fig8

Figure 8. Application of LM materials in ECG sensors. (A) Contact impedance of NHSE electrodes and commercial gel electrodes to the skin^[203]; (B) Comparison of ECG signals measured by NHSE electrodes and commercial gel electrodes during exercise and washout, respectively^[203]; (C) ECG signals measured using LM-SA-PAA hydrogel electrodes (upper) and commercial electrodes (lower)^[192]; (D) T/R peak ratios and baseline deviations between T and P waves for commercial gel electrodes and LM-SA-PAA hydrogel electrodes^[192]. ECG: Electrocardiographic; LM: liquid metal; NHSE: nano-LM-based high-robust stretchable electrode; PAA: poly(acrylic acid); SA: sodium alginate.