Martinsen Ørjan G, Grimnes Sverre, Nilsen Jon K, Tronstad Christian, Jang Wooyoung, Kim Hongsig, Shin Kunsoo, Naderi Majid, Thielmann Frank
Department of Physics, University of Oslo, Blindern, Oslo NO-0316, Norway.
IEEE Trans Biomed Eng. 2008 Feb;55(2 Pt 1):728-32. doi: 10.1109/TBME.2007.912651.
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.
提出了一种用于皮肤水分测量体外校准的新方法。该方法结合了重量法和电学测量，并揭示了测量的电纳与表皮角质层中绝对含水量之间的指数依赖性。结果还表明，水分进入角质层的吸收呈现出三个不同阶段，吸收时间常数存在显著差异。这些阶段可能分别对应结合水、松散结合水和大量水。
