Electronic textile represents the future of wearable electronics,offering unparalleled permeability and comfort,and holding immense promise for next-generation sensing,communication and smart functionalities.A critica...Electronic textile represents the future of wearable electronics,offering unparalleled permeability and comfort,and holding immense promise for next-generation sensing,communication and smart functionalities.A critical enabler of these capabilities is the integration of stretchable,stable and customizable circuits.However,achieving high-resolution,seamlessly integrated circuits with robust electrical and mechanical performance directly on textiles remains a formidable challenge.Here,we introduce a novel photopatterning strategy for high-resolution,stretchable textile circuits based on surface-modified liquid metal nanoparticles.Our approach uniquely leverages coordination bonding between photopolymerizable monomers and the native oxide layer of liquid metal,enabling the nanoparticles to actively participate in photopolymerization.The process forms a crosslinked polymer network that not only allows for precise microscale patterning but also significantly enhances the electromechanical stability of the circuits.The resulting textile circuits exhibit a resolution of 100 μm,stretchability of up to 200%with minimal resistance change(ΔR < 0.1),and durability against repeated mechanical deformations including stretching,bending,and twisting.Moreover,they demonstrate environmental robustness,maintaining stable performance across varying humidity and temperatures,and even enduring practical scenarios such as washing,pressing,wrinkling and ironing.With this integrated strategy,a stretchable textile sensing system is developed as a breathable healthcare wristband for prolonged and irritation-free healthcare monitoring.By combining chemical design with photopatterning precision,this work establishes a versatile and scalable platform for the fabrication of advanced textile electronics.展开更多
Electromagnetic interference(EMI)shielding materials play a crucial role in safeguarding electronic devices from external interference,ensuring their stable operation.Despite their effectiveness,traditional metallic E...Electromagnetic interference(EMI)shielding materials play a crucial role in safeguarding electronic devices from external interference,ensuring their stable operation.Despite their effectiveness,traditional metallic EMI shielding materials face significant limits,such as high weight density,rigidity,and limited adaptability to complex circuitry.In this study,a lightweight,flexible carbon nanotube(CNT)fabric with superior EMI shielding performance was developed through the scalable preparation of CNT fibers and knitting of CNT yarns.The CNT fibers demonstrated excellent specific tensile strength(25.3 cN/dtex)and high electrical conductivity(3634.2±114.0 S/cm).The resulting CNT fabric achieved an EMI shielding effectiveness of 66.8 dB for a single layer and 111 dB for multiple layers while maintaining an ultralow density of 0.2 g/cm^(3).Additionally,the CNT fabric was durable to withstand repeated bending and washing.When applied as the EMI shielding layer in coaxial cables,the CNT fabric delivered comparable signal transmission performance to that of copper while reducing the mass of the shielding layer by 32.1%.These comprehensive properties position CNT fabric as a promising alternative to conventional metal-based shielding materials,with broad application potential in aerospace,electronics,and related fields.展开更多
Fiber strain sensors with robust sensing performance are indispensable for human-machine interactions in the electronic textiles.However,current fiber strain sensors are confronted with the challenges of unavoidable d...Fiber strain sensors with robust sensing performance are indispensable for human-machine interactions in the electronic textiles.However,current fiber strain sensors are confronted with the challenges of unavoidable deterioration of functional sensing components during wearable and extreme environments,resulting in unsatisfactory stability and durability.Here,we present a robust fiber strain sensor based on the mutual inductance effect.The sensor is assembled by designing coaxial helical coils around an elastic polyurethane fiber.When stretching the fiber sensor,the strain is detected by recording the voltage changes in the helical coils due to the variation in magnetic flux.The resultant fiber strain sensor shows high linearity(with a linear regression coefficient of 0.99)at a large strain of 100%,and can withstand various extreme environmental conditions,such as high/low temperatures(from-30℃to 160℃),and severe deformations,such as twisting and pressing(with a pressure of 500 N/cm).The long-term cyclic stability of our fiber strain sensor(100,000 cycles at a strain of 100%)is superior to that of most reported flexible resistive and capacitive strain sensors.Finally,the mass-produced fiber strain sensors are woven into a smart textile system to accurately capture gestures.展开更多
Smart electronic textiles with electronic functions like displaying can provide transformative opportunities for wearable devices that traditional rigid devices are hard to realize.A general strategy of enabling texti...Smart electronic textiles with electronic functions like displaying can provide transformative opportunities for wearable devices that traditional rigid devices are hard to realize.A general strategy of enabling textiles to display is weaving light-emitting fibers into textiles and designing control circuits.However,it remains challenging for the current electronic textiles to display full-color images and videos.Here,we demonstrate a large-area integrated electronic textile system(with a size of 72 cm×50 cm)by weaving light-emitting diode(LED)fibers,touch-sensing fibers and polyester fibers,which could display full-color images(with a gamut of 117.6%NTSC)and continuous videos(with a refresh rate of 11.7 Hz)by designing low-voltage supply mode and parallelly transmitting circuits.After integration of touch-sensing fibers,such textile system could achieve various touch display and interactive functions like smart phones or computers,including hand input of text,hand painting,computing and playing games.The stability and durability of textile system withstanding 5000 bending cycles was also demonstrated for wearable applications.The integrated electronic textile system shows similar flexibility and breathability with regular textiles,which is promising to serve as new human-machine interface to change the way in which people interact with electronics.展开更多
Artificial synapse devices with co-location memory and logic functions have attracted enormous attention since they are the indispensable components for neuromorphic computing systems[1].Extensive efforts have been ma...Artificial synapse devices with co-location memory and logic functions have attracted enormous attention since they are the indispensable components for neuromorphic computing systems[1].Extensive efforts have been made to mimic neural electric pulse patterns through solid-state devices like two-terminal memristors and three-terminal transistors.展开更多
基金supported by the National Natural Science Foundation of China (NSFC)(T2222005,T2321003,22335003,22175042,52403318)the Ministry of Science and Technology (MOST) of China (2022YFA1203001,2022YFA1203002)the Shanghai Municipal Science and Technology Commission (STCSM)(21511104900)。
文摘Electronic textile represents the future of wearable electronics,offering unparalleled permeability and comfort,and holding immense promise for next-generation sensing,communication and smart functionalities.A critical enabler of these capabilities is the integration of stretchable,stable and customizable circuits.However,achieving high-resolution,seamlessly integrated circuits with robust electrical and mechanical performance directly on textiles remains a formidable challenge.Here,we introduce a novel photopatterning strategy for high-resolution,stretchable textile circuits based on surface-modified liquid metal nanoparticles.Our approach uniquely leverages coordination bonding between photopolymerizable monomers and the native oxide layer of liquid metal,enabling the nanoparticles to actively participate in photopolymerization.The process forms a crosslinked polymer network that not only allows for precise microscale patterning but also significantly enhances the electromechanical stability of the circuits.The resulting textile circuits exhibit a resolution of 100 μm,stretchability of up to 200%with minimal resistance change(ΔR < 0.1),and durability against repeated mechanical deformations including stretching,bending,and twisting.Moreover,they demonstrate environmental robustness,maintaining stable performance across varying humidity and temperatures,and even enduring practical scenarios such as washing,pressing,wrinkling and ironing.With this integrated strategy,a stretchable textile sensing system is developed as a breathable healthcare wristband for prolonged and irritation-free healthcare monitoring.By combining chemical design with photopatterning precision,this work establishes a versatile and scalable platform for the fabrication of advanced textile electronics.
基金supported by the National Natural Science Foundation of China(T2222005,22175042,T2321003,22335003,52403156)the Ministry of Science and Technology of the People's Republic of China(2022YFA1203001,2022YFA1203002)the Science and Technology Commission of Shanghai Municipality(21511104900,24ZR1406700)。
文摘Electromagnetic interference(EMI)shielding materials play a crucial role in safeguarding electronic devices from external interference,ensuring their stable operation.Despite their effectiveness,traditional metallic EMI shielding materials face significant limits,such as high weight density,rigidity,and limited adaptability to complex circuitry.In this study,a lightweight,flexible carbon nanotube(CNT)fabric with superior EMI shielding performance was developed through the scalable preparation of CNT fibers and knitting of CNT yarns.The CNT fibers demonstrated excellent specific tensile strength(25.3 cN/dtex)and high electrical conductivity(3634.2±114.0 S/cm).The resulting CNT fabric achieved an EMI shielding effectiveness of 66.8 dB for a single layer and 111 dB for multiple layers while maintaining an ultralow density of 0.2 g/cm^(3).Additionally,the CNT fabric was durable to withstand repeated bending and washing.When applied as the EMI shielding layer in coaxial cables,the CNT fabric delivered comparable signal transmission performance to that of copper while reducing the mass of the shielding layer by 32.1%.These comprehensive properties position CNT fabric as a promising alternative to conventional metal-based shielding materials,with broad application potential in aerospace,electronics,and related fields.
基金supported by the Minstry of Science and Technology(2022YFA1203001,2022YFA1203002 and 2023YFC2410900)the National Natural Science Foundation of China(T2321003,22335003,T2222005 and 22175042)Science&Technology Commission of Shanghai Municipality(21511104900,20JC1414902 and 23490713500).
基金financially by Ministry of Science and Technology of the People's Republic of China(2022YFA1203001,2022YFA1203002)National Natural Science Foundation of China(T2321003,22335003,T2222005,22175042)Science and Technology Commission of Shanghai Municipality(21511104900).
文摘Fiber strain sensors with robust sensing performance are indispensable for human-machine interactions in the electronic textiles.However,current fiber strain sensors are confronted with the challenges of unavoidable deterioration of functional sensing components during wearable and extreme environments,resulting in unsatisfactory stability and durability.Here,we present a robust fiber strain sensor based on the mutual inductance effect.The sensor is assembled by designing coaxial helical coils around an elastic polyurethane fiber.When stretching the fiber sensor,the strain is detected by recording the voltage changes in the helical coils due to the variation in magnetic flux.The resultant fiber strain sensor shows high linearity(with a linear regression coefficient of 0.99)at a large strain of 100%,and can withstand various extreme environmental conditions,such as high/low temperatures(from-30℃to 160℃),and severe deformations,such as twisting and pressing(with a pressure of 500 N/cm).The long-term cyclic stability of our fiber strain sensor(100,000 cycles at a strain of 100%)is superior to that of most reported flexible resistive and capacitive strain sensors.Finally,the mass-produced fiber strain sensors are woven into a smart textile system to accurately capture gestures.
基金supported by the Ministry of Science and Technology of the People's Republic of China(MOST)(2022YFA1203001,2022YFA1203002)National Natural Science Foundation of China(NSFC)(T2321003,22335003,T2222005,22175042)Science and Technology Commission of Shanghai Municipality(STCSM)(21511104900)。
文摘Smart electronic textiles with electronic functions like displaying can provide transformative opportunities for wearable devices that traditional rigid devices are hard to realize.A general strategy of enabling textiles to display is weaving light-emitting fibers into textiles and designing control circuits.However,it remains challenging for the current electronic textiles to display full-color images and videos.Here,we demonstrate a large-area integrated electronic textile system(with a size of 72 cm×50 cm)by weaving light-emitting diode(LED)fibers,touch-sensing fibers and polyester fibers,which could display full-color images(with a gamut of 117.6%NTSC)and continuous videos(with a refresh rate of 11.7 Hz)by designing low-voltage supply mode and parallelly transmitting circuits.After integration of touch-sensing fibers,such textile system could achieve various touch display and interactive functions like smart phones or computers,including hand input of text,hand painting,computing and playing games.The stability and durability of textile system withstanding 5000 bending cycles was also demonstrated for wearable applications.The integrated electronic textile system shows similar flexibility and breathability with regular textiles,which is promising to serve as new human-machine interface to change the way in which people interact with electronics.
文摘Artificial synapse devices with co-location memory and logic functions have attracted enormous attention since they are the indispensable components for neuromorphic computing systems[1].Extensive efforts have been made to mimic neural electric pulse patterns through solid-state devices like two-terminal memristors and three-terminal transistors.
