Wearable sensors for continuous physiological monitoring during intense exercise face significant challenges,including motion artifacts and skin discomfort.Conductive hydrogels offer a promising solution due to their ...Wearable sensors for continuous physiological monitoring during intense exercise face significant challenges,including motion artifacts and skin discomfort.Conductive hydrogels offer a promising solution due to their skin-like flexibility and excellent electrical conductivity,yet their application in extreme conditions like marathon running remains challenges.Here,we develop a MXene-based dual-network hydrogel composed of polyvinyl alcohol(PVA)and tempo-oxidized cellulose nanofibers(TOCNF)crosslinked with MXene nanosheets and borax.This hydrogel exhibits exceptional environmental stability(35 days at 4℃and 30%relative humidity)and strain sensitivity(gauge factor of 7.79 at 800%strain),while MXene integration provides outstanding antibacterial properties(>99%inhibition).As a proof of concept,under simulated marathon conditions(38℃,52%relative humidity),the sensor maintains stable performance for 6 h,demonstrating reliable heart rate and respiration monitoring.These capabilities are crucial for identifying early signs of cardiorespiratory abnormalities during endurance sports.Our work presents a robust strategy for developing wearable hydrogel sensors with long-term reliability in extreme environments,offering significant potential for sports medicine,exercise physiology,and continuous health monitoring applications.展开更多
基金support from the programs of the Natural Science Foundation of Jiangsu Higher Education(24KJB460030)the National Natural Science Foundation of China(62204210,62573363)+7 种基金the Science Foundation of Jiangsu Province(BK20220284)the XJTLU University RDF project(RDF-21-02-076,RDF-21-01-027)the XJTLU AI University Research Centre,Jiangsu Province Engineering Research Centre of Data Science and Cognitive Computation at XJTLU,the SIP AI innovation platform(YZCXPT2022103)the State Key Laboratory for Manufacturing Systems Engineering via the open project(SKLMS2023019)the Key Laboratory of Bionic Engineering,Ministry of Education at Jilin University(KF2023007)the Jiangsu Provincial Outstanding Youth Program(BK20230072)Suzhou Industrial Foresight and Key Core Technology Project(SYC2022044)the Jiangsu QingLan Project and Jiangsu 333 high-level talents.
文摘Wearable sensors for continuous physiological monitoring during intense exercise face significant challenges,including motion artifacts and skin discomfort.Conductive hydrogels offer a promising solution due to their skin-like flexibility and excellent electrical conductivity,yet their application in extreme conditions like marathon running remains challenges.Here,we develop a MXene-based dual-network hydrogel composed of polyvinyl alcohol(PVA)and tempo-oxidized cellulose nanofibers(TOCNF)crosslinked with MXene nanosheets and borax.This hydrogel exhibits exceptional environmental stability(35 days at 4℃and 30%relative humidity)and strain sensitivity(gauge factor of 7.79 at 800%strain),while MXene integration provides outstanding antibacterial properties(>99%inhibition).As a proof of concept,under simulated marathon conditions(38℃,52%relative humidity),the sensor maintains stable performance for 6 h,demonstrating reliable heart rate and respiration monitoring.These capabilities are crucial for identifying early signs of cardiorespiratory abnormalities during endurance sports.Our work presents a robust strategy for developing wearable hydrogel sensors with long-term reliability in extreme environments,offering significant potential for sports medicine,exercise physiology,and continuous health monitoring applications.
