Temperature-sensitive and solvent-resistance hydrogel sensor for ambulatory signal acquisition in“moist/hot environment”
作者机构：Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM)School of Physical and Mathematical SciencesNanjing Tech University(NanjingTech)Nanjing 211816China School of Physical Science and Information TechnologyLiaocheng UniversityLiaocheng 252059China School of Physics and Key Laboratory of MEMS of the Ministry of EducationSoutheast UniversityNanjing 211189China School of Chemistry&Materials ScienceJiangsu Normal UniversityXuzhou 221116China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2023年第16卷第7期
页 面：10348-10357页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学]
基 金：The work was supported by the National Key R&D Program of China(No.2020YFA0709900) “Taishan scholars”construction special fund of Shandong Province
主 题：flexible electronics hydrogel sensor solvent-resistance underwater application
摘 要：To realize continuously and stably work in a“moist/hot environment,flexible electronics with excellent humid resistance,antiswelling,and detection sensitivity are ***,a solvent-resistant and temperature-ultrasensitive hydrogel sensor was prepared by combining MXene and quaternized chitosan(QCS)with the binary polymer *** strong electrostatic interaction between the QCS chain and the poly(acrylic acid)(PAA)network endows the hydrogel stability against solvent erosion,high temperature,and high *** strong dynamic interaction between MXene and polymer matrix significantly improves the mechanical properties and sensing(strain and temperature)sensitivity of the *** hydrogel strain sensor exhibits a high gauge factor(5.53),temperature/humidity tolerance(equilibrium swelling ratio of 2.5%at 80℃),and excellent cycle stability,which could achieve a remote and accurate perception of complex human motion and environment fluctuation under aquatic ***,the hydrogel sensor exhibits impressive thermal response sensitivity(-3.183%/℃),ultrashort response time(2.53 s),and a low detection limit(0.5℃)in a wide temperature range,which is applied as an indicator of the body surface and ambient *** short,this study broadens the application scenarios of hydrogels in persistent extreme thermal and wet environments.
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