Electrospinning Superhydrophobic Flexible Wearable Sensor of CPU@MXene@SiO2 with High Sensing Sensitivity

sensor exhibited outstanding comprehensive properties including high mechanical strength, superhydrophobicity (CA > 155°, RA < 3°), low adhesion force (33 μN) with water, high sensing sensitivity (gauge factor up to 4922.6), and fast response (response time of 94 ms). Moreover, to validate its potential for large-scale applications, a complete data acquisition system based on an STM32 microcontroller and a mobile application was designed and developed. A 4 × 4 sensor array was successfully fabricated and tested. This sensor demonstrates promising and attractive applications in wearable devices and human-machine interaction, offering an efficient design strategy for constructing robust and highly sensitive flexible sensors.