High Performance Humidity Fluctuation Sensor for Wearable Devices via a Bioinspired Atomic-Precise Tunable Graphene-Polymer Heterogeneous Sensing Junction
By Jiang He, Peng Xiao, Jian‐jie Shi, Yun Liang, W. Lu, Yousi Chen, Wenqin Wang, P. Théato, S. Kuo, Tao Chen. Chemistry of Materials, 2018
142 citations recorded by the source corpus.
Measurements of an individual’s water metabolism dynamical information can provide us rich biological information in a noninvasive way. This concept is hindered by the trade-off between the sensitivity and responsive velocity of traditional moisture sensors. Herein, inspired by the molecular detecting system based on weak bond interactions in natural organisms, we designed a new concept of a tunable graphene-polymer heterogeneous nanosensing junction by confining a reasonable thickness sensing material into graphene nanochannels. The fundamentally new sensing mechanism based on dynamical hydrogen bonds endows the sensor with over 4 orders of magnitude sensitivity toward a wide range of relative humidity (RH) (from 0% to 97%) with unprecedented fast response (20 ms) and recovery times (17 ms) with little humidity hysteresis. The promising advantages of the sensor allow us to record humidity fluctuation information in real time during a user’s speech and breath, which can both reveal the speech feature and ...
Subfields: Bioengineering, Biomedical Engineering, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/2f103004fb89c6a6eaf5278ebfc1a0343d632275
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In Biomedical Engineering
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Citations in the corpus
- The Importance of Respiratory Rate Monitoring: From Healthcare to Sport and Exercise (2020, background): “These performances were not substantially affected by high relative humidity (~75%), wind (up to 10 m/s) or physical activity [223].”