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Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.

Hair follicles in androgenetic alopecia show no chemical changes, only size reduction.

The technique showed that human hair has two main parts, with 68% being rigid and the rest flexible, and water swelling affects its structure.

Permanent waving damages hair by disrupting its keratin structure.

A new method was developed to accurately detect and measure 47 different drug ingredients in various products.

The conclusion is that a new method to measure hair shine was confirmed to match people's visual assessments.

The research found that twisting hair fibers can show changes in stiffness and damage, and help tell apart different hair treatments.

Bleaching hair doesn't affect the accuracy of dye identification using SERS.

X-ray diffraction of hair might help detect breast cancer non-invasively.

DVI provides detailed 3D imaging of hair and shows how various products protect and enhance hair.

Water makes hair more flexible, especially the outer layer.

TOF-SIMS improved chemical mapping in cells, confirming gunshot residue, tracking anti-tumor drugs, and identifying molecules in mosquitoes and wounds.

Forensic hair analysis for drugs is now more reliable and accurate.

Researchers developed a method to identify and measure different animal hair fibers in textiles, successfully distinguishing materials like cashmere from cheaper fibers.

Chemical dyes damage hair's internal structure more than perming, as shown by a special imaging technique.

Neurospectrum effectively analyzes neural signals to predict and identify brain activity patterns better than traditional methods.

OCT can effectively examine and reveal details about human hair and scalp conditions.

The study improved understanding of keratin fiber structure by showing consistent microfibril diameter but varying distances and electron density profiles.

A new laser-based microscope can clearly image biological structures without labels.

Yak hair stretches mainly due to macromolecules slipping past each other.

Hair tissue can help monitor environmental and public health risks.

Human hair keratin has a 40% α-helix structure that changes to a random coil in 8 M urea.

Harp seals have different innervation patterns in their whiskers, with lateral whiskers having more axons than medial ones.

Different treatments change the strength and flexibility of human hair.

A new method quickly detects alcohol use from hair in under an hour.

Breast cancer alters specific molecular structures in hair, which revert after cancer removal.

Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.