Highly sensitive, breathable, and superhydrophobic dome structure nonwoven-based flexible pressure sensor utilizing machine learning for handwriting recognition.

Wearable devices that incorporate flexible pressure sensors have shown great potential for human-machine interaction, speech recognition, health monitoring, and handwriting recognition. However, achieving high sensitivity, durability, wide detection range, and breathability through cost-effective fabrication remains challenging. Through ultrasound-assisted modification and impregnation-drying, dome-structured nonwovens/rGO/PDMS flexible pressure sensors were developed.