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Liquid-in-liquid printing of 3D and mechanically tunable conductive hydrogels

Conductive hydrogels require tunable mechanical properties, high conductivity and complicated 3D structures for advanced functionality in (bio)applications. Here, we report a straightforward strategy to construct 3D conductive hydrogels by programable printing of aqueous inks rich in poly(3,4-ethyle...

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Autores principales: Xie, Xinjian, Xu, Zhonggang, Yu, Xin, Jiang, Hong, Li, Hongjiao, Feng, Wenqian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10354067/
https://www.ncbi.nlm.nih.gov/pubmed/37463898
http://dx.doi.org/10.1038/s41467-023-40004-7
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author Xie, Xinjian
Xu, Zhonggang
Yu, Xin
Jiang, Hong
Li, Hongjiao
Feng, Wenqian
author_facet Xie, Xinjian
Xu, Zhonggang
Yu, Xin
Jiang, Hong
Li, Hongjiao
Feng, Wenqian
author_sort Xie, Xinjian
collection PubMed
description Conductive hydrogels require tunable mechanical properties, high conductivity and complicated 3D structures for advanced functionality in (bio)applications. Here, we report a straightforward strategy to construct 3D conductive hydrogels by programable printing of aqueous inks rich in poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) inside of oil. In this liquid-in-liquid printing method, assemblies of PEDOT:PSS colloidal particles originating from the aqueous phase and polydimethylsiloxane surfactants from the other form an elastic film at the liquid-liquid interface, allowing trapping of the hydrogel precursor inks in the designed 3D nonequilibrium shapes for subsequent gelation and/or chemical cross-linking. Conductivities up to 301 S m(−1) are achieved for a low PEDOT:PSS content of 9 mg mL(−1) in two interpenetrating hydrogel networks. The effortless printability enables us to tune the hydrogels’ components and mechanical properties, thus facilitating the use of these conductive hydrogels as electromicrofluidic devices and to customize near-field communication (NFC) implantable biochips in the future.
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spelling pubmed-103540672023-07-20 Liquid-in-liquid printing of 3D and mechanically tunable conductive hydrogels Xie, Xinjian Xu, Zhonggang Yu, Xin Jiang, Hong Li, Hongjiao Feng, Wenqian Nat Commun Article Conductive hydrogels require tunable mechanical properties, high conductivity and complicated 3D structures for advanced functionality in (bio)applications. Here, we report a straightforward strategy to construct 3D conductive hydrogels by programable printing of aqueous inks rich in poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) inside of oil. In this liquid-in-liquid printing method, assemblies of PEDOT:PSS colloidal particles originating from the aqueous phase and polydimethylsiloxane surfactants from the other form an elastic film at the liquid-liquid interface, allowing trapping of the hydrogel precursor inks in the designed 3D nonequilibrium shapes for subsequent gelation and/or chemical cross-linking. Conductivities up to 301 S m(−1) are achieved for a low PEDOT:PSS content of 9 mg mL(−1) in two interpenetrating hydrogel networks. The effortless printability enables us to tune the hydrogels’ components and mechanical properties, thus facilitating the use of these conductive hydrogels as electromicrofluidic devices and to customize near-field communication (NFC) implantable biochips in the future. Nature Publishing Group UK 2023-07-18 /pmc/articles/PMC10354067/ /pubmed/37463898 http://dx.doi.org/10.1038/s41467-023-40004-7 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Xie, Xinjian
Xu, Zhonggang
Yu, Xin
Jiang, Hong
Li, Hongjiao
Feng, Wenqian
Liquid-in-liquid printing of 3D and mechanically tunable conductive hydrogels
title Liquid-in-liquid printing of 3D and mechanically tunable conductive hydrogels
title_full Liquid-in-liquid printing of 3D and mechanically tunable conductive hydrogels
title_fullStr Liquid-in-liquid printing of 3D and mechanically tunable conductive hydrogels
title_full_unstemmed Liquid-in-liquid printing of 3D and mechanically tunable conductive hydrogels
title_short Liquid-in-liquid printing of 3D and mechanically tunable conductive hydrogels
title_sort liquid-in-liquid printing of 3d and mechanically tunable conductive hydrogels
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10354067/
https://www.ncbi.nlm.nih.gov/pubmed/37463898
http://dx.doi.org/10.1038/s41467-023-40004-7
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