Highly Precise, Continuous, Long‐term Monitoring of Skin Electrical Resistance by Nanomesh Electrodes

The transepidermal water loss has been widely used as a method for directly evaluating the barrier function of the stratum corneum of the skin. However, transepidermal water loss could not be measured continuously for a long period of time, and there were no reports of continuous monitoring of skin barrier functions. Here, we report a method to continuously monitor the skin electrical resistance by nanomesh electrodes for a long period of time while maintaining the natural skin condition that does not inhibit water evaporation. Simultaneous measurements of the skin electrical resistance by nanomesh electrodes and transepidermal water loss exhibited a linear fit with a high negative correlation. Furthermore, dynamics of skin physiological functions have been successfully visualized by monitoring of the skin electrical resistance by nanomesh electrodes for 30 h in daily life. This article is protected by copyright. All rights reserved