Fig. 5
From: Multiscale nanowire-microfluidic hybrid strain sensors with high sensitivity and stretchability
a Illustration of the human activity and the approximate range of strain scales. b Relative resistance responses of the NMH strain sensor for detecting the bending state of a skeleton knee model (black), and the tensile strength of the NMH strain sensor under different deformations (red). c–g Detection of small-scale human body deformations by the NMH strain sensor: c Relative change in the resistance of the sensor monitoring the pulse on a human wrist. (d) A typical pulse waveform is shown on the right. e Eye blinking, f cheek movement, and g frown
