Kai Yan, Jun Wang, Yan Zong, Qunna Xu, Fei Xu and Tongtong Wang
{"title":"Janus织物传感器集成了排湿，可穿戴监控和火灾报警热电系统","authors":"Kai Yan, Jun Wang, Yan Zong, Qunna Xu, Fei Xu and Tongtong Wang","doi":"10.1039/D4TA08562K","DOIUrl":null,"url":null,"abstract":"<p >Fabric-based wearable devices have gained significant attention as next-generation flexible electronics. However, traditional fabric sensors are limited by their dense woven structures, which hinder moisture-wicking and self-powered applications. There is an urgent need to develop more portable fabric sensors that combine efficient moisture-wicking with versatile sensing capabilities. In this work, a Janus-structured fabric sensor integrating moisture-wicking (unidirectional wetting) characteristics, superior ionic thermoelectric (i-TE) properties and strain sensing capabilities was developed. The Janus fabric sensor was fabricated through a two-step sequential modification process. First, a layer of conductive polypyrrole (PPy) was synthesized directly on the fabric surface through <em>in situ</em> polymerization. Second, asymmetric surface modification was achieved: an i-TE gel was spray-coated onto one side of the fabric, while 3-(trimethoxysilyl)propyl methacrylate and poly(ethylene glycol) methacrylate were applied to the opposite side to create a hydrophilic surface. The i-TE gel was prepared by incorporating 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide into fluorine-modified polyurethane. The Janus fabric sensor, with its asymmetric architecture, achieved effective moisture-wicking and liquid transport against gravity within 2 s. It exhibited sensitive motion-sensing performance with a gauge factor of 9.37 while simultaneously showing outstanding thermoelectric properties, characterized by a Seebeck coefficient of 4.84 mV K<small><sup>−1</sup></small> and a power factor of 32.8 μW mK<small><sup>−2</sup></small>. These attributes enabled the monitoring of different human activity stages in a wearable self-powered mode. More significantly, the sensor's rapid response time of 0.2 s to flame exposure enabled common household textiles to serve as fire-warning systems. It holds a great promise as a platform for next-generation smart textiles.</p>","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":" 18","pages":" 13114-13125"},"PeriodicalIF":9.5000,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Janus fabric sensor with integrated moisture-wicking, wearable monitoring and thermoelectric capabilities for fire warning†\",\"authors\":\"Kai Yan, Jun Wang, Yan Zong, Qunna Xu, Fei Xu and Tongtong Wang\",\"doi\":\"10.1039/D4TA08562K\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Fabric-based wearable devices have gained significant attention as next-generation flexible electronics. However, traditional fabric sensors are limited by their dense woven structures, which hinder moisture-wicking and self-powered applications. There is an urgent need to develop more portable fabric sensors that combine efficient moisture-wicking with versatile sensing capabilities. In this work, a Janus-structured fabric sensor integrating moisture-wicking (unidirectional wetting) characteristics, superior ionic thermoelectric (i-TE) properties and strain sensing capabilities was developed. The Janus fabric sensor was fabricated through a two-step sequential modification process. First, a layer of conductive polypyrrole (PPy) was synthesized directly on the fabric surface through <em>in situ</em> polymerization. Second, asymmetric surface modification was achieved: an i-TE gel was spray-coated onto one side of the fabric, while 3-(trimethoxysilyl)propyl methacrylate and poly(ethylene glycol) methacrylate were applied to the opposite side to create a hydrophilic surface. The i-TE gel was prepared by incorporating 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide into fluorine-modified polyurethane. The Janus fabric sensor, with its asymmetric architecture, achieved effective moisture-wicking and liquid transport against gravity within 2 s. It exhibited sensitive motion-sensing performance with a gauge factor of 9.37 while simultaneously showing outstanding thermoelectric properties, characterized by a Seebeck coefficient of 4.84 mV K<small><sup>−1</sup></small> and a power factor of 32.8 μW mK<small><sup>−2</sup></small>. These attributes enabled the monitoring of different human activity stages in a wearable self-powered mode. More significantly, the sensor's rapid response time of 0.2 s to flame exposure enabled common household textiles to serve as fire-warning systems. It holds a great promise as a platform for next-generation smart textiles.</p>\",\"PeriodicalId\":82,\"journal\":{\"name\":\"Journal of Materials Chemistry A\",\"volume\":\" 18\",\"pages\":\" 13114-13125\"},\"PeriodicalIF\":9.5000,\"publicationDate\":\"2025-03-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Chemistry A\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2025/ta/d4ta08562k\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry A","FirstCategoryId":"88","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2025/ta/d4ta08562k","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Janus fabric sensor with integrated moisture-wicking, wearable monitoring and thermoelectric capabilities for fire warning†
Fabric-based wearable devices have gained significant attention as next-generation flexible electronics. However, traditional fabric sensors are limited by their dense woven structures, which hinder moisture-wicking and self-powered applications. There is an urgent need to develop more portable fabric sensors that combine efficient moisture-wicking with versatile sensing capabilities. In this work, a Janus-structured fabric sensor integrating moisture-wicking (unidirectional wetting) characteristics, superior ionic thermoelectric (i-TE) properties and strain sensing capabilities was developed. The Janus fabric sensor was fabricated through a two-step sequential modification process. First, a layer of conductive polypyrrole (PPy) was synthesized directly on the fabric surface through in situ polymerization. Second, asymmetric surface modification was achieved: an i-TE gel was spray-coated onto one side of the fabric, while 3-(trimethoxysilyl)propyl methacrylate and poly(ethylene glycol) methacrylate were applied to the opposite side to create a hydrophilic surface. The i-TE gel was prepared by incorporating 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide into fluorine-modified polyurethane. The Janus fabric sensor, with its asymmetric architecture, achieved effective moisture-wicking and liquid transport against gravity within 2 s. It exhibited sensitive motion-sensing performance with a gauge factor of 9.37 while simultaneously showing outstanding thermoelectric properties, characterized by a Seebeck coefficient of 4.84 mV K−1 and a power factor of 32.8 μW mK−2. These attributes enabled the monitoring of different human activity stages in a wearable self-powered mode. More significantly, the sensor's rapid response time of 0.2 s to flame exposure enabled common household textiles to serve as fire-warning systems. It holds a great promise as a platform for next-generation smart textiles.
期刊介绍：
The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.
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