NIMTE OpenIR  > 2018专题
High Performance Humidity Fluctuation Sensor for Wearable Devices via a Bioinspired Atomic-Precise Tunable Graphene-Polymer Heterogeneous Sensing Junction
He, Jiang; Xiao, Peng; Shi, Jiangwei; Liang, Yun; Lu, Wei; Chen, Yousi; Wang, Wenqin; Theato, Patrick; Kuo, Shiao-Wei; Chen, Tao
2018
Source PublicationCHEMISTRY OF MATERIALS
Volume30Issue:13Pages:4343-4354
AbstractMeasurements 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 (20ms) and recovery times (17ms) 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 monitor the respiration rate accurately. Importantly, this advanced sensor provides a new opportunity for accurate and reliable physiological and psychological monitoring by detecting the subtlest RH fluctuations on human skin in a noncontact way.
KeywordShape-memory Hydrogels Hybrid Nanocomposite Electronic Skin Breath Analysis Lie-detection Oxide Fabrication Nanosheets Interface Reduction
Subject AreaEngineering ; Environmental Sciences & Ecology
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/17321
Collection2018专题
Recommended Citation
GB/T 7714
He, Jiang,Xiao, Peng,Shi, Jiangwei,et al. High Performance Humidity Fluctuation Sensor for Wearable Devices via a Bioinspired Atomic-Precise Tunable Graphene-Polymer Heterogeneous Sensing Junction[J]. CHEMISTRY OF MATERIALS,2018,30(13):4343-4354.
APA He, Jiang.,Xiao, Peng.,Shi, Jiangwei.,Liang, Yun.,Lu, Wei.,...&Chen, Tao.(2018).High Performance Humidity Fluctuation Sensor for Wearable Devices via a Bioinspired Atomic-Precise Tunable Graphene-Polymer Heterogeneous Sensing Junction.CHEMISTRY OF MATERIALS,30(13),4343-4354.
MLA He, Jiang,et al."High Performance Humidity Fluctuation Sensor for Wearable Devices via a Bioinspired Atomic-Precise Tunable Graphene-Polymer Heterogeneous Sensing Junction".CHEMISTRY OF MATERIALS 30.13(2018):4343-4354.
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