Hybrid Piezoresistive 2D MoS2/PEGDA/PANI Covalent Hydrogels for the Sensing of Low‐to‐Medium Pressure

Sara Domenici, Sara Micheli, M. Crisci, Marcus Rohnke, Hannes Hergert, Marco Allione, Mengjiao Wang, Bernd Smarlsy, Peter J. Klar, Francesco Lamberti, Elisa Cimetta, L. Ceseracciu, Teresa Gatti
{"title":"Hybrid Piezoresistive 2D MoS2/PEGDA/PANI Covalent Hydrogels for the Sensing of Low‐to‐Medium Pressure","authors":"Sara Domenici, Sara Micheli, M. Crisci, Marcus Rohnke, Hannes Hergert, Marco Allione, Mengjiao Wang, Bernd Smarlsy, Peter J. Klar, Francesco Lamberti, Elisa Cimetta, L. Ceseracciu, Teresa Gatti","doi":"10.1002/sstr.202400131","DOIUrl":null,"url":null,"abstract":"Wearable technologies are attracting increasing attention in the materials science field, prompting a quest for active components with beneficial functional attributes whilst ensuring human and environmental safety. Hydrogels are highly biocompatible platforms with interesting mechanical properties, which can be exploited for the construction of strain sensors. In order to improve the directionality of their strain response and combine it with electrical properties to fabricate piezoresistive devices, it is possible to incorporate various types of nanofillers within the polymeric network of the hydrogels. 2D materials are ideal nanofillers thanks to their intrinsic two‐dimensional anisotropy and unique electronic properties. Herein, the covalent functionalization of 2D 1T‐MoS2 is exploited to build robust hybrid cross‐linked networks with a polyethylene glycol diacrylate gel (PEGDA). The conductivity of this nanocomposite is also further improved by inducing the interfacial polymerization of aniline. The resulting free‐standing samples demonstrate a linear and highly reversible piezoresistive response in a pressure range compatible with that of peripheral blood, while also featuring good compatibility with human skin cells, thereby making them interesting options for incorporation into wearable strain sensors.","PeriodicalId":21841,"journal":{"name":"Small Structures","volume":"73 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Small Structures","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/sstr.202400131","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Wearable technologies are attracting increasing attention in the materials science field, prompting a quest for active components with beneficial functional attributes whilst ensuring human and environmental safety. Hydrogels are highly biocompatible platforms with interesting mechanical properties, which can be exploited for the construction of strain sensors. In order to improve the directionality of their strain response and combine it with electrical properties to fabricate piezoresistive devices, it is possible to incorporate various types of nanofillers within the polymeric network of the hydrogels. 2D materials are ideal nanofillers thanks to their intrinsic two‐dimensional anisotropy and unique electronic properties. Herein, the covalent functionalization of 2D 1T‐MoS2 is exploited to build robust hybrid cross‐linked networks with a polyethylene glycol diacrylate gel (PEGDA). The conductivity of this nanocomposite is also further improved by inducing the interfacial polymerization of aniline. The resulting free‐standing samples demonstrate a linear and highly reversible piezoresistive response in a pressure range compatible with that of peripheral blood, while also featuring good compatibility with human skin cells, thereby making them interesting options for incorporation into wearable strain sensors.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
用于传感中低压的混合压阻性二维 MoS2/PEGDA/PANI 共价水凝胶
可穿戴技术越来越受到材料科学领域的关注,促使人们在确保人体和环境安全的同时,寻求具有有益功能属性的活性成分。水凝胶是一种生物相容性很高的平台,具有有趣的机械特性,可用于制造应变传感器。为了提高其应变响应的方向性,并将其与电特性相结合以制造压阻装置,可以在水凝胶的聚合物网络中加入各种类型的纳米填料。二维材料因其固有的二维各向异性和独特的电子特性而成为理想的纳米填料。本文利用二维 1T-MoS2 的共价官能化,与聚乙二醇二丙烯酸酯凝胶 (PEGDA) 构建了稳健的混合交联网络。通过诱导苯胺的界面聚合,还进一步提高了这种纳米复合材料的导电性。由此产生的独立样品在与外周血压力相容的压力范围内表现出线性和高度可逆的压阻响应,同时还与人体皮肤细胞具有良好的兼容性,因此成为将其集成到可穿戴应变传感器中的有趣选择。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
CiteScore
17.30
自引率
0.00%
发文量
0
期刊最新文献
Mesoporous Silica Nanoparticle Grafted Polypropylene Membrane toward Long-Term Efficient Oxygenation Thermal Methanol Synthesis from CO2 Using Cu/ZnO Catalysts: Insights from First-Principles Calculations Modulating Alkyl Groups in Copolymer to Control Ion Transport in Electrolyte-Gated Organic Transistors for Neuromorphic Computing Monodispersed Iron Selenide Nanoparticles United with Carbon Nanotubes for Highly Reversible Zinc–Air Batteries Clustered VCoCOx Nanosheets Anchored on MXene–Ti3C2@NF as a Superior Bifunctional Electrocatalyst for Alkaline Water Splitting
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1