Hydrogels have emerged as promising candidates for the next generation of flexible electronics for human-machine interaction,owing to their excellent biocompatibility,safety,and flexibility.In this work,a novel hydrop...Hydrogels have emerged as promising candidates for the next generation of flexible electronics for human-machine interaction,owing to their excellent biocompatibility,safety,and flexibility.In this work,a novel hydrophobic/electrostatic dual-crosslinked hydrogel,polyacrylic acid-divinylbenzeneliquid metal(PAAD-LM)hydrogel,was synthesized for the first time by a facile one-stepγ-radiation method.PAAD-LM hydrogel exhibits remarkable stretchability(elongation at break of 5257±170%,areal strain of>7000%without break),self-healing capability,and excellent responsiveness as flexible touch panel and strain sensor.The hydrogel-based device demonstrates versatile functionalities,including painting,keyboard and mouse control applications,high-sensitivity recording of various human body movement signals,and VR smart gloves.The function of the hydrogel-based device is converted successfully through circuit and program design.With its stretchable and self-healing properties,PAAD-LM hydrogel holds great potential for advanced multifunctional wearable electronic devices.This work also provides novel insights into the synthesis of high-tensile,sensitive and multifunctional hydrogels.展开更多
Flexible touch panels are becoming increasingly vital in the evolution of human-machine interfaces,intelligent robotics,and wearable technology.Conductive hydrogels,with their unique combination of flexibility,transpa...Flexible touch panels are becoming increasingly vital in the evolution of human-machine interfaces,intelligent robotics,and wearable technology.Conductive hydrogels,with their unique combination of flexibility,transparency,and biocompatibility,are emerging as essential components for next-generation flexible touch panels.Various conductive hydrogel systems based on polymers such as polyvinyl alcohol,polyacrylamide,and polyacrylic acid have been developed,enabling diverse device structures like sandwich,array,and woven configurations.This review offers a comprehensive overview of hydrogel-based flexible touch panels,focusing on their distinctive properties,diverse working principles,and wide-ranging applications.It explores the integration of conductive hydrogels in various mechanisms,including capacitive,resistive,and triboelectric touch panels,emphasizing their role in enhancing device functionality.Additionally,the review addresses critical challenges,such as material stability,durability,and sensitivity,while providing insights into potential innovations and future research directions.By covering both current developments and emerging trends,this review aims to advance the understanding and evolution of this rapidly growing field.展开更多
基金support from National Natural Science Foundation of China(No.12375336,11875078).
文摘Hydrogels have emerged as promising candidates for the next generation of flexible electronics for human-machine interaction,owing to their excellent biocompatibility,safety,and flexibility.In this work,a novel hydrophobic/electrostatic dual-crosslinked hydrogel,polyacrylic acid-divinylbenzeneliquid metal(PAAD-LM)hydrogel,was synthesized for the first time by a facile one-stepγ-radiation method.PAAD-LM hydrogel exhibits remarkable stretchability(elongation at break of 5257±170%,areal strain of>7000%without break),self-healing capability,and excellent responsiveness as flexible touch panel and strain sensor.The hydrogel-based device demonstrates versatile functionalities,including painting,keyboard and mouse control applications,high-sensitivity recording of various human body movement signals,and VR smart gloves.The function of the hydrogel-based device is converted successfully through circuit and program design.With its stretchable and self-healing properties,PAAD-LM hydrogel holds great potential for advanced multifunctional wearable electronic devices.This work also provides novel insights into the synthesis of high-tensile,sensitive and multifunctional hydrogels.
基金supported by the National Natural Science Foundation of China(No.62174085)Jiangsu Specially-Appointed Professors Program,the Jiangsu Graduate Research and Practice Innovation Program(No.SJCX22_0363)the Foreign Experts Project of the Ministry of Science and Technology(No.QN20200214001).
文摘Flexible touch panels are becoming increasingly vital in the evolution of human-machine interfaces,intelligent robotics,and wearable technology.Conductive hydrogels,with their unique combination of flexibility,transparency,and biocompatibility,are emerging as essential components for next-generation flexible touch panels.Various conductive hydrogel systems based on polymers such as polyvinyl alcohol,polyacrylamide,and polyacrylic acid have been developed,enabling diverse device structures like sandwich,array,and woven configurations.This review offers a comprehensive overview of hydrogel-based flexible touch panels,focusing on their distinctive properties,diverse working principles,and wide-ranging applications.It explores the integration of conductive hydrogels in various mechanisms,including capacitive,resistive,and triboelectric touch panels,emphasizing their role in enhancing device functionality.Additionally,the review addresses critical challenges,such as material stability,durability,and sensitivity,while providing insights into potential innovations and future research directions.By covering both current developments and emerging trends,this review aims to advance the understanding and evolution of this rapidly growing field.
