research The failure behavior of the anchorage of hairs during slow extraction
Growing hairs are easier to pull out than resting hairs due to different anchorage strengths.
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research Direct Observation of Hair Components Involved in Formation of Permanent Waves
Microfibrils are key for permanent waves, and hydrolyzed keratin improves wave formation and hair condition.
research Keratins: the hair shaft's backbone revealed
Keratins are crucial for hair strength, and mutations in certain keratin genes cause hair disorders.
research Observation of different HHK groups with SEM
Different human hair keratin types have unique structures that affect how they dissolve and can be used to create self-tendons.
research Insights on the mechanical behavior of keratin fibrils
Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
research Internal structure changes in bleached black human hair resulting from chemical treatments: A Raman spectroscopic investigation
Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.
research The effect of treatments on the shear modulus of human hair measured by the single fiber torsion pendulum.
Different treatments change the strength and flexibility of human hair.
research Molecular elements of the regulatory control of keratin filament modulator AHF/trichohyalin in the hair follicle
The study concluded that a protein important for hair strength is regulated by certain molecular processes and is affected by growth phases.
research Effect of oil application, age, diet, and pigmentation on the tensile strength and breaking point of hair
Children's hair is more elastic, but tensile strength is similar across different factors.
research Strain and Strain Recovery of Human Hair from the Nano- to the Macroscale
Human hair can almost fully recover its structure within about 1,000 minutes after being stretched.
research Pulling force deforms hair follicle root sheath nuclei and surrounding dermal collagen matrix differently at infundibulum, isthmus and suprabulbar regions
Hair follicles respond differently to pulling forces in various regions.
research Let’s not split hairs
A new method strengthens hair without using harmful chemicals.
research Targeted keratin repair: A plant‐based approach to hair strength and surface restoration
A plant-based treatment from Avena strigosa seeds effectively repairs and strengthens damaged hair.
research Age-associated thin hair displays molecular, structural and mechanical characteristic changes
Older thin hair is not just thinner but also has different shape, structure, and stiffness.
research In vivo formation steps of the hard α-keratin intermediate filament along a hair follicle: Evidence for structural polymorphism
Hair follicles form hard α-keratin filaments in four steps, showing structural differences.
research NEWER FINDINGS ON THE ENZYMES AND PROTEINS OF HAIR FOLLICLES
research Some electron microscope observations on hardening in the human hair follicle
The hair follicle structure is more complex than thought, with new findings on protein formation.
research Effect of ethnicity and treatments on in situ tensile response and morphological changes of human hair characterized by atomic force microscopy
Different ethnicities and treatments affect human hair strength and structure.
research Human hair keratin-associated proteins: Sequence regularities and structural implications
Keratin-associated proteins help link filaments and affect keratin's strength.
research TENSILE STRENGTH OF SCALP HAIR IN WOMEN WITH HAIR LOSS
Women with hair loss have weaker hair that breaks more easily.
research Role of human type II hair keratins in intermediate filament bundling in vitro
research Analysis of structural change in keratin fibers resulting from chemical treatments using Raman spectroscopy
Chemical hair straightening changes hair proteins and mostly fixes broken bonds.
research In Vitro Assembly and Structure of Trichocyte Keratin Intermediate Filaments
Scientists successfully created mouse hair proteins in the lab, which are stable and similar to natural hair.
research Changes in the mechanical properties of human hair under various conditions
Hair coloring and chlorine change hair strength differently.
research Isolation of intermediate filament assemblies from human hair follicles.
Researchers isolated and identified structural components of human hair follicles, providing a model for studying hair formation.
research Human hair keratin responds to oxidative stress via reactive sulfur and supersulfides
Human hair strength and health are linked to sulfur compounds that can be reduced by stress but improved with sulfur supplements.
research The in vitro Assembly of Hair Follicle Keratins: Comparison of Cortex and Companion Layer Keratins
Different conditions affect how hair proteins assemble, and certain mutations can change their structure.
research Preparation of human hair keratin/calcium alginate blend films
More human hair protein makes the films weaker and less clear.
research X-rays studies of the structure of hair, wool, and related fibres. II. - The molecular structure and elastic properties of hair keratin
Stretched hair has a similar structure to natural silk, showing hair's elasticity involves reversible changes within its molecules.
research Effect of Disulfide Bonds in Human Hair Fibers on the Melting Behavior of Their Crystalline Structure
Changing disulfide bonds in human hair affects its melting behavior and thermal stability.