research In-Situ Tensile Testing of Hair Fibers in An Environmental Scanning Electron Microscope (ESEM)
Hair fibers break by cuticle cell slipping, shape changing, cuticle fraying, and surface cracking when stretched under specific conditions.
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480-510 / 1000+ results research Patterns of expression of trichocytic and epithelial cytokeratins in mammalian tissues. I. Human and bovine hair follicles
Human and bovine hair follicles have distinct cytokeratins specific to hair-forming cells.
research Light scattering from human hair fibers
Researchers developed a new model for more realistic computer graphics rendering of hair by considering how light scatters on hair fibers.
research Nanomechanical characterization of human hair using nanoindentation and SEM
Human hair's strength and flexibility vary by ethnicity, damage, and treatment.
research Activation of the Notch pathway in the hair cortex leads to aberrant differentiation of the adjacent hair-shaft layers
Notch pathway activation causes abnormal hair layer development.
research Regulation of Keratin Gene Expression in Hair Follicle Differentiationa
Keratin gene regulation is similar across mammals, affecting hair follicle differentiation.
research Light scattering from human hair fibers
Researchers developed a new model for more realistic computer graphics of hair by considering how light scatters on hair fibers.
research In situ tensile deformation characterization of human hair with atomic force microscopy
AFM helped show how hair changes under tension and the effects of damage and conditioner.
research On Pathways for Small Molecules Into and Out of Human Hair Fibers
Dye enters hair at the edges of cuticle cells and penetrates more from water than alcohol-based solutions.
research Wetting behavior of human hair fibers
Human hair's ability to get wet is complex and can change with treatments, damage, and environment.
research Chronological ageing of human hair keratin fibres
Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.
research Significant damage of the skin and hair following hair bleaching
Hair bleaching causes significant damage to hair and skin.
research Exploring a biological tissue from atomic to macroscopic scale using synchrotron radiation: example of hair.
Hair has unevenly distributed proteins and lipids, with lipids mainly in the cuticle and proteins in the cortex and medulla.
research Photochemical alterations in human hair. I. Artificial irradiation and investigations of hair proteins
Melanin in black hair protects it from sun damage better than light-brown hair.
research The Proteins of Normal and Aberrant Hair Keratins
Hair is mostly made of three protein types: helical, high-sulfur, and high-tyrosine.
research A STUDY OF THE DIFFERENTIATION PRODUCTS OF THE HAIR FOLLICLE CELLS WITH THE ELECTRON MICROSCOPE.
Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.
research Prospective ultramorphological characterization of human hair by optical coherence tomography
OCT can identify hair structures, but chemical treatments can damage them.
research Photoageing of Hair Fiber and Photoprotection
Sunlight damages hair, causing cuticle loss, protein changes, and discoloration.
research Chemical and physical treatments damage Caucasian and Afro‐ethnic hair fibre: analytical and image assays
Chemical and physical treatments like bleaching, dyeing, and UV radiation damage both Caucasian and Afro-ethnic hair.
research Copper and calcium uptake in colored hair
Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.
research Understanding breakage in curly hair
Curly hair breaks due to mechanical damage and environmental factors, not chemical makeup, and needs ongoing care to prevent breakage.
research Hair Mechanical Properties Depending On Age And Origin
Hair properties vary with age and ethnic origin.
research Elucidating penetration pathways into the hair fiber using novel microscopic techniques.
The conclusion is that substances can penetrate hair fibers through multiple pathways, including both the cell membrane complex and the non-keratinous parts.
research Ultrastructural localization of hair keratins, high sulfur keratin-associated proteins and sulfhydryl oxidase in the human hair
Hair proteins change location and structure as hair cells mature.
research Torsional method for evaluating hair damage and performance of hair care ingredients
The torsional method effectively evaluates hair damage and the performance of hair care ingredients.
research Why Mammal Body Hair Is an Evolutionary Enigma
The evolution of mammal body hair remains a mystery.
research Distribution Analysis of Triglyceride Having Repair Effect on Damaged Human Hair by TOF-SIMS
Hydrogenated palm oil repairs and conditions damaged hair by preventing swelling.
research Evidence for calcium soaps in human hair shaft revealed by sub-micrometer X-ray fluorescence
Calcium soaps are present in human hair and can be removed with acid.
research Analysis of DNA in hair fibers.
Small amounts of DNA can be found in the hair shaft, especially near the root, but it decreases with hair treatments and washing.
research Histomorphological and Quantitative Characteristics of Black and Gray Human Scalp Hair
Gray hair has more continuous medullation and a higher medullary diameter than black hair.