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Article: Hybrid assembly of polymeric nanofiber network for robust and electronically conductive hydrogels

TitleHybrid assembly of polymeric nanofiber network for robust and electronically conductive hydrogels
Authors
Issue Date10-Feb-2023
PublisherNature Research
Citation
Nature Communications, 2023, v. 14, n. 1 How to Cite?
Abstract

Electroconductive hydrogels have been applied in implantable bioelectronics, tissue engineering platforms, soft actuators, and other emerging technologies. However, achieving high conductivity and mechanical robustness remains challenging. Here we report an approach to fabricating electroconductive hydrogels based on the hybrid assembly of polymeric nanofiber networks. In these hydrogels, conducting polymers self-organize into highly connected three dimensional nanostructures with an ultralow threshold (~1 wt%) for electrical percolation, assisted by templating effects from aramid nanofibers, to achieve high electronic conductivity and structural robustness without sacrificing porosity or water content. We show that a hydrogel composed of polypyrrole, aramid nanofibers and polyvinyl alcohol achieves conductivity of ~80 S cm−1, mechanical strength of ~9.4 MPa and stretchability of ~36%. We show that patterned conductive nanofiber hydrogels can be used as electrodes and interconnects with favorable electrochemical impedance and charge injection capacity for electrophysiological applications. In addition, we demonstrate that cardiomyocytes cultured on soft and conductive nanofiber hydrogel substrates exhibit spontaneous and synchronous beating, suggesting opportunities for the development of advanced implantable devices and tissue engineering technologies.


Persistent Identifierhttp://hdl.handle.net/10722/337234
ISSN
2023 Impact Factor: 14.7
2023 SCImago Journal Rankings: 4.887
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHe, Huimin-
dc.contributor.authorLi, Hao-
dc.contributor.authorPu, Aoyang-
dc.contributor.authorLi, Wenxiu-
dc.contributor.authorBan, Kiwon-
dc.contributor.authorXu, Lizhi-
dc.date.accessioned2024-03-11T10:19:06Z-
dc.date.available2024-03-11T10:19:06Z-
dc.date.issued2023-02-10-
dc.identifier.citationNature Communications, 2023, v. 14, n. 1-
dc.identifier.issn2041-1723-
dc.identifier.urihttp://hdl.handle.net/10722/337234-
dc.description.abstract<p>Electroconductive hydrogels have been applied in implantable bioelectronics, tissue engineering platforms, soft actuators, and other emerging technologies. However, achieving high conductivity and mechanical robustness remains challenging. Here we report an approach to fabricating electroconductive hydrogels based on the hybrid assembly of polymeric nanofiber networks. In these hydrogels, conducting polymers self-organize into highly connected three dimensional nanostructures with an ultralow threshold (~1 wt%) for electrical percolation, assisted by templating effects from aramid nanofibers, to achieve high electronic conductivity and structural robustness without sacrificing porosity or water content. We show that a hydrogel composed of polypyrrole, aramid nanofibers and polyvinyl alcohol achieves conductivity of ~80 S cm<sup>−1</sup>, mechanical strength of ~9.4 MPa and stretchability of ~36%. We show that patterned conductive nanofiber hydrogels can be used as electrodes and interconnects with favorable electrochemical impedance and charge injection capacity for electrophysiological applications. In addition, we demonstrate that cardiomyocytes cultured on soft and conductive nanofiber hydrogel substrates exhibit spontaneous and synchronous beating, suggesting opportunities for the development of advanced implantable devices and tissue engineering technologies.<br></p>-
dc.languageeng-
dc.publisherNature Research-
dc.relation.ispartofNature Communications-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleHybrid assembly of polymeric nanofiber network for robust and electronically conductive hydrogels-
dc.typeArticle-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1038/s41467-023-36438-8-
dc.identifier.scopuseid_2-s2.0-85147895730-
dc.identifier.volume14-
dc.identifier.issue1-
dc.identifier.eissn2041-1723-
dc.identifier.isiWOS:001053836600019-
dc.identifier.issnl2041-1723-

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