High-Performance Wearable Strain Sensor Based on MXene@Cotton Fabric with Network Structure

Abstract

Flexible and comfortable wearable electronics are as a second skin for humans as they can collect the physiology of humans and show great application in health and fitness monitoring. MXene Ti3C2Tx have been used in flexible electronic devices for their unique properties such as high conductivity, excellent mechanical performance, flexibility, and good hydrophilicity, but less research has focused on MXene-based cotton fabric strain sensors. In this work, a high-performance wearable strain sensor composed of two-dimensional (2D) MXene d-Ti3C2Tx nanomaterials and cotton fabric is reported. Cotton fabrics were selected as substrate as they are comfortable textiles. As the active material in the sensor, MXene d-Ti3C2Tx exhibited an excellent conductivity and hydrophilicity and adhered well to the fabric fibers by electrostatic adsorption. The gauge factor of the MXene@cotton fabric strain sensor reached up to 4.11 within the strain range of 15%. Meanwhile, the sensor possessed high durability (>500 cycles) and a low strain detection limit of 0.3%. Finally, the encapsulated strain sensor was used to detect subtle or large body movements and exhibited a rapid response. This study shows that the MXene@cotton fabric strain sensor reported here have great potential for use in flexible, comfortable, and wearable devices for health monitoring and motion detection.

Telemedicine platform for health assessment remotely by an integrated nanoarchitectonics FePS3/rGO and Ti3C2-based wearable device

“…It was found that the FePS 3 @rGO strain sensor resistance increased linearly with a corresponding gauge factor of 38.7 (R 2 = 0.96) at 40% strain. The obtained gauge factor value was superior to that previously reported for some of the 2D materials and carboncoated textile strain sensors [43][44][45][46] . The repeatability of the FePS 3 @rGO strain sensor was then examined using step and hold strain cycles, and the results are displayed in Supplementary Fig.…”

MXene/TMD Nanohybrid for the Development of Smart Electronic Textiles Based on Physical Electromechanical Sensors

“…fabricated a wearable high‐performance Ti 3 C 2 T x based strain sensor using the dip‐coating method and obtained a gauge factor of 4.11 at 3–15% of applied strain. [ 61 ] Uzun et al. fabricated highly conductive MXene coated cellulose yarns and utilized them as a strain sensor which displayed a gauge factor of 6.02% up to 20% of applied strain.…”

From structural ceramics to 2D materials with multi-applications: A review on the development from MAX phases to MXenes

“…As a rechargeable secondary battery, LIBs have achieved great commercial success and are widely used in portable electronic products, electric vehicles, and the defense industry, etc., for their advantages of high operating voltage, high energy density, long cycle life, and environmental friendliness [175,230]. However, shortage of lithium resources can be a future problem.…”