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...
Autores principales: | , , , , , , , , , , , , |
---|---|
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 |