Bioinspired fibrous electronic sensor for pressure and temperature monitoring with passive thermal regulation

A fibrous electronic textile couples passive thermal management with multimodal physiological sensing. • Radiative cooling suppresses solar heat accumulation under outdoor conditions. • Decoupled pressure and temperature sensing enables reliable dual-parameter perception. • Hydrophobic fibrous surfaces provide self-cleaning capability against dust contamination. • The MPS enables simultaneous monitoring of pulse, respiration, skin temperature, and distress signals. In response to the impact of heat accumulation on the sensing reliability and wearing comfort of wearable sensors in hot outdoor environments, this study was inspired by the surface microstructure and multisensory perception characteristics of the tropical white beetle Cyphochilus . By integrating electrospinning and screen printing techniques, we developed a fiber-based multifunctional piezoresistive sensor (MPS) combining passive daytime radiative cooling, hydrophobic protection (WCA = 135.0 ± 0.4°), and pressure/temperature monitoring. The separated pressure and temperature sensing units enable signal decoupling, achieving sensitivities of 7.51 kPa −1 and − 1.3% °C −1 , respectively, for stable and simultaneous monitoring of carotid pulse, respiratory activity, and skin temperature. Meanwhile, the polylactic acid/calcined kaolin top layer provides passive thermal regulation, exhibiting a solar reflectance of 85.4% and a broadband infrared emissivity of 91.8%, achieving an approximately 4.0 °C reduction in surface temperature compared with ordinary white cotton fabric under outdoor sunlight exposure. This work provides a feasible strategy for integrating thermal management and multiparameter sensing in wearable electronics for complex environments. Download: Download high-res image (286KB) Download: Download full-size image