20 citations
,
July 2010 in “Skin Research and Technology” This study found that aging in Korean individuals is associated with changes in hair diameter and surface structure, as observed through atomic force microscopy.
81 citations
,
December 2007 in “Acta materialia” This study conducted in situ tensile loading experiments with atomic force microscopy to observe how conditioning treatments affect the tensile response of virgin, chemically damaged, and mechanically damaged Caucasian hair.
85 citations
,
October 2007 in “International Journal of Dermatology” In this study, researchers found that the curliness of human hair is associated with an asymmetric structure at the cellular level, particularly in the differentiation of the precortex.
33 citations
,
July 2007 in “Skin research and technology” The study found that the break force of human hair significantly depends on hair diameter and strain, but not on age, gender, use of hair dye, or drugs.
97 citations
,
January 2005 in “Wear” In this study, the researchers measured and discussed the friction and wear properties of various hair types against synthetic skin and other hair, finding variations based on factors like ethnicity, hair condition, and environmental conditions.
50 citations
,
February 2004 in “Journal of Investigative Dermatology”
10 citations
,
January 2002 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” This study found that the cuticle layer of hair contributes approximately 60% to bending stress, highlighting its significant role in the mechanical properties of hair stiffness.
5 citations
,
March 2001 in “Journal of biomechanics” This study found that anagen hairs require less force to be extracted than telogen hairs in an in vitro pig skin model, indicating different anchorage mechanisms.