Capacitive epidermal electronics for electrically safe, long-term electrophysiological measurements

Abstract

Integration of capacitive sensing capabilities to epidermal electronic systems (EES) can enhance the robustness in operation for electrophysiological signal measurement. Capacitive EES designs are reusable, electrically safe, and minimally sensitive to motion artifacts. Experiments on human subjects illustrate levels of fidelity in ECG, EMG, and EOG recordings comparable to those of standard gel electrodes and of direct contact EES electrodes.

Keywords: capacitive sensing; electrical safety; epidermal electronic systems; motion artifacts; reusability.