Intelligent Temperature and Pressure Sensing Decoupling Systems in Multimodal Nanonetwork-based Electronic Textiles.

Abstract

Human skin decouples concurrent thermal and mechanical stimuli, yet multimodal electronic textiles commonly suffer from signal crosstalk when temperature and pressure are read through a single channel. Here, we report a skin-inspired electronic textile built from a laminated nanoarchitecture assembled on knitted polyester by integrating silver nanowires (AgNWs) with MXene nanosheets and a protective polydimethylsiloxane (PDMS) overlayer. The resulting e-textile forms a mechanically compliant, percolated AgNWs/MXene nanonetwork that combines high breathability (469 mm·s^-1), durability (>4000 cycles), and biocompatibility, while enabling strain, pressure, and temperature sensing in one platform. To resolve temperature-pressure crosstalk, a universal decoupling framework is established with two complementary routes: (i) neural-network-assisted qualitative discrimination of resistance signatures (accuracy >98.7%) and (ii) quantitative decoupling by leveraging a pressure-independent thermoelectric descriptor (Seebeck coefficient) together with the temperature coefficient of resistance to separate temperature-induced and pressure-induced resistance components. The decoupling approach could be applied to a variety of different sensors and is validated through gesture recognition and information transmission, making it a promising candidate for applications in healthcare monitoring, human-machine interfaces, and wearable electronics.