An integrated flexible self-powered wearable respiration sensor

Abstract Human respiration is rich in physiological and pathological information for health assessment and illness prediction. In this work, an integrated triboelectric self-powered respiration sensor (TSRS) was developed for simultaneously monitoring human respiratory behaviors and NH3 concentration in exhaled gases. The TSRS based on Ce-doping ratio of 0.004 M exhibits a better selectivity and larger sensitivity of 20.13 ppm−1 compared with those synthesized in other doping ratios. Under the same moisture as the breathing gas (97.5%RH), the sensor holds greater sensitivity toward NH3 at low concentration (0.1–1 ppm) than that at high concentration (1–10 ppm), implying the capability in detecting trace level NH3 biomarker in human breathing gases. Furthermore, triggered by the expansion and contraction of chest during breathing, TSRS can spontaneously monitor human respiratory patterns and physiological process after physical exercise. Meanwhile, a theoretical modeling was established in terms of permittivity change under gas molecules adsorption and verified via finite element simulation to interpret the self-powered sensing behaviors. This research not only proposes a promising approach to develop an all-in-one wearable respiration monitoring system for personal health diagnosis but also sheds some light on the theoretical modeling of triboelectric self-powered gas-sensing in terms of permittivity change.

[1]  Yan Zhang,et al.  Outputting Olfactory Bionic Electric Impulse by PANI/PTFE/PANI Sandwich Nanostructures and their Application as Flexible, Smelling Electronic Skin , 2016 .

[2]  Junjie Bai,et al.  A Self‐Powered Angle Measurement Sensor Based on Triboelectric Nanogenerator , 2015 .

[3]  Zhiming Lin,et al.  Large‐Scale and Washable Smart Textiles Based on Triboelectric Nanogenerator Arrays for Self‐Powered Sleeping Monitoring , 2018 .

[4]  Yadong Jiang,et al.  Ultrasensitive flexible self-powered ammonia sensor based on triboelectric nanogenerator at room temperature , 2018, Nano Energy.

[5]  Zhong Lin Wang,et al.  Flexible triboelectric generator , 2012 .

[6]  H. Nagabhushana,et al.  Combustion synthesis, characterization and Raman studies of ZnO nanopowders. , 2011, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

[7]  Huimin Yu,et al.  Surface charge self-recovering electret film for wearable energy conversion in a harsh environment , 2016 .

[8]  Nannan Zhang,et al.  Progress in triboelectric nanogenerators as self-powered smart sensors , 2017 .

[9]  Qingqing Shen,et al.  Self‐Powered Vehicle Emission Testing System Based on Coupling of Triboelectric and Chemoresistive Effects , 2018 .

[10]  M. S. Akhtar,et al.  Ce-doped ZnO nanoparticles for efficient photocatalytic degradation of direct red-23 dye , 2015 .

[11]  Long Lin,et al.  Stretchable‐Rubber‐Based Triboelectric Nanogenerator and Its Application as Self‐Powered Body Motion Sensors , 2015 .

[12]  Yadong Jiang,et al.  A high-performance flexible gas sensor based on self-assembled PANI-CeO2 nanocomposite thin film for trace-level NH3 detection at room temperature , 2017 .

[13]  Ki-Hyun Kim,et al.  A review of breath analysis for diagnosis of human health , 2012 .

[14]  Yuanjie Su,et al.  Visible light-assisted room temperature gas sensing with ZnO-Ag heterostructure nanoparticles , 2018 .

[15]  Simiao Niu,et al.  Theoretical systems of triboelectric nanogenerators , 2015 .

[16]  Do Hong Kim,et al.  Flexible Room-Temperature NH3 Sensor for Ultrasensitive, Selective, and Humidity-Independent Gas Detection. , 2018, ACS applied materials & interfaces.

[17]  Zhong Lin Wang,et al.  Triboelectric Nanogenerator Enabled Body Sensor Network for Self-Powered Human Heart-Rate Monitoring. , 2017, ACS nano.

[18]  Zhong Lin Wang,et al.  Reviving Vibration Energy Harvesting and Self-Powered Sensing by a Triboelectric Nanogenerator , 2017 .

[19]  Yang Shen,et al.  High‐Throughput Phase‐Field Design of High‐Energy‐Density Polymer Nanocomposites , 2018, Advanced materials.

[20]  Yuanhua Lin,et al.  Controlled functionalization of poly(4-methyl-1-pentene) films for high energy storage applications , 2016 .

[21]  Peng Bai,et al.  Personalized keystroke dynamics for self-powered human--machine interfacing. , 2015, ACS nano.

[22]  Hengyu Guo,et al.  Blow-driven triboelectric nanogenerator as an active alcohol breath analyzer , 2015 .

[23]  Hyun Seok Song,et al.  Humidity‐Tolerant Single‐Stranded DNA‐Functionalized Graphene Probe for Medical Applications of Exhaled Breath Analysis , 2017 .

[24]  Zhong Lin Wang,et al.  Triboelectrification based motion sensor for human-machine interfacing. , 2014, ACS applied materials & interfaces.

[25]  Keren Dai,et al.  Harvesting Ambient Vibration Energy over a Wide Frequency Range for Self-Powered Electronics. , 2017, ACS nano.

[26]  Bo Wang,et al.  Electrospun polyetherimide electret nonwoven for bi-functional smart face mask , 2017 .

[27]  Yadong Jiang,et al.  A facile respiration-driven triboelectric nanogenerator for multifunctional respiratory monitoring , 2019, Nano Energy.

[28]  Yu Song,et al.  Flexible fiber-based hybrid nanogenerator for biomechanical energy harvesting and physiological monitoring , 2017 .

[29]  Zhong Lin Wang,et al.  Flexible Weaving Constructed Self‐Powered Pressure Sensor Enabling Continuous Diagnosis of Cardiovascular Disease and Measurement of Cuffless Blood Pressure , 2018, Advanced Functional Materials.

[30]  Qiongfeng Shi,et al.  More than energy harvesting – Combining triboelectric nanogenerator and flexible electronics technology for enabling novel micro-/nano-systems , 2019, Nano Energy.

[31]  H Zhao,et al.  A novel coral-shaped Dy2O3 gas sensor for high sensitivity NH3 detection at room temperature , 2018 .

[32]  G. Zhu,et al.  Membrane‐Based Self‐Powered Triboelectric Sensors for Pressure Change Detection and Its Uses in Security Surveillance and Healthcare Monitoring , 2014 .

[33]  X. L. Xu,et al.  Preparation, characterization and gas sensing properties of pure and Ce doped ZnO hollow nanofibers , 2015 .

[34]  M. Yousefi,et al.  Effect of annealing temperature on growth of Ce-ZnO nanocomposite thin films: X-ray photoelectron spectroscopy study , 2011 .

[35]  A. Ismail,et al.  Highly efficient photocatalyst based on Ce doped ZnO nanorods: Controllable synthesis and enhanced photocatalytic activity , 2013 .

[36]  A. Maguer,et al.  Effect of hydrothermal ripening on the photoluminescence properties of pure and doped cerium oxide nanoparticles , 2010 .

[37]  V. Murugesan,et al.  Synthesis and characterization of Zr4+, La3+ and Ce3+ doped mesoporous TiO2: evaluation of their photocatalytic activity. , 2011, Journal of hazardous materials.

[38]  Zhaona Wang,et al.  Eardrum‐Inspired Active Sensors for Self‐Powered Cardiovascular System Characterization and Throat‐Attached Anti‐Interference Voice Recognition , 2015, Advanced materials.

[39]  Jun Chen,et al.  Epidermis-Inspired Ultrathin 3D Cellular Sensor Array for Self-Powered Biomedical Monitoring. , 2018, ACS applied materials & interfaces.

[40]  Jing Sun,et al.  A stretchable fiber nanogenerator for versatile mechanical energy harvesting and self-powered full-range personal healthcare monitoring , 2017 .

[41]  Feng Zhou,et al.  Self-powered ammonia nanosensor based on the integration of the gas sensor and triboelectric nanogenerator , 2018, Nano Energy.

[42]  Anton Amann,et al.  Breath analysis by nanostructured metal oxides as chemo-resistive gas sensors , 2015 .

[43]  Yadong Jiang,et al.  Self-powered room temperature NO2 detection driven by triboelectric nanogenerator under UV illumination , 2018 .

[44]  Gwiy-Sang Chung,et al.  A self-powered active hydrogen gas sensor with fast response at room temperature based on triboelectric effect , 2016 .