期刊
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
卷 55, 期 2, 页码 728-732出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TBME.2007.912651
关键词
bioelectric phenomena; epidermis; stratum corneum; water
A novel method for in vitro calibration of skin hydration measurements is presented. The method combines gravimetric and electrical measurements and reveals an exponential dependency of measured electrical susceptance to absolute water content in the epidermal stratum corneum. The results also show that absorption of water into the stratum corneum exhibits three different phases with significant differences in absorption time constant. These phases probably correspond to bound, loosely bound, and bulk water.
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