Research / 2020 / Article / Fig 5

Research Article

Highly Stretchable, Elastic, and Sensitive MXene-Based Hydrogel for Flexible Strain and Pressure Sensors

Figure 5

Human motion signal detection. Relative resistance changes of the hydrogel sensors during (a) bending of a knee joint, (b) bending of a finger at a certain angle (45° and 90°), (c) opening and closing the mouth, (d) blinking an eye, (e) swallowing movement, (f) speaking in response to similar sounds of “sensor” and “hello,” (g) different breath detections before and after running, (h) blowing on the surface of the sensor (26°C, RH: 60%), and (i) beating of a human pulse.