fig7

Figure 7. LIG-based biophysical skin electronics for electrophysiological monitoring. (A) Optical image of an ultrathin conformal LIG-based EMG sensor; (B) EMG recording results at different time points. Reproduced with permission^[34]. Copyright 2020, American Chemical Society; (C) Schematic of adhesive LIG electrodes for ECG recording; (D) Comparison of SNR of ECGs captured by different type electrodes. Reproduced with permission^[59]. Copyright 2021, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim; (E) Optical photograph of gas-permeable skin electronics containing electrophysiological, hydration, and temperature sensors; (F) Schematic for mounting the devices in the different positions to record various electrophysiological activities; (G) Enlarged ECG signals illustrate clear features. Reproduced with permission^[83]. Copyright 2018, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. LIG: Laser-induced-graphene; EMG: electromyography; ECG: electrocardiography; SNR: signal-to-noise ratio.