自愈
明胶
自粘
胶粘剂
湿度
环境友好型
材料科学
复合材料
纳米技术
化学工程
化学
有机化学
医学
工程类
生态学
替代医学
物理
病理
图层(电子)
生物
热力学
作者
Lina Xu,Xiaomeng Li,Jianliang Gao,Manqing Yan,Qiyang Wang
标识
DOI:10.1016/j.ijbiomac.2024.136105
摘要
Intrinsic environmental and stability limitations of hydrogels have inhibited their practical applications as a flexible wearable device due to water evaporation or freezing in complex environments such as low temperatures and arid environments. In this work, a multifunctional gelatin based ionic conductive eutectogel with double network structure is designed via ternary deep eutectic solvent (DES) (acrylic acid (AA), choline chloride (ChCl) and ethylene glycol (EG)). In this system, the introduction of ethylene glycol (EG) can be used to dissolve gelatin. The resulting DESG eutectogel exhibited excellent adhesion, mechanical robustness, anti-freeze, anti-drying, and self-healing. Interestingly, the DESG gels showed high humidity sensitivity in a wide humidity detection range (11 %-83 %), which can be assembled as a self-powdered humidity sensor to monitor human mouth and nose breathing. This work is expected to bring new prospect to construct high performance humidity sensors using gelatin based humidity-responsive materials for a wide range of potential applications in respiratory diagnostics, sleep monitoring, electronic skin and wearable electronics.
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