期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 306, 期 1, 页码 34-40出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2006.10.030
关键词
atomic force microscopy; wetting; surface tension; hair surface; surface potential
The electrostatic properties and the wetting behaviour of the human hair surface at the nanometric scale have been investigated by using atomic force microscopy (AFM). Surface potential imaging was used to determine the electrostatic properties while non-contact mode AFM was used to investigate the wetting properties of a test liquid, squalane. We have studied natural hair and hair in which different covalently (18-methyleicosanoic acid) and non-covalently bound fatty acids present at the cuticle surface were selectively extracted. This study shows how the removal of these acids causes various profound changes in hair wettability at the cuticle scale. (c) 2006 Elsevier Inc. All rights reserved.
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