Abstract
Flexible pressure sensors are lightweight and highly sensitive,making them suitable for use in small portable devices to achieve precise measurements of tiny forces.This article introduces a low-cost and easy-fabrication strategy for piezoresistive flexible pressure sensors.By embedding silver nanowires into a polydimethylsiloxane layer with micro-pyramids on its surface,a flexible pressure sensor is created that can detect low pressure(17.3 Pa)with fast response(＜20 ms)and high sensitivity(69.6 mA kPa-1).Furthermore,the pressure sensor exhibits a sensitive and stable response to a small amount of water flowing on its surface.On this basis,the flexible pressure sensor is innovatively combined with a micro-rotor to fabricate a novel urinary flow-rate meter(uroflowmeter),and results from a simulated human urination experiment show that the uroflowmeter accurately captured all the essential shape characteristics that were present in the pump-simulated urination curves.Looking ahead,this research provides a new reference for using flexible pressure sensors in urinary flow-rate monitoring.
基金项目
National Natural Science Foundation of China(82270819)
Project of Integrative Chinese and Western Medicine(ZXXT-202206)
National Key Research and Development Program of China(2023YFC3606001)
Basic Science Research Project of Renji Hospital(RJTI22-MS-015)
国家科技期刊平台
NSTL
万方数据