A Non-printed Polyaniline-based Integrated Circuit Textile for Simultaneously Sweat Acid-base Monitoring and Early Warning Judgment

The mass production of multifunctional integrated fiber electrodes is the foundation for achieving largescale wearable applications of fiber or fabric-based electronic devices. Based on the flexible, functional and molecular structure adjustable characteristics of polymer semiconductor materials, a method for segmental in situ synthesis of polyaniline functional layers on long fiber surfaces has been put forward in this work. And then, coated with conductive carbon materials, this allows for the successful continuous preparation of segmental multifunctional integrated fiber electrodes. By modifying the fiber substrate with oxidative treatment, the affinity of the fiber substrate to the aniline substrate can be enhanced, which overcomes the problem of polymer functional layer boundary diffusion caused by capillary wetting or detachment. On this basis, according to a kind of novel textile-based circuit design, a textile-structured integrated circuit module has been developed, which can simultaneously realize continuous monitoring of human sweat pH value, health status judgment, and early warning. Co-woven with the fiber-structured Zn/MnO2 batteries, as well as integrated with mini wireless chips, light-emitting diodes, etc., this integrated circuit textile enables consecutive human body wireless monitoring and timely emergency warning for abnormal situations, demonstrating its potential application in future wearable AI hardware.