Recent Advances in Stretchable and Wearable Capacitive Electrophysiological Sensors for Long-Term Health Monitoring

Over the past several years, wearable electrophysiological sensors with stretchability have received significant research attention because of their capability to continuously monitor electrophysiological signals from the human body with minimal body motion artifacts, long-term tracking, and comfort...

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Main Authors: Hadaate Ullah, Md A. Wahab, Geoffrey Will, Mohammad R. Karim, Taisong Pan, Min Gao, Dakun Lai, Yuan Lin, Mahdi H. Miraz
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Biosensors
Subjects:
Online Access:https://www.mdpi.com/2079-6374/12/8/630
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author Hadaate Ullah
Md A. Wahab
Geoffrey Will
Mohammad R. Karim
Taisong Pan
Min Gao
Dakun Lai
Yuan Lin
Mahdi H. Miraz
author_facet Hadaate Ullah
Md A. Wahab
Geoffrey Will
Mohammad R. Karim
Taisong Pan
Min Gao
Dakun Lai
Yuan Lin
Mahdi H. Miraz
author_sort Hadaate Ullah
collection DOAJ
description Over the past several years, wearable electrophysiological sensors with stretchability have received significant research attention because of their capability to continuously monitor electrophysiological signals from the human body with minimal body motion artifacts, long-term tracking, and comfort for real-time health monitoring. Among the four different sensors, i.e., piezoresistive, piezoelectric, iontronic, and capacitive, capacitive sensors are the most advantageous owing to their reusability, high durability, device sterilization ability, and minimum leakage currents between the electrode and the body to reduce the health risk arising from any short circuit. This review focuses on the development of wearable, flexible capacitive sensors for monitoring electrophysiological conditions, including the electrode materials and configuration, the sensing mechanisms, and the fabrication strategies. In addition, several design strategies of flexible/stretchable electrodes, body-to-electrode signal transduction, and measurements have been critically evaluated. We have also highlighted the gaps and opportunities needed for enhancing the suitability and practical applicability of wearable capacitive sensors. Finally, the potential applications, research challenges, and future research directions on stretchable and wearable capacitive sensors are outlined in this review.
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spelling doaj.art-7d5218a6ea9b4d93858deafbd9d98f302023-12-01T23:30:22ZengMDPI AGBiosensors2079-63742022-08-0112863010.3390/bios12080630Recent Advances in Stretchable and Wearable Capacitive Electrophysiological Sensors for Long-Term Health MonitoringHadaate Ullah0Md A. Wahab1Geoffrey Will2Mohammad R. Karim3Taisong Pan4Min Gao5Dakun Lai6Yuan Lin7Mahdi H. Miraz8School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, ChinaInstitute for Advanced Study, Chengdu University, Chengdu 610106, ChinaSchool of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology, George St Brisbane, GPO Box 2434, Brisbane, QLD 4001, AustraliaCenter of Excellence for Research in Engineering Materials (CEREM), Deanship of Scientific Research (DSR), King Saud University, Riyadh 11421, Saudi ArabiaSchool of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, ChinaSchool of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, ChinaBiomedical Imaging and Electrophysiology Laboratory, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, ChinaSchool of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, ChinaSchool of Computing and Data Science, Xiamen University Malaysia, Bandar Sunsuria, Sepang 43900, MalaysiaOver the past several years, wearable electrophysiological sensors with stretchability have received significant research attention because of their capability to continuously monitor electrophysiological signals from the human body with minimal body motion artifacts, long-term tracking, and comfort for real-time health monitoring. Among the four different sensors, i.e., piezoresistive, piezoelectric, iontronic, and capacitive, capacitive sensors are the most advantageous owing to their reusability, high durability, device sterilization ability, and minimum leakage currents between the electrode and the body to reduce the health risk arising from any short circuit. This review focuses on the development of wearable, flexible capacitive sensors for monitoring electrophysiological conditions, including the electrode materials and configuration, the sensing mechanisms, and the fabrication strategies. In addition, several design strategies of flexible/stretchable electrodes, body-to-electrode signal transduction, and measurements have been critically evaluated. We have also highlighted the gaps and opportunities needed for enhancing the suitability and practical applicability of wearable capacitive sensors. Finally, the potential applications, research challenges, and future research directions on stretchable and wearable capacitive sensors are outlined in this review.https://www.mdpi.com/2079-6374/12/8/630wearable sensorselectrophysiological sensorscapacitive sensorshealth monitoringflexible electrodeslong-term health monitoring
spellingShingle Hadaate Ullah
Md A. Wahab
Geoffrey Will
Mohammad R. Karim
Taisong Pan
Min Gao
Dakun Lai
Yuan Lin
Mahdi H. Miraz
Recent Advances in Stretchable and Wearable Capacitive Electrophysiological Sensors for Long-Term Health Monitoring
Biosensors
wearable sensors
electrophysiological sensors
capacitive sensors
health monitoring
flexible electrodes
long-term health monitoring
title Recent Advances in Stretchable and Wearable Capacitive Electrophysiological Sensors for Long-Term Health Monitoring
title_full Recent Advances in Stretchable and Wearable Capacitive Electrophysiological Sensors for Long-Term Health Monitoring
title_fullStr Recent Advances in Stretchable and Wearable Capacitive Electrophysiological Sensors for Long-Term Health Monitoring
title_full_unstemmed Recent Advances in Stretchable and Wearable Capacitive Electrophysiological Sensors for Long-Term Health Monitoring
title_short Recent Advances in Stretchable and Wearable Capacitive Electrophysiological Sensors for Long-Term Health Monitoring
title_sort recent advances in stretchable and wearable capacitive electrophysiological sensors for long term health monitoring
topic wearable sensors
electrophysiological sensors
capacitive sensors
health monitoring
flexible electrodes
long-term health monitoring
url https://www.mdpi.com/2079-6374/12/8/630
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