DocumentCode :
1038641
Title :
Gravimetric Method for in Vitro Calibration of Skin Hydration Measurements
Author :
Martinsen, Ørjan G. ; Grimnes, Sverre ; Nilsen, Jon K. ; Tronstad, Christian ; Jang, Wooyoung ; Kim, Hongsig ; Shin, Kunsoo ; Naderi, Majid ; Thielmann, Frank
Author_Institution :
Univ. of Oslo, Oslo
Volume :
55
Issue :
2
fYear :
2008
Firstpage :
728
Lastpage :
732
Abstract :
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.
Keywords :
bioelectric phenomena; biomedical measurement; calibration; density measurement; skin; water; absolute water content; electrical measurements; electrical susceptance; epidermal stratum corneum; gravimetry; in vitro calibration; skin hydration measurement; Absorption; Biomedical measurements; Calibration; Clinical diagnosis; Electric variables measurement; Epidermis; Frequency measurement; In vitro; Physics; Skin; Bioelectric phenomena; epidermis; stratum corneum; water; Adult; Body Water; Calibration; Electric Conductivity; Humans; Humidity; Male; Norway; Skin Absorption; Skin Tests; Water;
fLanguage :
English
Journal_Title :
Biomedical Engineering, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9294
Type :
jour
DOI :
10.1109/TBME.2007.912651
Filename :
4432746
Link To Document :
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