What question did this study set out to answer?

The aim is to understand the mechanical response of hair cuticle under uniaxial stress using molecular analysis.

A Raman spectroscopy investigation of the resilience of hair cuticular scales under uniaxial stress

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An investigation reveals how hair cuticle mechanics respond to stress in humans, indicating important structural roles.

The aim is to understand the mechanical response of hair cuticle under uniaxial stress using molecular analysis.
Human hair subjected to uniaxial strain up to 32%
Morphological deformation correlated with Raman spectroscopy data
Monitoring of cuticular scale spacing during strain
1:1 correlation between cuticular strain and applied elongation in 3-26% range
Raman spectroscopy revealed conformational changes in disulfide crosslinks
Slight reduction in hydrogen-bond strength, no transitions from α-helix to β-sheet
Cuticular mechanics supported by keratin-associated proteins and dense crosslinking

Paschou et al. (2026) studied this question.

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