Highly sensitive and wearable bionic piezoelectric sensor for human respiratory monitoring

Yuan, Yangbo; Chen, Hao; Xu, Hongcheng; Jin, Yujian; Chen, Gang; Zheng, Weihao; Wang, Weidong; Wang, Yuejiao; Gao, Libo

doi:10.1016/j.sna.2022.113818

Cited by 46 publications

(22 citation statements)

References 34 publications

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“…Many physiological parameters can be measured (directly or indirectly, through estimation processes that sometimes are guided by AI algorithms), such as heart rate (HR) and its variability (HRV) [18] , [19] , [20] , [21] , energy expenditure [22 , 23] , blood pressure [24 , 25] , breathing activity [26 , 27] , thermal comfort [28 , 29] , etc. Such parameters are very relevant since they can depict the overall health status of a subject and also support the early detection of pathological symptoms, hence limiting also the risk of contagion [30] .…”

Section: Overviewmentioning

confidence: 99%

Methods for the metrological characterization of wearable devices for the measurement of physiological signals: state of the art and future challenges

2023

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Section: Overviewmentioning

confidence: 99%

Methods for the metrological characterization of wearable devices for the measurement of physiological signals: state of the art and future challenges

2023

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“…In recent years, particularly following the pandemic situation, health monitoring flexible systems for daily use have gained unprecedented attention, as they can easily predict the health conditions and detect latent diseases in real time. Flexible electronic gadgets in the form of piezoelectric, [1] piezoresistive, and capacitive [2] devices have achieved remarkable success in diagnosing health parameters and detecting body motions, [3] DOI: 10.1002/admt.202300429 respiration rate, [4] pulse wave, [5] intracranial, [6] and intraocular pressure. [7] The recent advancement of wearable sensors has enhanced the interest in photonic sensors based on optical fiber due to its advantages of electromagnetic immunity, miniature size, better sensitivity, and fast response time.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, particularly following the pandemic situation, health monitoring flexible systems for daily use have gained unprecedented attention, as they can easily predict the health conditions and detect latent diseases in real time. Flexible electronic gadgets in the form of piezoelectric, [ 1 ] piezoresistive, and capacitive [ 2 ] devices have achieved remarkable success in diagnosing health parameters and detecting body motions, [ 3 ] respiration rate, [ 4 ] pulse wave, [ 5 ] intracranial, [ 6 ] and intraocular pressure. [ 7 ]…”

Section: Introductionmentioning

confidence: 99%

Human Pulse and Respiration Monitoring: Reconfigurable and Scalable Balloon‐Shaped Fiber Wearables

Mishra

Sahu

Kumar

et al. 2023

Adv Materials Technologies

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Wearable technologies have achieved tremendous success in medical‐grade human vital signal monitoring. Herein, a unique geometry (balloon shaped) and usage of very economical polymer embedded single mode fiber based modal interferometry that not only overcome the mechanical strength restrictions of most of the fiber wearables but also fulfil the two most important and necessary requirements of any wearable system: flexibility and stretchability are reported. Here, the human pulse rate and respiration rhythm are successfully monitored by placing the wearables at appropriate positions on different human subjects. The wearable system when compared with the other two commercial approaches: piezoelectric and Photoplethysmography shows better results in terms of pulse visibility. The wrist pulse detection by the proposed system shows 72 bpm and can distinguish different human pulse parameters such as main peak, tidal peak, dicrotic wave peak, and dicrotic notch. Further, three volunteers’ heart beat values obtained from the proposed system very well match with the commercial heart‐rate meter thereby showing the alternative and better approach for futuristic health monitoring wearable device.

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“…The research of 3D-printed dynamic sensors is important since complex sensor shapes can be fabricated and embedded within structures already in the manufacturing stages [ 3 ]. Therefore, 3D-printed sensors make perfect candidates for applications such as structural health monitoring [ 4 ], vibration control [ 5 ], energy harvesting [ 6 , 7 ], metamaterials [ 8 , 9 ] and human health monitoring [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Single-Process 3D-Printed Piezoelectric Sensors with Resistive Electrodes: The Low-Pass Filtering Effect

Košir

Slavič

2022

Polymers

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Three-dimensional printing by material extrusion enables the production of fully functional dynamic piezoelectric sensors in a single process. Because the complete product is finished without additional processes or assembly steps, single-process manufacturing opens up new possibilities in the field of smart dynamic structures. However, due to material limitations, the 3D-printed piezoelectric sensors contain electrodes with significantly higher electrical resistance than classical piezoelectric sensors. The continuous distribution of the capacitance of the piezoelectric layer and the resistance of the electrodes results in low-pass filtering of the collected charge. Consequently, the usable frequency range of 3D-printed piezoelectric sensors is limited not only by the structural properties but also by the electrical properties. This research introduces an analytical model for determining the usable frequency range of a 3D-printed piezoelectric sensor with resistive electrodes. The model was used to determine the low-pass cutoff frequency and thus the usable frequency range of the 3D-printed piezoelectric sensor. The low-pass electrical cutoff frequency of the 3D-printed piezoelectric sensor was also experimentally investigated and good agreement was found with the analytical model. Based on this research, it is possible to design the electrical and dynamic characteristics of 3D-printed piezoelectric sensors. This research opens new possibilities for the design of future intelligent dynamic systems 3D printed in a single process.

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Highly sensitive and wearable bionic piezoelectric sensor for human respiratory monitoring

Cited by 46 publications

References 34 publications

Methods for the metrological characterization of wearable devices for the measurement of physiological signals: state of the art and future challenges

Methods for the metrological characterization of wearable devices for the measurement of physiological signals: state of the art and future challenges

Human Pulse and Respiration Monitoring: Reconfigurable and Scalable Balloon‐Shaped Fiber Wearables

Modeling of Single-Process 3D-Printed Piezoelectric Sensors with Resistive Electrodes: The Low-Pass Filtering Effect

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