Fig. 5: Epidermal electronics applications.
From: Self-compliant ionic skin by leveraging hierarchical hydrogen bond association
a Schematic and photograph of epidermal P(BA-co-MAA)/liquid metal hybrid ionogel electrode. b Strain-dependent resistance changes of the hybrid ionogel electrode. c Skin interfacial impedances of P(BA-co-MAA) ionogel and commercial gel electrodes in air and underwater, respectively. d, e EMG pulses and corresponding FFT spectrogram analyses recorded with P(BA-co-MAA) ionogel and commercial gel electrodes at the relaxation and vibrating states, respectively. f ECG signals recorded with P(BA-co-MAA) ionogel and commercial gel electrodes under various exercise conditions.
