Fig. 5: Wearable electronics with MS-P electrodes.
From: Highly conductive polymer with vertical phase separation for enhanced bioelectronic interfaces
a 3D schematic diagram of the flexible resistive array sensor for calculator keyboard. b Optical image of pressing a keypad button on the human arm. c, d Current response upon pressing a“=” keypad button and the pressed symbol was displayed in real-time on an OLED screen, followed by automatically logical operations performed by the system to generate the final outputs. e 3D schematic diagram of the flexible capacitive array sensor for piano keyboard. f Image of a flexible piano keyboard controlled by pressing the MS-P electrode-based capacitive sensor. g, h Capacitive response upon sequentially pressing each keyboard button (from Do to Si) (g) and corresponding time-frequency diagram. The pressing process was displayed on an OLED screen and recorded in the form of a staff at the bottom of the screen (h). i Optical image of the flexible MS-P electrode for ECG/EMG monitoring. j The illustration of flexible MS-P electrodes mounted on the human body for three-lead ECG measurement. k Representative ECG traces from the commercial electrodes (Ag/AgCl) and MS-P electrodes. The right-side enlarged graph displayed the data of a single heartbeat. l The illustration of the flexible electrodes mounted on a human arm for EMG monitoring by clenching fists and bending arm movements. m, n EMG signals measured by the commercial electrodes and MS-P electrodes under clenching fists (m) and bending arm movements (n).
