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含水量、化学处理及温度对角质层流变特性的影响。

The influence of water content, chemical treatment and temperature on the rheological properties of stratum corneum.

作者信息

Van Duzee B F

出版信息

J Invest Dermatol. 1978 Aug;71(2):140-4. doi: 10.1111/1523-1747.ep12546836.

DOI:10.1111/1523-1747.ep12546836
PMID:681782
Abstract

The elastic modulus is determined as a function of water content for untreated stratum corneum, and stratum corneum treated with urea and LiBr. The modulus is also determined for stratum corneum at temperatures from 2 degrees C to 45 degrees C and on samples with the water solubles extracted. The modulus is independent of temperature, but may be modified by binding of small molecules to the protein in stratum corneum. The modulus is found to be a function of water content, not water activity.

摘要

测定了未处理角质层、用尿素和溴化锂处理的角质层的弹性模量与含水量的函数关系。还测定了在2℃至45℃温度下以及水溶性物质被萃取的样品的角质层的弹性模量。弹性模量与温度无关，但可能会因小分子与角质层中蛋白质的结合而改变。研究发现弹性模量是含水量的函数，而非水活性的函数。

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