Flexible electronic devices with mechanical properties like the soft tissues of human organs have great potential for the next generation of wearable and implantable electronic devices.Self-healing hydrogel composites...Flexible electronic devices with mechanical properties like the soft tissues of human organs have great potential for the next generation of wearable and implantable electronic devices.Self-healing hydrogel composites typically have high tensile strength,high electrical conductivity and damage repair properties and have wide applications in flexible electronics,such as human-computer interaction,health detection and soft robots.Various self-healing hydrogel composites have been developed to produce new stretchable conductive materials with satisfactory mechanical and selfhealing properties.This paper presents the fabrication of self-healing hydrogel composites and their application in flexible electronic devices.Firstly,the repair mechanism of physically cross-linked and chemically cross-linked self-healing hydrogel composites is presented.Secondly,self-healing double network hydrogels,self-healing nanocomposite hydrogels and double crosslinked self-healing hydrogel composites and their applications in flexible sensors,energy harvesting devices,energy storage devices and optical devices are presented and discussed.Finally,the challenges and prospects of self-healing hydrogel composites in flexible electronic devices in the future are presented.展开更多
The advancement of integrated circuits has made it easier to reduce the size of increasingly potent wearable electronic devices.However,it is still difficult to seamlessly integrate electronic systems enabling unrestr...The advancement of integrated circuits has made it easier to reduce the size of increasingly potent wearable electronic devices.However,it is still difficult to seamlessly integrate electronic systems enabling unrestricted human behavior into wearable gadgets.The procedure of creating fiber devices by twisting fiber electrodes and incorporating them into textile systems is exhibited in recent work.These textile systems are highly resilient and flexible,which makes them ideal for various wearable applications,i.e.,thread lithium-ion batteries(TLIBs),multi-ply sensing threads(MSTs),and thread electroluminescent devices(TELDs).展开更多
Purpose:Wearable devices are commonly used to measure physical activity.However,it remains unclear the effect of wearing these devices on health awareness.Our aim was to provide evidence related to wearing physical ac...Purpose:Wearable devices are commonly used to measure physical activity.However,it remains unclear the effect of wearing these devices on health awareness.Our aim was to provide evidence related to wearing physical activity trackers and health awareness.Methods:A quantitative comparison study design was used comparing participants who wore physical activity tracking devices(n=108)and those who did not(n=112).A paper-based Physical Health Knowledge survey designed for the purpose of this research was used for data collection in 2018.Results:A difference between participants who wore physical activity tracking devices and those that did not was identified in relation to activity levels and physical health awareness.Wearable devices are suggested as an opportunity for nurses to engage people in physical activity with the potential to improve their health awareness.Conclusions:Nurses are well placed in the healthcare landscape to work with patients who own an activity tracker device concerning increasing activity self-monitoring.This information the patient has from the device can also form the basis of health discussions between nurses and the people in their care.展开更多
The advancement of wearable sensing technologies demands multifunctional materials that integrate high sensitivity,environmental resilience,and intelligent signal processing.In this work,a flexible hydrophobic conduct...The advancement of wearable sensing technologies demands multifunctional materials that integrate high sensitivity,environmental resilience,and intelligent signal processing.In this work,a flexible hydrophobic conductive yarn(FCB@SY)featuring a controllable microcrack structure is developed via a synergistic approach combining ultrasonic swelling and non-solvent induced phase separation(NIPS).By embedding a robust conductive network and engineering microcrack morphology,the resulting sensor achieves an ultrahigh gauge factor(GF≈12,670),an ultrabroad working range(0%-547%),a low detection limit(0.5%),rapid response/recovery time(140 ms/140 ms),and outstanding durability over 10,000 cycles.Furthermore,the hydrophobic surface endowed by conductive coatings imparts exceptional chemical stability against acidic and alkaline environments,as well as reliable waterproof performance.This enables consistent functionality under harsh conditions,including underwater operation.Integrated with machine learning algorithms,the FCB@SY-based intelligent sensing system demonstrates dualmode capabilities in human motion tracking and gesture recognition,offering significant potential for applications in wearable electronics,human-machine interfaces,and soft robotics.展开更多
Flexible and wearable optoelectronic devices have been developing to a new stage due to their unique capacity for the possibility of a variety of wearable intelligent electronics, including bendable smartphones, folda...Flexible and wearable optoelectronic devices have been developing to a new stage due to their unique capacity for the possibility of a variety of wearable intelligent electronics, including bendable smartphones, foldable touch screens and antennas, paper-like displays, and curved and flexible solid-state lighting devices. Before extensive commercial applications, some issues still have to be solved for flexible and wearable optoelectronic devices. In this regard, this review concludes the newly emerging flexible substrate materials, transparent conductive electrodes, device architectures and light manipulation methods. Examples of these components applied for various kinds of devices are also summarized. Finally, perspectives about the bright future of flexible and wearable electronic devices are proposed.展开更多
Self-charging power systems are required for wearable electronic devices to provide energy supply.However,low charging efficiency,complex preparation process and poor wearability limit its application.Herein,a highly ...Self-charging power systems are required for wearable electronic devices to provide energy supply.However,low charging efficiency,complex preparation process and poor wearability limit its application.Herein,a highly efficient,wearable self-charging power system is reported,which consists of a triboelectric nanogenerator(TENG)with fabric coated by MXene paste as conductive layer and micro-supercapacitors(MSCs)with graphene films as electrode.The conductive layer of TENG was prepared by dip-spin coating MXene paste on cotton fabric.The electrodes of MSCs were made by mask-assisted vacuum filtration of graphene solution.The TENG conductive layer and MSCs electrodes with electrolyte were encapsulated by two identical silicone rubbers.The silicon rubbers work as triboelectric layer of the TENG as well as the protective layers of the self-charging power system.The cotton fabrics and silicon rubbers provide strength and flexibility for the system.The MXene paste on cotton fabrics provides excellent energy harvesting ability of TENG due to high conductivity and high charge trapping ability.The TENG can harvest the energy of pressing by a palm.After 147 s of continually pressing/releasing cycles,the collected energy can charge 2 series-connected MSCs array to 1.6 V,which can power an electronic watch for 25 s.Compared with similar systems,this self-charging system was constructed by a simple method from low cost starting materials and exhibits ultra-high performance.The research provides an easy and economical solution of self-charge system for wearable electronic devices.展开更多
Objective:Pediatric cancer patients endure multiple symptoms during treatment and also in survivorship.Digital health technologies provide an innovative way to support their symptom management.This review aimed to exa...Objective:Pediatric cancer patients endure multiple symptoms during treatment and also in survivorship.Digital health technologies provide an innovative way to support their symptom management.This review aimed to examine the effect of digital health technologies on managing symptoms among across pediatric cancer continuum.Methods:A systematic literature search of six English and three Chinese electronic databases was combined with hand searching,to identify eligible research studies from database establishment to November 30,2019.Two reviewers carried out data selection,data extraction,and quality appraisal independently.A narrative approach was taken to summarize data.Results:Four randomized control trials,two quasi-experiments,and five one group pre-posttest designed studies,were included in the review with a total of 425 participants.The methodological quality of the studies was generally fair.Seven symptoms(anxiety,depression,pain,anger,fatigue,fear,distress)and seven digital health technologies(visual reality,website,humanoid robot,app,wearable devices,short messages and videoconference)were reported in the included studies.Conclusions:Current evidence supports the effect of digital health technologies is generally mixed and inconclusive.There is a trend of positive effects found in the interventions that feature digital health technologies’interactive function.This review highlights the need for further investigation with rigorous research designs and the consideration of influencing factors from the symptoms,participants,and context levels to inform a better digital health implementation.展开更多
High-performance wearable electronics are highly desirable for the development of body warming and human health monitoring devices.In the present study,high electrically conductive and photothermal cotton yarns(CYs)wi...High-performance wearable electronics are highly desirable for the development of body warming and human health monitoring devices.In the present study,high electrically conductive and photothermal cotton yarns(CYs)with long-term stability were prepared as wearable electronics.The process contains back-to-back decoration of the fiber surface by Ti_(3)C_(2)T_(x)(MXene)nanosheets,and the poly(3,4-ethylenedioxythiophene)polystyrene sulfonate(PEDOT:PSS)composite,to form a core–shell structure(MP@CY).The addition of a small amount of PEDOT:PSS plays a dual role of protecting the MXene from oxidation and increasing the electrical conductivity.The resulting yarn exhibits excellent electrical conductivity(21.8Ωcm^(−1)),rapid electrothermal response,and superb photothermal conversion capability,supporting its application as an optical/electrical dual-drive heater.A three-dimensional(3D)honeycomb-like textile wearable heater based on MP@CY as weft yarn demonstrates outstanding electrical thermal properties(0–2.5 V,30–196.8°C)and exceptional photothermal conversion(130 mW cm^(−2),64.2°C).Using an Internet of Things(IoT)microcontroller and Espressif(ESP)electronics chip,which are combined with wireless fidelity(Wi-Fi)and smartphone,real-time visualization and precise control of the temperature interface can be achieved.Furthermore,MP@CY-based knitted sensors,obtained by hand-knitting,are utilized for monitoring human movement and health,exhibiting high sensitivity and long-term cycling stability.展开更多
Wearable electronic devices are gaining popularity,with textiles serving as a highly flexible platform.Organic electronic devices,known for their ultra-thin and flexible properties,are also attracting attention.This s...Wearable electronic devices are gaining popularity,with textiles serving as a highly flexible platform.Organic electronic devices,known for their ultra-thin and flexible properties,are also attracting attention.This study presents a reliable fabrication method for textile-based organic light-emitting diodes(OLEDs)using a parylene-C planarization layer.The process creates a smooth surface with sub-nanometer roughness through a simple transfer and thermal annealing,forming a self-supporting planarization layer without immersion in water or chemicals.The parylene-C film enhances crystallinity and stiffness,ensuring mechanical stability.The fabricated OLEDs operate reliably under extreme deformations such as bending and wrinkling.Additionally,a 3×3 textile-based OLED array was demonstrated for display applications,and a scarf-based OLED verified its potential in fashion.This approach highlights the seamless integration of advanced electronics into textiles,offering promising applications across industries and marking a significant advancement in wearable display technology.展开更多
The smart clothes emerge as a new generation of garments developed in the scientific and industrial communities,gaining increasing attention due to the real-time responses to exterior environments or stimuli.Owing to ...The smart clothes emerge as a new generation of garments developed in the scientific and industrial communities,gaining increasing attention due to the real-time responses to exterior environments or stimuli.Owing to the unique merits of liquid metal(LM)such as excellent fluidity,high conductivity and intrinsic stretchability in ambient environment,LM-based smart textiles are widely applied in chemical sensors,wearable electronics and stretchable devices.This review is dedicated to summarizing different preparation methods and functions of LM-based textiles(LMTs)for smart clothes,which consists of the design principles,the fabrication strategies,the working mechanism of LMTs,and the tremendous applications sorted by the features of LM.Typical methods of the synthesis to build LMTs are divided into two domains classified by spatial arrangement.One strategy is the exterior decoration with LM,while the other is interior encapsulation of LM.Moreover,the primary applications of LMT-based smart clothes have been illustrated through the utilization of the properties of LM matrix.The categorization of LMTs aims to facilitate further investigation and research in the future development of LM-based smart clothes.Finally,future prospects and opportunities of LMT-based smart clothes are discussed in this area.展开更多
Fatigue-resistant and hysteresis-free composite fibers hold great promise for the next generation of wearable electronic devices.In this study,a novel approach for the fabrication of composite fibers with outstanding ...Fatigue-resistant and hysteresis-free composite fibers hold great promise for the next generation of wearable electronic devices.In this study,a novel approach for the fabrication of composite fibers with outstanding elasticity and mechanical stability is proposed.The design incorporates a heterogeneous hierarchical structure(HHS),which mimics the structure of arteries,to achieve enhanced fatigue resistance and hysteresis-free performance.The composite fibers,Ecoflex-polyacrylamide fibers(EPFs),are created through the combination of heterogeneous elastomers and strong interfacial coupling.The results show that the EPFs exhibit exceptional fatigue resistance,being able to withstand up to 10,000 load–unload cycles at strains of 300%without any noticeable changes in their mechanical properties.The potential applications of these EPFs are demonstrated through their use as strain sensors for monitoring human motion in both air and water,as well as in energyharvesting e-textiles.展开更多
基金supported by the Linyi University 2023 High-level Talents(PhD)Research Start-up Fund(Natural Sciences)(Nos.Z6124014 and Z6124015)the College Students’Innovation and Entrepreneurship Training Program(No.X202310452291)+1 种基金the Key Research and Development Project for the Highlevel Technological Talent of Lvlang City(Nos.2023GXYF09 and 2022RC15)Scientific Research Start-up Funds of Lyuliang University.
文摘Flexible electronic devices with mechanical properties like the soft tissues of human organs have great potential for the next generation of wearable and implantable electronic devices.Self-healing hydrogel composites typically have high tensile strength,high electrical conductivity and damage repair properties and have wide applications in flexible electronics,such as human-computer interaction,health detection and soft robots.Various self-healing hydrogel composites have been developed to produce new stretchable conductive materials with satisfactory mechanical and selfhealing properties.This paper presents the fabrication of self-healing hydrogel composites and their application in flexible electronic devices.Firstly,the repair mechanism of physically cross-linked and chemically cross-linked self-healing hydrogel composites is presented.Secondly,self-healing double network hydrogels,self-healing nanocomposite hydrogels and double crosslinked self-healing hydrogel composites and their applications in flexible sensors,energy harvesting devices,energy storage devices and optical devices are presented and discussed.Finally,the challenges and prospects of self-healing hydrogel composites in flexible electronic devices in the future are presented.
基金supported by the Hunan Provincial Natural Science Foundation of China(No.2021JJ40519)the Outstanding Youth Project of Hunan Education Department(No.21B0750).
文摘The advancement of integrated circuits has made it easier to reduce the size of increasingly potent wearable electronic devices.However,it is still difficult to seamlessly integrate electronic systems enabling unrestricted human behavior into wearable gadgets.The procedure of creating fiber devices by twisting fiber electrodes and incorporating them into textile systems is exhibited in recent work.These textile systems are highly resilient and flexible,which makes them ideal for various wearable applications,i.e.,thread lithium-ion batteries(TLIBs),multi-ply sensing threads(MSTs),and thread electroluminescent devices(TELDs).
文摘Purpose:Wearable devices are commonly used to measure physical activity.However,it remains unclear the effect of wearing these devices on health awareness.Our aim was to provide evidence related to wearing physical activity trackers and health awareness.Methods:A quantitative comparison study design was used comparing participants who wore physical activity tracking devices(n=108)and those who did not(n=112).A paper-based Physical Health Knowledge survey designed for the purpose of this research was used for data collection in 2018.Results:A difference between participants who wore physical activity tracking devices and those that did not was identified in relation to activity levels and physical health awareness.Wearable devices are suggested as an opportunity for nurses to engage people in physical activity with the potential to improve their health awareness.Conclusions:Nurses are well placed in the healthcare landscape to work with patients who own an activity tracker device concerning increasing activity self-monitoring.This information the patient has from the device can also form the basis of health discussions between nurses and the people in their care.
基金the financial support of this work by the National Natural Science Foundation of China(No.52373093)Excellent Youth Found of Natural Science Foundation of Henan Province(No.242300421062)+1 种基金Central Plains Youth Top notch Talent Program of Henan Provincethe 111 project(No.D18023).
文摘The advancement of wearable sensing technologies demands multifunctional materials that integrate high sensitivity,environmental resilience,and intelligent signal processing.In this work,a flexible hydrophobic conductive yarn(FCB@SY)featuring a controllable microcrack structure is developed via a synergistic approach combining ultrasonic swelling and non-solvent induced phase separation(NIPS).By embedding a robust conductive network and engineering microcrack morphology,the resulting sensor achieves an ultrahigh gauge factor(GF≈12,670),an ultrabroad working range(0%-547%),a low detection limit(0.5%),rapid response/recovery time(140 ms/140 ms),and outstanding durability over 10,000 cycles.Furthermore,the hydrophobic surface endowed by conductive coatings imparts exceptional chemical stability against acidic and alkaline environments,as well as reliable waterproof performance.This enables consistent functionality under harsh conditions,including underwater operation.Integrated with machine learning algorithms,the FCB@SY-based intelligent sensing system demonstrates dualmode capabilities in human motion tracking and gesture recognition,offering significant potential for applications in wearable electronics,human-machine interfaces,and soft robotics.
基金supported by the Ministry of Science and Technology of China(No.2016YFB0400700)
文摘Flexible and wearable optoelectronic devices have been developing to a new stage due to their unique capacity for the possibility of a variety of wearable intelligent electronics, including bendable smartphones, foldable touch screens and antennas, paper-like displays, and curved and flexible solid-state lighting devices. Before extensive commercial applications, some issues still have to be solved for flexible and wearable optoelectronic devices. In this regard, this review concludes the newly emerging flexible substrate materials, transparent conductive electrodes, device architectures and light manipulation methods. Examples of these components applied for various kinds of devices are also summarized. Finally, perspectives about the bright future of flexible and wearable electronic devices are proposed.
基金supported by National Natural Science Foundation of China(52372284,52275187,52202364)Natural Science Foundation of Henan(232300421135).
文摘Self-charging power systems are required for wearable electronic devices to provide energy supply.However,low charging efficiency,complex preparation process and poor wearability limit its application.Herein,a highly efficient,wearable self-charging power system is reported,which consists of a triboelectric nanogenerator(TENG)with fabric coated by MXene paste as conductive layer and micro-supercapacitors(MSCs)with graphene films as electrode.The conductive layer of TENG was prepared by dip-spin coating MXene paste on cotton fabric.The electrodes of MSCs were made by mask-assisted vacuum filtration of graphene solution.The TENG conductive layer and MSCs electrodes with electrolyte were encapsulated by two identical silicone rubbers.The silicon rubbers work as triboelectric layer of the TENG as well as the protective layers of the self-charging power system.The cotton fabrics and silicon rubbers provide strength and flexibility for the system.The MXene paste on cotton fabrics provides excellent energy harvesting ability of TENG due to high conductivity and high charge trapping ability.The TENG can harvest the energy of pressing by a palm.After 147 s of continually pressing/releasing cycles,the collected energy can charge 2 series-connected MSCs array to 1.6 V,which can power an electronic watch for 25 s.Compared with similar systems,this self-charging system was constructed by a simple method from low cost starting materials and exhibits ultra-high performance.The research provides an easy and economical solution of self-charge system for wearable electronic devices.
基金supported by the China National Natural Science Foundation of China Youth Science Foundation(71904030)Shanghai Pujiang Talent Program(2019PJC006).
文摘Objective:Pediatric cancer patients endure multiple symptoms during treatment and also in survivorship.Digital health technologies provide an innovative way to support their symptom management.This review aimed to examine the effect of digital health technologies on managing symptoms among across pediatric cancer continuum.Methods:A systematic literature search of six English and three Chinese electronic databases was combined with hand searching,to identify eligible research studies from database establishment to November 30,2019.Two reviewers carried out data selection,data extraction,and quality appraisal independently.A narrative approach was taken to summarize data.Results:Four randomized control trials,two quasi-experiments,and five one group pre-posttest designed studies,were included in the review with a total of 425 participants.The methodological quality of the studies was generally fair.Seven symptoms(anxiety,depression,pain,anger,fatigue,fear,distress)and seven digital health technologies(visual reality,website,humanoid robot,app,wearable devices,short messages and videoconference)were reported in the included studies.Conclusions:Current evidence supports the effect of digital health technologies is generally mixed and inconclusive.There is a trend of positive effects found in the interventions that feature digital health technologies’interactive function.This review highlights the need for further investigation with rigorous research designs and the consideration of influencing factors from the symptoms,participants,and context levels to inform a better digital health implementation.
基金supported by the National Natural Science Foundation of China(No.52003131)the Major Scientific and Technological Innovation Program of Shandong(No.2019JZZY010340)+2 种基金China Postdoctoral Science Foundation(No.2023M731838)Youth Innovation Science and Technology Plan of Shandong Province(2020KJA013)Taishan Scholar Program of Shandong Province in China(tsqn202211116).
文摘High-performance wearable electronics are highly desirable for the development of body warming and human health monitoring devices.In the present study,high electrically conductive and photothermal cotton yarns(CYs)with long-term stability were prepared as wearable electronics.The process contains back-to-back decoration of the fiber surface by Ti_(3)C_(2)T_(x)(MXene)nanosheets,and the poly(3,4-ethylenedioxythiophene)polystyrene sulfonate(PEDOT:PSS)composite,to form a core–shell structure(MP@CY).The addition of a small amount of PEDOT:PSS plays a dual role of protecting the MXene from oxidation and increasing the electrical conductivity.The resulting yarn exhibits excellent electrical conductivity(21.8Ωcm^(−1)),rapid electrothermal response,and superb photothermal conversion capability,supporting its application as an optical/electrical dual-drive heater.A three-dimensional(3D)honeycomb-like textile wearable heater based on MP@CY as weft yarn demonstrates outstanding electrical thermal properties(0–2.5 V,30–196.8°C)and exceptional photothermal conversion(130 mW cm^(−2),64.2°C).Using an Internet of Things(IoT)microcontroller and Espressif(ESP)electronics chip,which are combined with wireless fidelity(Wi-Fi)and smartphone,real-time visualization and precise control of the temperature interface can be achieved.Furthermore,MP@CY-based knitted sensors,obtained by hand-knitting,are utilized for monitoring human movement and health,exhibiting high sensitivity and long-term cycling stability.
基金supported by the Technology Innovation Program(20018379,Development of high-reliability light-emitting fiber-based woven wearable displays)funded by the Ministry of Trade,Industry&Energy(MOTIE,Korea)supported by the Technology Innovation Program(20017569,Development of substrate materials that can be stretched more than 50% for stretchable displays)funded by the Ministry of Trade,Industry&Energy(MOTIE,Korea)supported by BK21 FOUR(Connected AI Education&Research Program for Industry and Society Innovation,KAIST EE,No.4120200113769).
文摘Wearable electronic devices are gaining popularity,with textiles serving as a highly flexible platform.Organic electronic devices,known for their ultra-thin and flexible properties,are also attracting attention.This study presents a reliable fabrication method for textile-based organic light-emitting diodes(OLEDs)using a parylene-C planarization layer.The process creates a smooth surface with sub-nanometer roughness through a simple transfer and thermal annealing,forming a self-supporting planarization layer without immersion in water or chemicals.The parylene-C film enhances crystallinity and stiffness,ensuring mechanical stability.The fabricated OLEDs operate reliably under extreme deformations such as bending and wrinkling.Additionally,a 3×3 textile-based OLED array was demonstrated for display applications,and a scarf-based OLED verified its potential in fashion.This approach highlights the seamless integration of advanced electronics into textiles,offering promising applications across industries and marking a significant advancement in wearable display technology.
基金supported by the National Natural Science Foundation of China(Grant Nos.12072054 and 22201223)Natural Science Foundation of Hubei,China(Grant No.2022CFA023)。
文摘The smart clothes emerge as a new generation of garments developed in the scientific and industrial communities,gaining increasing attention due to the real-time responses to exterior environments or stimuli.Owing to the unique merits of liquid metal(LM)such as excellent fluidity,high conductivity and intrinsic stretchability in ambient environment,LM-based smart textiles are widely applied in chemical sensors,wearable electronics and stretchable devices.This review is dedicated to summarizing different preparation methods and functions of LM-based textiles(LMTs)for smart clothes,which consists of the design principles,the fabrication strategies,the working mechanism of LMTs,and the tremendous applications sorted by the features of LM.Typical methods of the synthesis to build LMTs are divided into two domains classified by spatial arrangement.One strategy is the exterior decoration with LM,while the other is interior encapsulation of LM.Moreover,the primary applications of LMT-based smart clothes have been illustrated through the utilization of the properties of LM matrix.The categorization of LMTs aims to facilitate further investigation and research in the future development of LM-based smart clothes.Finally,future prospects and opportunities of LMT-based smart clothes are discussed in this area.
基金financially supported by the National Natural Science Foundation of China(22125903,51872283,and 22109160)Dalian Innovation Support Plan for High Level Talents(2019RT09)+2 种基金Dalian National Laboratory For Clean Energy(DNL),CAS,DNL Cooperation Fund,CAS(DNL201912,DNL201915,DNL202016,and DNL202019),DICP(DICP I2020032)the Joint Fund of Yulin University and Dalian National Laboratory for Clean Energy(YLU-DNL Fund 2021002 and YLU-DNL Fund 2021009)China Postdoctoral Science Foundation(2021M693126)。
基金supported by the National Natural Science Foundation of China(Nos.12132014,U22A20255)the 111 Project(No.B21034)+2 种基金Key Research and Development Program of Zhejiang Province(2020C05010)the Fundamental Research Funds for the Central Universities(Zhejiang University NGICS Platform)We gratefully acknowledge Shufen Dai and Lingyi Lan for their help in the experiments and/or discussions.And we thank the site(https://smart.servi er.com/)for providing the human artery diagram.
文摘Fatigue-resistant and hysteresis-free composite fibers hold great promise for the next generation of wearable electronic devices.In this study,a novel approach for the fabrication of composite fibers with outstanding elasticity and mechanical stability is proposed.The design incorporates a heterogeneous hierarchical structure(HHS),which mimics the structure of arteries,to achieve enhanced fatigue resistance and hysteresis-free performance.The composite fibers,Ecoflex-polyacrylamide fibers(EPFs),are created through the combination of heterogeneous elastomers and strong interfacial coupling.The results show that the EPFs exhibit exceptional fatigue resistance,being able to withstand up to 10,000 load–unload cycles at strains of 300%without any noticeable changes in their mechanical properties.The potential applications of these EPFs are demonstrated through their use as strain sensors for monitoring human motion in both air and water,as well as in energyharvesting e-textiles.
