Meso Hybridized Silk Fibroin Watchband for Wearable Biopotential Sensing and AI Gesture Signaling

Abstract Human biopotential signals, such as electrocardiography, are closely linked to health and chronic conditions. Electromyography, corresponds to muscle actions and is pertinent to human‐machine interactions. Here, we present a type of smart and flexible watchband that includes a mini flexible...

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Main Authors: Xiao Wang, Changsheng Lu, Zerong Jiang, Guangwei Shao, Jingzhe Cao, Xiang Yang Liu
Format: Article
Language:English
Published: Wiley 2025-02-01
Series:Advanced Science
Subjects:
Online Access:https://doi.org/10.1002/advs.202410702
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author Xiao Wang
Changsheng Lu
Zerong Jiang
Guangwei Shao
Jingzhe Cao
Xiang Yang Liu
author_facet Xiao Wang
Changsheng Lu
Zerong Jiang
Guangwei Shao
Jingzhe Cao
Xiang Yang Liu
author_sort Xiao Wang
collection DOAJ
description Abstract Human biopotential signals, such as electrocardiography, are closely linked to health and chronic conditions. Electromyography, corresponds to muscle actions and is pertinent to human‐machine interactions. Here, we present a type of smart and flexible watchband that includes a mini flexible electrode array based on Mo‐Au filament mesh, combined with mesoscopic hybridized silk fibroin films. As the layer in contact with the skin, waterborne polyurethane and SF create a highly flexible and permeable meso‐hybridized SF/WPU layer, ensuring skin‐friendliness and comfortable wearing. The flexible FM electrodes are created by integrating Mo‐Au FM into 2D‐interconnected networks. Molybdenum filaments provide high rigidity and are coated with Aurum to enhance conductivity. The use of Mo‐Au FMs in warp‐knitted patterns results in high SNR (43.22 dB), high sensitivity (44.43 mV/kg), and significant motion noise reduction due to the pattern's elastic deformability and skin‐gripping properties. Leveraging these unique technologies, these smart watchbands excel in prolonged sensing operation, grasping force detection, and gesture recognition. Through smart raining via deep learning, we achieved an unparalleled recognition rate (96% across 20 volunteers of different genders) among other EMG sensing devices. These results have significant implications for human‐machine interaction, including applications in underwater robot control, drone operation, and autonomous vehicle control.
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institution Kabale University
issn 2198-3844
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spelling doaj-art-186ba6045bb547818f497b1d46d4c05c2025-02-04T13:14:54ZengWileyAdvanced Science2198-38442025-02-01125n/an/a10.1002/advs.202410702Meso Hybridized Silk Fibroin Watchband for Wearable Biopotential Sensing and AI Gesture SignalingXiao Wang0Changsheng Lu1Zerong Jiang2Guangwei Shao3Jingzhe Cao4Xiang Yang Liu5State Key Laboratory of Marine Environmental Science (MEL) College of Ocean and Earth Sciences Xiamen University Xiamen Fujian 361102 P. R. ChinaState Key Laboratory of Marine Environmental Science (MEL) College of Ocean and Earth Sciences Xiamen University Xiamen Fujian 361102 P. R. ChinaState Key Laboratory of Marine Environmental Science (MEL) College of Ocean and Earth Sciences Xiamen University Xiamen Fujian 361102 P. R. ChinaEngineering Research Center of Technical Textiles Ministry of Education College of Textiles Donghua University Shanghai 201620 P. R. ChinaCollege of Textile and Garment Shaoxing University Shaoxing Zhejiang 312000 P. R. ChinaState Key Laboratory of Marine Environmental Science (MEL) College of Ocean and Earth Sciences Xiamen University Xiamen Fujian 361102 P. R. ChinaAbstract Human biopotential signals, such as electrocardiography, are closely linked to health and chronic conditions. Electromyography, corresponds to muscle actions and is pertinent to human‐machine interactions. Here, we present a type of smart and flexible watchband that includes a mini flexible electrode array based on Mo‐Au filament mesh, combined with mesoscopic hybridized silk fibroin films. As the layer in contact with the skin, waterborne polyurethane and SF create a highly flexible and permeable meso‐hybridized SF/WPU layer, ensuring skin‐friendliness and comfortable wearing. The flexible FM electrodes are created by integrating Mo‐Au FM into 2D‐interconnected networks. Molybdenum filaments provide high rigidity and are coated with Aurum to enhance conductivity. The use of Mo‐Au FMs in warp‐knitted patterns results in high SNR (43.22 dB), high sensitivity (44.43 mV/kg), and significant motion noise reduction due to the pattern's elastic deformability and skin‐gripping properties. Leveraging these unique technologies, these smart watchbands excel in prolonged sensing operation, grasping force detection, and gesture recognition. Through smart raining via deep learning, we achieved an unparalleled recognition rate (96% across 20 volunteers of different genders) among other EMG sensing devices. These results have significant implications for human‐machine interaction, including applications in underwater robot control, drone operation, and autonomous vehicle control.https://doi.org/10.1002/advs.202410702flexible AI watchbandmeso dry electrodeMo‐Au filament networksilk fibroin
spellingShingle Xiao Wang
Changsheng Lu
Zerong Jiang
Guangwei Shao
Jingzhe Cao
Xiang Yang Liu
Meso Hybridized Silk Fibroin Watchband for Wearable Biopotential Sensing and AI Gesture Signaling
Advanced Science
flexible AI watchband
meso dry electrode
Mo‐Au filament network
silk fibroin
title Meso Hybridized Silk Fibroin Watchband for Wearable Biopotential Sensing and AI Gesture Signaling
title_full Meso Hybridized Silk Fibroin Watchband for Wearable Biopotential Sensing and AI Gesture Signaling
title_fullStr Meso Hybridized Silk Fibroin Watchband for Wearable Biopotential Sensing and AI Gesture Signaling
title_full_unstemmed Meso Hybridized Silk Fibroin Watchband for Wearable Biopotential Sensing and AI Gesture Signaling
title_short Meso Hybridized Silk Fibroin Watchband for Wearable Biopotential Sensing and AI Gesture Signaling
title_sort meso hybridized silk fibroin watchband for wearable biopotential sensing and ai gesture signaling
topic flexible AI watchband
meso dry electrode
Mo‐Au filament network
silk fibroin
url https://doi.org/10.1002/advs.202410702
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