生物电子学
压阻效应
纳米技术
材料科学
微观结构
可穿戴计算机
灵敏度(控制系统)
电子皮肤
生物传感器
光电子学
计算机科学
电子工程
复合材料
工程类
嵌入式系统
作者
Tao Yang,Weili Deng,Xiang Chu,Xiao Wang,Yeting Hu,Xi Fan,Jia Song,Yuyu Gao,Binbin Zhang,Guo Tian,Deping Xiong,Zhong Shen,Lihua Tang,Yonghe Hu,Weiqing Yang
出处
期刊:ACS Nano
[American Chemical Society]
日期:2021-06-15
卷期号:15 (7): 11555-11563
被引量:165
标识
DOI:10.1021/acsnano.1c01606
摘要
The naturally microstructure-bioinspired piezoresistive sensor for human-machine interaction and human health monitoring represents an attractive opportunity for wearable bioelectronics. However, due to the trade-off between sensitivity and linear detection range, obtaining piezoresistive sensors with both a wide pressure monitoring range and a high sensitivity is still a great challenge. Herein, we design a hierarchically microstructure-bioinspired flexible piezoresistive sensor consisting of a hierarchical polyaniline/polyvinylidene fluoride nanofiber (HPPNF) film sandwiched between two interlocking electrodes with microdome structure. Ascribed to the substantially enlarged 3D deformation rates, these bioelectronics exhibit an ultrahigh sensitivity of 53 kPa-1, a pressure detection range from 58.4 to 960 Pa, a fast response time of 38 ms, and excellent cycle stability over 50 000 cycles. Furthermore, this conformally skin-adhered sensor successfully demonstrates the monitoring of human physiological signals and movement states, such as wrist pulse, throat activity, spinal posture, and gait recognition. Evidently, this hierarchically microstructure-bioinspired and amplified sensitivity piezoresistive sensor provides a promising strategy for the rapid development of next-generation wearable bioelectronics.
科研通智能强力驱动
Strongly Powered by AbleSci AI