Fig. 4: Multimodal measurement of biosignals with 2D ITO electrodes.
From: Kinetic liquid metal synthesis of flexible 2D conductive oxides for multimodal wearable sensing
a ECG signals are recorded with a 2D ITO electrode; the left inset shows a representative peak showing the PQRST parts of the peak, right inset shows the single lead ECG setup at the fingertips. b Pearson correlation between heart rate measurements with 2D ITO and gel electrodes for two different physiological conditions. c EMG signal for two kinds of hand gestures are captured with 2D ITO electrodes; the inset schematic shows the ventral placements of the electrodes on the forearm. d Transmittance vs. wavelength for 1 layer of ITO on PI printed with 7 at. % Sn at 260 °C (baselined with the transmission of the bare PI substrate). e A schematic of the placement of the transparent ITO on the wrist area underneath the PPG. f Simultaneous measurements of PPG and ECG.
