Equilibrium water sorption characteristics of the human nail.

Equilibrium water sorption characteristics of the human nail. Research Abstract Details 

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Equilibrium water sorption characteristics of the human nail. Abstract Text:

The physical and transport properties of keratinized tissues are closely related to their water content. This report presents water uptake and desorption isotherms for the human nail and compares them with those of wool, horn, hair, and stratum corneum. Nail absorbed a maximum of ~0.3 gH2O/g dry tissue, with the shape and magnitude of the isotherm most closely resembling horn. Hysteresis between uptake and desorption was observed, similar to that of other keratins. The shape of the isotherms was adequately described by both the D'Arcy-Watt and Guggenheim-Anderson-deBoer (GAB) models; however, small positive deviations from both models were found in the relative humidity range, 30-60%. Directionally better fits to the data were found with the D'Arcy-Watt model. This analysis suggests that most of the water in the tissue was in a strongly bound state, consistent with observations made by other techniques.

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Equilibrium water sorption characteristics of the human nail. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: International journal of cosmetic science

VOLUME: 29

Page Numbers: 487

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ISSN: 1467-2494

DAY: 20

MONTH: Dec

YEAR: 2007

Equilibrium water sorption characteristics of the human nail. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Equilibrium water sorption characteristics of the human nail.

AFFILIATION: College of Pharmacy, The University of Cincinnati, P.O. Box 67004, Cincinnati, OH 45267-0004, USA.

Country: England

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MEDLINETA: Int J Cosmet Sci

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