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High-Sensitivity Wearable Sensor Based On a MXene Nanochannel Self-Adhesive Hydrogel
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2023-04-10 , DOI: 10.1021/acsami.3c01748
Tao Gong 1 , Zo Ngyang Li 1 , Huanyi Liang 1 , Youming Li 1 , Xia Tang 1 , Fengyue Chen 1 , Qinghua Hu 1 , HongQing Wang 1
Affiliation  

To address the shortcomings of traditional filler-based wearable hydrogels, a new type of nanochannel hydrogel sensor is fabricated in this work through a combination of the unique structure of electrospun fiber textile and the properties of a double network hydrogel. Unlike the traditional Ti3C2Tx MXene-based hydrogels, the continuously distributed Ti3C2Tx MXene in the nanochannels of the hydrogel forms a tightly interconnected structure similar to the neuron network. As a result, they have more free space to flip and perform micromovements, which allows one to significantly increase the electrical conductivity and sensitivity of the hydrogel. According to the findings, the Ti3C2Tx MXene nanochannel hydrogel has excellent mechanical properties as well as self-adhesion and antifreezing characteristics. The hydrogel sensor successfully detects different human motions and physiological signals (e.g., low pulse signals) with high stability and sensitivity. Therefore, the proposed Ti3C2Tx MXene-based hydrogel with a unique structure and properties is very promising in the field of flexible wearable devices.

中文翻译:

基于 MXene 纳米通道自粘水凝胶的高灵敏度可穿戴传感器

为了解决传统的基于填料的可穿戴水凝胶的缺点,在这项工作中,通过结合静电纺纤维纺织品的独特结构和双网络水凝胶的特性,制造了一种新型纳米通道水凝胶传感器。与传统的基于 Ti 3 C 2 T x MXene 的水凝胶不同,水凝胶纳米通道中连续分布的 Ti 3 C 2 T x MXene 形成了类似于神经元网络的紧密互连结构。因此,它们有更多的自由空间来翻转和执行微动,这使得人们可以显着提高水凝胶的导电性和敏感性。根据调查结果,Ti3 C 2 T x MXene纳米通道水凝胶具有优异的机械性能以及自粘和抗冻特性。水凝胶传感器以高稳定性和灵敏度成功地检测到不同的人体运动和生理信号(例如,低脉冲信号)。因此,所提出的具有独特结构和性能的基于Ti 3 C 2 T x MXene的水凝胶在柔性可穿戴设备领域非常有前途。
更新日期:2023-04-10
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