• • The WPU–ChCl hydrogel achieves ~900% stretchability, tensile strength >170 kPa, and toughness >250 kJ/m3, enabling robust mechanical performance for wearable applications that demand durability under repeated deformation.
• • Ionic conductivity reaches 9.2 mS/cm at 600% strain, ensuring stable electrical performance under mechanical stress, critical for reliable signal transduction in dynamic sensing.
• • The sensor exhibits a gauge factor of 7.23 and response/recovery times of ~108/114 ms, providing high sensitivity and rapid response for real-time monitoring of physiological signals.
• • Durability is confirmed by >500 deformation cycles and 20 wash cycles without loss of sensing accuracy, demonstrating practical washability and long-term reliability for smart textiles.