Fabric Organic Electrochemical Transistors for Biosensors. Issue 23 (30th April 2018) - Yang, Anneng
Abstract: Flexible fabric biosensors can find promising applications in wearable electronics. However, high‐performance fabric biosensors have been rarely reported due to many special requirements in device fabrication. Here, the preparation of organic electrochemical transistors (OECTs) on Nylon fibers is reported. By introducing metal/conductive polymer multilayer electrodes on the fibers, the OECTs show very stable performance during bending tests. The devices with functionalized gates are successfully used as various biosensors with high sensitivity and selectivity. The fiber‐based OECTs are woven together with cotton yarns successfully by using a conventional weaving machine, resulting in flexible and stretchable fabric biosensors with high performance. The fabric sensors show much more stable signals in the analysis of moving aqueous solutions than planar devices due to a capillary effect in fabrics. The fabric devices are integrated in a diaper and remotely operated by using a mobile phone, offering a unique platform for convenient wearable healthcare monitoring. Abstract : Fabric organic electrochemical transistors are prepared by weaving fiber‐based devices with cotton yarns. The flexible and stretchable transistors are used as biosensors and show high sensitivity and selectivity to various analytes. The fabric sensors can be remotely operated using a mobile phone, making it a versatile sensing platform that can be conveniently integrated into wearable electronics for healthcare monitoring.