fig5

Figure 5. Flexible EGaIn-AgNPs electrodes for human electrical signal monitoring. (A) Three-electrode connection positions for ECG monitoring; (B) Comparison of the weight of EGaIn-AgNPs electrode and commercial Ag/AgCl electrode; (C) Comparison of ECG monitoring effects of EGaIn-AgNPs electrodes and commercial Ag/AgCl; (D) Comparison of single ECG signal test results; (E) ECG monitoring signals of volunteers wearing EGaIn-AgNPs electrodes at rest, warm-up and exercise; (F) Schematic diagram of three-electrode EMG test; (G) Connection positions of EGaIn-AgNPs grid electrodes for testing EMG signals under different grip forces; (H) EMG signal test under different grip forces (5~25 kg); (I) Collection of EMG signals generated by different gestures (numbers 1 to 9); (J) Potential amplitudes of different gestures. ECG: Electrocardiogram; EMG: electromyogram; EGaIn-AgNPs: eutectic gallium indium-silver nanoparticles.