Treating hair with 1M sodium hydroxide increases its friction, making it better for small medical knots.
5 citations
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September 2017 in “Colloids and surfaces. B, Biointerfaces” Tying a knot can measure hair friction, useful for medical applications.
97 citations
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January 2005 in “Wear” Human hair and skin friction vary by ethnicity, hair type, and environmental conditions.
43 citations
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September 2001 in “Scanning” Hair treatments like bleaching increase friction by exposing tiny pores on the hair surface.
99 citations
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July 2005 in “Ultramicroscopy” The research improved understanding of hair and skin properties across different ethnicities and conditions.