Research progress in hydrogels for high-sensitivity strain sensors
This review provided a comprehensive overview in four types of strain sensors,including piezoelectric,resis-tive,triboelectric,and capacitive strain sensors,and their sensing mechanisms were summarized.The essential methods for improving the sensitivity of hydrogel strain sensors were discussed,which involved the selection of suitable materials such as conductive nanoparticles and ionic materials and the adoption of specific structural designs such as microspheres,sawtooth-like patterns,and porous structures.A comprehensive integration of these factors was also involved.These strategies enable the hydrogel strain sensors to obtain a high sensitivity.Furthermore,the application of hydrogel strain sensors in the fields of smart electronics,wearable devices,and medical health were introduced.Finally,the current challenges and the prospect of future opportunities in the development and applications of hydrogel strain sensors were dis-cussed.
万方数据
维普
