MXene-Enhanced Laser-Induced Graphene Flexible Sensor with Rapid Response for Monitoring Pilots’ Body Motion
Flexible wearable strain sensors demonstrate promising application prospects in health monitoring, human-machine interaction, motion tracking, and the detection of human physiological signals. Although laser-induced graphene (LIG) materials have been extensively utilized in these scenarios, traditio...
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| Format: | Article |
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MDPI AG
2025-04-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/16/5/513 |
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| author | Xia Lei Hongyun Fan Yilin Zhao Mian Zhong Zhanghui Wu Lin Li Shouqing Li Xiaoqing Xing Jianhua Liu Yibo Sun Yong Jiang Guogang Ren |
| author_facet | Xia Lei Hongyun Fan Yilin Zhao Mian Zhong Zhanghui Wu Lin Li Shouqing Li Xiaoqing Xing Jianhua Liu Yibo Sun Yong Jiang Guogang Ren |
| author_sort | Xia Lei |
| collection | DOAJ |
| description | Flexible wearable strain sensors demonstrate promising application prospects in health monitoring, human-machine interaction, motion tracking, and the detection of human physiological signals. Although laser-induced graphene (LIG) materials have been extensively utilized in these scenarios, traditional types of LIG sensors are constrained by intrinsic limitations, including discontinuous conductive networks and electromechanical responsive hysteresis. These limitations hinder their applications in micro-strain detection scenarios. Consequently, enhancing the performance of LIG-based sensors has become a crucial priority. To address this challenge, we developed a novel MXene/LIG composite featuring optimized conductive networks and interfacial coupling effects through the systematic enhancement of LIG. The flexible strain sensor fabricated using this composite exhibits exceptional performance, including an ultra-low sheet resistance of 14.1 Ω, a high sensitivity of 20.7, a micro-strain detection limit of 0.05%, and a rapid response time of approximately 65 ms. These improvements significantly enhance electromechanical responsiveness and strain detection sensitivity. Furthermore, the sensor exhibits remarkable stability under varying tensile strains, particularly showing outstanding repeatability across 2500 cyclic tests. Notably, when applied to the pilot health monitoring scenarios, the MXene/LIG-based sensor demonstrates robust capability in detecting body movement signals such as micro-expressions and joint movements. This establishes a novel and highly effective technological solution for the real-time monitoring of pilots’ motion states during operational scenarios. |
| format | Article |
| id | doaj-art-17c96c1add264ae4b25cf60aa3fee047 |
| institution | DOAJ |
| issn | 2072-666X |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-17c96c1add264ae4b25cf60aa3fee0472025-08-20T03:14:29ZengMDPI AGMicromachines2072-666X2025-04-0116551310.3390/mi16050513MXene-Enhanced Laser-Induced Graphene Flexible Sensor with Rapid Response for Monitoring Pilots’ Body MotionXia Lei0Hongyun Fan1Yilin Zhao2Mian Zhong3Zhanghui Wu4Lin Li5Shouqing Li6Xiaoqing Xing7Jianhua Liu8Yibo Sun9Yong Jiang10Guogang Ren11College of Aviation and Electronics and Electrical, Civil Aviation Flight University of China, Deyang 618307, ChinaCollege of Aviation and Electronics and Electrical, Civil Aviation Flight University of China, Deyang 618307, ChinaFaculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaCollege of Aviation and Electronics and Electrical, Civil Aviation Flight University of China, Deyang 618307, ChinaCollege of Aviation and Electronics and Electrical, Civil Aviation Flight University of China, Deyang 618307, ChinaSchool of Mathematics and Physics, Southwest University of Science and Technology, Mianyang 621010, ChinaCivil Aviation Administration of China Academy, Civil Aviation Flight University of China, Deyang 618307, ChinaCollege of Aviation and Electronics and Electrical, Civil Aviation Flight University of China, Deyang 618307, ChinaCollege of Aviation and Electronics and Electrical, Civil Aviation Flight University of China, Deyang 618307, ChinaCollege of Aviation and Electronics and Electrical, Civil Aviation Flight University of China, Deyang 618307, ChinaSchool of Mathematics and Physics, Southwest University of Science and Technology, Mianyang 621010, ChinaSchool of Physics, Engineering and Computer Science, University of Hertfordshire, Hatfield, Hertfordshire AL10 9AB, UKFlexible wearable strain sensors demonstrate promising application prospects in health monitoring, human-machine interaction, motion tracking, and the detection of human physiological signals. Although laser-induced graphene (LIG) materials have been extensively utilized in these scenarios, traditional types of LIG sensors are constrained by intrinsic limitations, including discontinuous conductive networks and electromechanical responsive hysteresis. These limitations hinder their applications in micro-strain detection scenarios. Consequently, enhancing the performance of LIG-based sensors has become a crucial priority. To address this challenge, we developed a novel MXene/LIG composite featuring optimized conductive networks and interfacial coupling effects through the systematic enhancement of LIG. The flexible strain sensor fabricated using this composite exhibits exceptional performance, including an ultra-low sheet resistance of 14.1 Ω, a high sensitivity of 20.7, a micro-strain detection limit of 0.05%, and a rapid response time of approximately 65 ms. These improvements significantly enhance electromechanical responsiveness and strain detection sensitivity. Furthermore, the sensor exhibits remarkable stability under varying tensile strains, particularly showing outstanding repeatability across 2500 cyclic tests. Notably, when applied to the pilot health monitoring scenarios, the MXene/LIG-based sensor demonstrates robust capability in detecting body movement signals such as micro-expressions and joint movements. This establishes a novel and highly effective technological solution for the real-time monitoring of pilots’ motion states during operational scenarios.https://www.mdpi.com/2072-666X/16/5/513MXene/LIGflexible wearable strain sensorresponsebody motion |
| spellingShingle | Xia Lei Hongyun Fan Yilin Zhao Mian Zhong Zhanghui Wu Lin Li Shouqing Li Xiaoqing Xing Jianhua Liu Yibo Sun Yong Jiang Guogang Ren MXene-Enhanced Laser-Induced Graphene Flexible Sensor with Rapid Response for Monitoring Pilots’ Body Motion Micromachines MXene/LIG flexible wearable strain sensor response body motion |
| title | MXene-Enhanced Laser-Induced Graphene Flexible Sensor with Rapid Response for Monitoring Pilots’ Body Motion |
| title_full | MXene-Enhanced Laser-Induced Graphene Flexible Sensor with Rapid Response for Monitoring Pilots’ Body Motion |
| title_fullStr | MXene-Enhanced Laser-Induced Graphene Flexible Sensor with Rapid Response for Monitoring Pilots’ Body Motion |
| title_full_unstemmed | MXene-Enhanced Laser-Induced Graphene Flexible Sensor with Rapid Response for Monitoring Pilots’ Body Motion |
| title_short | MXene-Enhanced Laser-Induced Graphene Flexible Sensor with Rapid Response for Monitoring Pilots’ Body Motion |
| title_sort | mxene enhanced laser induced graphene flexible sensor with rapid response for monitoring pilots body motion |
| topic | MXene/LIG flexible wearable strain sensor response body motion |
| url | https://www.mdpi.com/2072-666X/16/5/513 |
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