基于银纳米线/MXene复合材料的运动监测高性能可穿戴压力传感器

IF 7.9 3区 材料科学 Q1 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
Zixiao Cai , Mingjuan Xu , Xing Li , Wenhao Liu , Hao Yu , Mingfeng Yuan
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引用次数: 0

摘要

基于二维材料的柔性压力传感器在医疗健康监测、可穿戴电子产品和人机交互方面具有很大的应用前景。与传统材料相比,MXene是一种2D材料,具有高导电性、大比表面积和优异的机械灵活性,使其成为压力传感器的理想候选材料。然而,在压力传感器中实现高灵敏度、快速响应和长期稳定性仍然是一个挑战。在这项研究中,利用MXene-Ag纳米管复合材料开发了一种高导电性和稳定性的柔性传感层。此外,采用仿生微结构设计优化传感器的力学和电气性能,提高了接触界面的稳定性和整体传感性能。实验结果表明,该传感器具有超高灵敏度(最小可检测压力为0.1 Pa),快速响应时间(42 ms),快速恢复时间(21 ms),良好的线性响应和出色的循环稳定性(>;5000次循环)。此外,该传感器可以精确检测不同速度下的压力变化,并已成功应用于人体运动监测、微压力检测和脉冲信号传感。值得注意的是,在医疗诊断方面,该设备可以准确检测心血管疾病患者的脉搏信号,提供了一种低成本、便携、无创的健康监测解决方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High-performance wearable pressure sensor based on Ag nanowire/MXene composite for motion monitoring
Flexible pressure sensors based on 2D materials hold great promise for applications in medical health monitoring, wearable electronics, and human-machine interaction. Compared to conventional materials, MXene, a 2D material, exhibits high electrical conductivity, a large specific surface area, and excellent mechanical flexibility, making it an ideal candidate for pressure sensors. However, achieving high sensitivity, fast response, and long-term stability in pressure sensors remains a challenge. In this study, a highly conductive and stable flexible sensing layer was developed using an MXene-Ag nanotube composite. Additionally, a biomimetic microstructure design was employed to optimize the mechanical and electrical properties of the sensor, enhancing the stability of the contact interface and overall sensing performance. Experimental results demonstrate that the proposed sensor exhibits ultrahigh sensitivity (minimum detectable pressure of 0.1 Pa), rapid response time (42 ms), fast recovery time (21 ms), excellent linear response, and outstanding cycling stability (>5000 cycles). Furthermore, the sensor can precisely detect pressure variations at different speeds and has been successfully applied to human motion monitoring, micro-pressure detection, and pulse signal sensing. Notably, in medical diagnostics, the device can accurately detect the pulse signals of cardiovascular disease patients, providing a low-cost, portable, and non-invasive health monitoring solution.
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来源期刊
CiteScore
5.80
自引率
6.40%
发文量
174
审稿时长
32 days
期刊介绍: Materials Today Sustainability is a multi-disciplinary journal covering all aspects of sustainability through materials science. With a rapidly increasing population with growing demands, materials science has emerged as a critical discipline toward protecting of the environment and ensuring the long term survival of future generations.
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