压阻效应
气凝胶
材料科学
复合数
电极
光电子学
复合材料
纳米技术
可穿戴计算机
动态范围
计算机科学
电子工程
嵌入式系统
化学
工程类
物理化学
作者
Wenduo Wang,Jingquan Liu,Ning Zhao,Bin Yang
出处
期刊:Langmuir
[American Chemical Society]
日期:2023-09-11
卷期号:39 (38): 13571-13578
被引量:3
标识
DOI:10.1021/acs.langmuir.3c01600
摘要
Occlusal force is an important parameter for evaluating the function of the occlusal system. Traditional occlusal forces can only be measured qualitatively. Here, we report a flexible piezoresistive pressure sensor with high sensitivity and a wide measurement range for in situ occlusal force measurements through the articulating paper. The sensing layer of the flexible piezoresistive sensor is a 3D porous MXene composite aerogel, which is fabricated by vacuum freezing. The MXene piezoresistive sensor is composed of the interdigital electrodes, the sensing layer, the PI encapsulation layer, and an articulating paper encapsulation layer. The sensor shows perfect performance with high sensitivity (210.21 kPa-1), wide measurement range (∼420 kPa), and a fast response time (123 ms response time, 163 ms recovery time). The amplitude of the occlusal force, which varied with time, can be observed on the mobile phone through the wireless system with the Bluetooth module. This technique has broad application prospects in oral health. In this work, we propose a simple method and a new idea for manufacturing high-performance wearable bioelectronic sensors.
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