Wearable Pressure Sensors Based on MXene/Tissue Papers for Wireless Human Health Monitoring
Wearable Pressure Sensors Based on MXene/Tissue Papers for Wireless Human Health Monitoring
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DOI：
10.1021/acsami.1c22001
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发表时间：
2021-11-30
影响因子：
9.5
通讯作者：
Cheng, Huanyu
中科院分区：
文献类型：
--
作者：
Yang, Li;Wang, Hongli;Cheng, Huanyu
尽管在柔性纸基压力传感器中已经探索了广泛可用的、低成本的和一次性的纸，但是它们仍然难以同时实现高灵敏度、低极限和宽范围的检测以及高压力分辨率。在此，我们展示了一种新型的柔性纸基压力传感平台，其特征在于夹在聚酰亚胺封装层和具有叉指电极的印刷纸之间的MXene涂层薄纸（MTP）。在MTP压力传感器中用称重纸代替聚酰亚胺后，银叉指电极可以通过焚烧回收。采用聚酰亚胺或纸封装的压力传感器具有509.5或344.0 kPa（-1）的高灵敏度、低极限（类似于1 Pa）和宽范围（100 kPa）的检测以及超过10000次加载/卸载循环的出色稳定性。该柔性压力传感器在宽压力范围内具有极高的灵敏度，可监测各种生理信号和人体运动。将压力传感器配置成阵列布局导致智能人工电子皮肤识别空间压力分布。柔性压力传感器还可以与面罩上的信号处理和无线通信模块集成，作为远程呼吸监测系统，以无线检测各种呼吸状况和呼吸异常，用于阿片类药物过量、肺纤维化和其他心肺疾病的早期自我识别。
Though the widely available, low-cost, and disposable papers have been explored in flexible paper-based pressure sensors, it is still difficult for them to simultaneously achieve ultrahigh sensitivity, low limit and broad range of detection, and high-pressure resolution. Herein, we demonstrate a novel flexible paper-based pressure sensing platform that features the MXene-coated tissue paper (MTP) sandwiched between a polyimide encapsulation layer and a printing paper with interdigital electrodes. After replacing the polyimide with weighing paper in the MTP pressure sensor, the silver interdigital electrodes can be recycled through incineration. The resulting pressure sensor with polyimide or paper encapsulation exhibits a high sensitivity of 509.5 or 344.0 kPa(-1), a low limit (similar to 1 Pa) and a broad range (100 kPa) of detection, and outstanding stability over 10 000 loading/unloading cycles. With ultrahigh sensitivity over a wide pressure range, the flexible pressure sensor can monitor various physiological signals and human movements. Configuring the pressure sensors into an array layout results in a smart artificial electronic skin to recognize the spatial pressure distribution. The flexible pressure sensor can also be integrated with signal processing and wireless communication modules on a face mask as a remote respiration monitoring system to wirelessly detect various respiration conditions and respiratory abnormalities for early self-identification of opioid overdose, pulmonary fibrosis, and other cardiopulmonary diseases.