Cargando…

Flexible Wearable Strain Sensors Based on Laser-Induced Graphene for Monitoring Human Physiological Signals

Flexible wearable strain sensors based on laser-induced graphene (LIG) have attracted significant interest due to their simple preparation process, three-dimensional porous structure, excellent electromechanical characteristics, and remarkable mechanical robustness. In this study, we demonstrated th...

Descripción completa

Detalles Bibliográficos
Autores principales: Zou, Yao, Zhong, Mian, Li, Shichen, Qing, Zehao, Xing, Xiaoqing, Gong, Guochong, Yan, Ran, Qin, Wenfeng, Shen, Jiaqing, Zhang, Huazhong, Jiang, Yong, Wang, Zhenhua, Zhou, Chao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10490020/
https://www.ncbi.nlm.nih.gov/pubmed/37688180
http://dx.doi.org/10.3390/polym15173553
_version_ 1785103744266928128
author Zou, Yao
Zhong, Mian
Li, Shichen
Qing, Zehao
Xing, Xiaoqing
Gong, Guochong
Yan, Ran
Qin, Wenfeng
Shen, Jiaqing
Zhang, Huazhong
Jiang, Yong
Wang, Zhenhua
Zhou, Chao
author_facet Zou, Yao
Zhong, Mian
Li, Shichen
Qing, Zehao
Xing, Xiaoqing
Gong, Guochong
Yan, Ran
Qin, Wenfeng
Shen, Jiaqing
Zhang, Huazhong
Jiang, Yong
Wang, Zhenhua
Zhou, Chao
author_sort Zou, Yao
collection PubMed
description Flexible wearable strain sensors based on laser-induced graphene (LIG) have attracted significant interest due to their simple preparation process, three-dimensional porous structure, excellent electromechanical characteristics, and remarkable mechanical robustness. In this study, we demonstrated that LIG with various defects could be prepared on the surface of polyimide (PI) film, patterned in a single step by adjusting the scanning speed while maintaining a constant laser power of 12.4 W, and subjected to two repeated scans under ambient air conditions. The results indicated that LIG produced at a scanning speed of 70 mm/s exhibited an obvious stacked honeycomb micropore structure, and the flexible strain sensor fabricated with this material demonstrated stable resistance. The sensor exhibited high sensitivity within a low strain range of 0.4–8.0%, with the gauge factor (GF) reaching 107.8. The sensor demonstrated excellent stability and repeatable response at a strain of 2% after approximately 1000 repetitions. The flexible wearable LIG-based sensor with a serpentine bending structure could be used to detect various physiological signals, including pulse, finger bending, back of the hand relaxation and gripping, blinking eyes, smiling, drinking water, and speaking. The results of this study may serve as a reference for future applications in health monitoring, medical rehabilitation, and human–computer interactions.
format Online
Article
Text
id pubmed-10490020
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-104900202023-09-09 Flexible Wearable Strain Sensors Based on Laser-Induced Graphene for Monitoring Human Physiological Signals Zou, Yao Zhong, Mian Li, Shichen Qing, Zehao Xing, Xiaoqing Gong, Guochong Yan, Ran Qin, Wenfeng Shen, Jiaqing Zhang, Huazhong Jiang, Yong Wang, Zhenhua Zhou, Chao Polymers (Basel) Article Flexible wearable strain sensors based on laser-induced graphene (LIG) have attracted significant interest due to their simple preparation process, three-dimensional porous structure, excellent electromechanical characteristics, and remarkable mechanical robustness. In this study, we demonstrated that LIG with various defects could be prepared on the surface of polyimide (PI) film, patterned in a single step by adjusting the scanning speed while maintaining a constant laser power of 12.4 W, and subjected to two repeated scans under ambient air conditions. The results indicated that LIG produced at a scanning speed of 70 mm/s exhibited an obvious stacked honeycomb micropore structure, and the flexible strain sensor fabricated with this material demonstrated stable resistance. The sensor exhibited high sensitivity within a low strain range of 0.4–8.0%, with the gauge factor (GF) reaching 107.8. The sensor demonstrated excellent stability and repeatable response at a strain of 2% after approximately 1000 repetitions. The flexible wearable LIG-based sensor with a serpentine bending structure could be used to detect various physiological signals, including pulse, finger bending, back of the hand relaxation and gripping, blinking eyes, smiling, drinking water, and speaking. The results of this study may serve as a reference for future applications in health monitoring, medical rehabilitation, and human–computer interactions. MDPI 2023-08-26 /pmc/articles/PMC10490020/ /pubmed/37688180 http://dx.doi.org/10.3390/polym15173553 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zou, Yao
Zhong, Mian
Li, Shichen
Qing, Zehao
Xing, Xiaoqing
Gong, Guochong
Yan, Ran
Qin, Wenfeng
Shen, Jiaqing
Zhang, Huazhong
Jiang, Yong
Wang, Zhenhua
Zhou, Chao
Flexible Wearable Strain Sensors Based on Laser-Induced Graphene for Monitoring Human Physiological Signals
title Flexible Wearable Strain Sensors Based on Laser-Induced Graphene for Monitoring Human Physiological Signals
title_full Flexible Wearable Strain Sensors Based on Laser-Induced Graphene for Monitoring Human Physiological Signals
title_fullStr Flexible Wearable Strain Sensors Based on Laser-Induced Graphene for Monitoring Human Physiological Signals
title_full_unstemmed Flexible Wearable Strain Sensors Based on Laser-Induced Graphene for Monitoring Human Physiological Signals
title_short Flexible Wearable Strain Sensors Based on Laser-Induced Graphene for Monitoring Human Physiological Signals
title_sort flexible wearable strain sensors based on laser-induced graphene for monitoring human physiological signals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10490020/
https://www.ncbi.nlm.nih.gov/pubmed/37688180
http://dx.doi.org/10.3390/polym15173553
work_keys_str_mv AT zouyao flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals
AT zhongmian flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals
AT lishichen flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals
AT qingzehao flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals
AT xingxiaoqing flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals
AT gongguochong flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals
AT yanran flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals
AT qinwenfeng flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals
AT shenjiaqing flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals
AT zhanghuazhong flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals
AT jiangyong flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals
AT wangzhenhua flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals
AT zhouchao flexiblewearablestrainsensorsbasedonlaserinducedgrapheneformonitoringhumanphysiologicalsignals