fig7
Figure 7. Soft ECG Electrode Interfaces: (A) Highly stretchable and conductive gecko-inspired dry ECG electrode. Reprinted (adapted) with permission from Taehoon Kim et al.[103]. Copyright 2016 American Chemical Society. (B) Washable textile-based ECG electrode interface (top) and SEM images of the washable PEDOT:PSS electrodes coated by S1 and S2 solutions (bottom) (a) S1 sample before washing; (b) S1 sample after 50 washes; (c) S2 sample before washing; (d) S2 sample after 50 washes[104].