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Low-impedance tissue-device interface using homogeneously conductive hydrogels chemically bonded to stretchable bioelectronics

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dc.contributor.authorShin, Yoonsoo-
dc.contributor.authorLee, Hyun Su-
dc.contributor.authorHong, Yongseok Joseph-
dc.contributor.authorSunwoo, Sung-Hyuk-
dc.contributor.authorPark, Ok Kyu-
dc.contributor.authorChoi, Sueng Hong-
dc.contributor.authorKim, Dae-Hyeong-
dc.contributor.authorLee, Sangkyu-
dc.date.accessioned2024-05-23T04:45:17Z-
dc.date.available2024-05-23T04:45:17Z-
dc.date.created2024-05-23-
dc.date.created2024-05-23-
dc.date.issued2024-03-
dc.identifier.citationScience Advances, Vol.10 No.12, p. eadi7724-
dc.identifier.issn2375-2548-
dc.identifier.urihttps://hdl.handle.net/10371/203591-
dc.description.abstractStretchable bioelectronics has notably contributed to the advancement of continuous health monitoring and point-of-care type health care. However, microscale nonconformal contact and locally dehydrated interface limit performance, especially in dynamic environments. Therefore, hydrogels can be a promising interfacial material for the stretchable bioelectronics due to their unique advantages including tissue-like softness, water-rich property, and biocompatibility. However, there are still practical challenges in terms of their electrical performance, material homogeneity, and monolithic integration with stretchable devices. Here, we report the synthesis of a homogeneously conductive polyacrylamide hydrogel with an exceptionally low impedance (similar to 21 ohms) and a reasonably high conductivity (similar to 24 S/cm) by incorporating polyaniline-decorated poly(3,4-ethylenedioxythiophene:polystyrene). We also establish robust adhesion (interfacial toughness: similar to 296.7 J/m(2)) and reliable integration between the conductive hydrogel and the stretchable device through on-device polymerization as well as covalent and hydrogen bonding. These strategies enable the fabrication of a stretchable multichannel sensor array for the high-quality on-skin impedance and pH measurements under in vitro and in vivo circumstances.-
dc.language영어-
dc.publisherAmerican Association for the Advancement of Science-
dc.titleLow-impedance tissue-device interface using homogeneously conductive hydrogels chemically bonded to stretchable bioelectronics-
dc.typeArticle-
dc.identifier.doi10.1126/sciadv.adi7724-
dc.citation.journaltitleScience Advances-
dc.identifier.wosid001217017700021-
dc.identifier.scopusid2-s2.0-85188501661-
dc.citation.number12-
dc.citation.startpageeadi7724-
dc.citation.volume10-
dc.description.isOpenAccessY-
dc.contributor.affiliatedAuthorKim, Dae-Hyeong-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.subject.keywordPlusTOUGH-
dc.subject.keywordPlusSOFT-
dc.subject.keywordPlusPH-
dc.subject.keywordPlusPOLYANILINE-
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  • College of Engineering
  • School of Chemical and Biological Engineering
Research Area Materials Science

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