly and gelification of PEDOT:PSS triggered by extensive hydrogen bonding and charge stabilization. The DES gels also known as eutectogels feature boost the mixed ionic-electronic conductivity of PEDOT:PSS up to 368 S·cm-1, unveiling great potential as flexible bioelectronics. All the PEDOT:PSS/DES gels showed shear-thinning behavior and viscosity values ranging from 100 to 1000 Pa·s. The eutectogels show good injectability with almost instantaneous elastic recovery, making them ideal materials for direct ink writing (DIW). As proof of that, PEDOT:PSS/DES (choline chloride: lactic acid) was 3D printed in different patterns, annealed at high temperature, and assembled into adhesive electrodes. This way tattoos-like electrodes, denoted as Eutecta2 were fabricated and placed in-vivo on the forearm and the thumb of human volunteers for electromyography measurements. Eutecta2 hexagonal patterns showed excellent conformability, and their signal-to-noise ratio (SNR) was higher than Ag/AgCl commercial electrodes for thumb motion measurements. Furthermore, forearm motion was measured after 14 days with similar values of SNR, demonstrating long-term stability and reusability. All in all, our findings revealed that DES could be used as inexpensive and safe additives to direct the self-assembly of PEDOT: PSS into supramolecular eutectogels inks for flexible bioelectronics. | es_ES |
dc.description.sponsorship | This work was supported by Marie Sklodowska-Curie Research and Innovation Staff Exchanges (RISE) under grant agreement no. 823989 ‘‘IONBIKE’’ and AEI-MINECO for project PID2020-119026GB-I00. The financial support received from CONICET and ANPCyT (Argentina) is also gratefully acknowledged. Nerea Casado would like to thank the University of the Basque Country (No. 823989) for funding through a specialization of research staff fellowship (ESPDOC 19/99). Santiago Velasco-Bosom acknowledges the support from W.D Armstrong Studentship. Antonio Dominguez-Alfaro acknowledges UPV/EHU for funding transferred by the European Union-Next Generation EU by the Margarita Salas fellowship. (MARSA Nº agreement 22/77). Eleni Mitoudi Vagourdi would like to acknowledge the Swedish Chemical Society. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | RSC | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/823989 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/PID2020-119026GB-I00 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject | PEDOT:PSS | es_ES |
dc.subject | deep eutectic solvents | es_ES |
dc.subject | tattoos | es_ES |
dc.subject | 3D printing | es_ES |
dc.subject | electromyography | es_ES |
dc.title | Direct Ink Writing of PEDOT Eutectogels as Substrate-free Dry Electrodes for Electromyography | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2023 The Royal Society of Chemistry. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. | es_ES |
dc.relation.publisherversion | https://pubs.rsc.org/en/content/articlelanding/2023/mh/d3mh00310h | es_ES |
dc.contributor.funder | European Commission | |
dc.departamentoes | Ciencia y tecnología de polímeros | es_ES |
dc.departamentoeu | Polimeroen zientzia eta teknologia | es_ES |