Flexible wearable graphene/alginate composite non woven fabric temperature sensor with high sensitivity and anti interference
Abstract The development of a sensitive flexible wearable temperature sensor has extraordinary significance in the field of human vital signs detection. Herein, we demonstrate a flexible temperature sensor (FTS) fitting on human skin based on non woven fabric, and it has been systematically characterized and tested for performance. The resistor type FTS integrated sodium alginate with graphene, behaved as negative temperature coefficient feature and exhibited excellent sensing performance of good sensitivity (TCR 1.5 degC 1 high accuracy of 0.1 degC, short response time (26.3 s) high stability and repeatability at the temperature range of 20.0 45.0 degC. Specially, the FTS eliminated strain and humidity interference, so that can be attached to the human body to detect skin temperature changes continuously and stably. Graphic abstract
Cellulose