Abstract
Wearable pressure sensors made from conductive hydrogels hold significant potential in health monitoring.However,limited pressure range(Pa to hundreds of kPa)and inadequate antibacterial properties restrict their practical applications in diagnostic and health evaluation.Herein,a wearable high-performance pressure sensor was assembled using a facilely prepared porous chitosan-based hydrogel,which was constructed from commercial phenolphthalein particles as a sacrificial template.The relationship between the porosity of hydrogels and sensing performance of sensors was systematically explored.Herein,the wearable pressure sensor,featuring an optimized porosity of hydrogels,exhibits an ultrawide sensing capacity from 4.83 Pa to 250 kPa(range-to-limit ratio of 51,760)and high sensitivity throughout high pressure ranges(0.7 kPa 1,120-250 kPa).The presence of chitosan endows these hydrogels with outstanding antibacterial performance against E.coli and S.aureus,making them ideal candidates for use in wearable electronics.These features allow for a practical approach to monitor full-range human motion using a single device with a simple structure.
基金项目
National Natural Science Foundation of China(62101605)
Zhuhai Fundamental and Application Research(2220004002896)
Guangdong Introducing Innovative and Entrepreneurial Teams Program(2019ZT08Z656)
Shenzhen Science and Technology Program(KQTD20190929-172522248)
Center for Micro and Nanoscale Research and Fabrication,University of Science and Technology of China()
维普
万方数据