TEXTILE-BASED ELECTROCHEMICAL SENSORS USING EMBROIDERED ELECTRODES

Abstract

Textile is an inexpensive, widely available material and offers unique advantages for disposable point-of-care diagnostics and wearable biosensors.Here, we report the first demonstration of a textile-based embroidered electrochemical sensor for analytical measurements.We have developed a simple method to generate conductive polyester threads which are used to fabricate flexible, mechanically robust electrodes on textiles.Proof-of-concept measurements of glucose show that this biosensor exhibits good specificity and linearity from 0 mg/dL to 720 mg/dL, which encompasses the clinically relevant concentration range in humans.Additionally, we demonstrate that this sensor can be easily fabricated in arrays using high-volume manufacturing processes for multiplexed measurements.Lastly, we show that this biosensor exhibits excellent resiliency against mechanical stress and good repeatability, which are important features for textile-based biosensors.