Abstract
The skin surface pH is hydrogen ion concentration which is consisting of sweat, sebum, and CO_2 from body dissolved in skin surface. The final aim of this study is to develop a skin function measurement system for portable use. We have developed the Dry-pH-Sensor that consists of a platinum wire electrode and Ag/AgCl wire electrode, and also developed the measurement system which can measure chronological skin pH continuously. We measured four healthy subjects using a glass electrode and Dry-pH-Sensor. As the result, Dry-pH-Sensor could measure the difference of skin pH as an electric potential between tow electrodes.
