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.
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30-60 / 295 resultsresearch Structural Investigation on Damaged Hair Keratin Treated with α,β-Unsaturated Michael Acceptors Used as Repairing Agents
Treatments improved hair surface and scale structure but didn't increase certain bonds in the hair cortex.
research The Cell Membrane Complex: Three Related but Different Cellular Cohesion Components of Mammalian Hair Fibers
The cell membrane complex in mammalian hair has three distinct types with different structures and chemical properties.
research Protection and Restoration of Damaged Hair via a Polyphenol Complex by Promoting Mechanical Strength, Antistatic, and Ultraviolet Protection Properties
A new hair treatment using a natural polyphenol complex improves hair strength, reduces static, and protects against UV damage.
research Qualitative Investigation of Fresh Human Scalp Hair with Full-Field Optical Coherence Tomography
Melanin density affects hair color, and this method can help in cosmetic assessments and diagnosing hair diseases.
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 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 Structure of Intermediate Filament Assembly in Hair Deduced from Hydration Studies Using Small-Angle Neutron Scattering
Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.
research Physical Properties of Human Hair: Evaluation of Bending Stress by Measuring the Major and Minor Axis of Human Hair
The cuticle significantly contributes to hair stiffness, making up about 60% of the total bending stress.
research A Highly Resistant Structure Between Cuticle and Cortex of Human Hair
A tough membrane between the outer and inner layers of human hair protects it from damage.
research Nanomechanical Characterization of Human Hair Using Nanoindentation and SEM
Human hair's strength and flexibility vary by ethnicity, damage, and treatment.
research Investigation of Hair Dye Deposition, Hair Color Loss, and Hair Damage During Multiple Oxidative Dyeing and Shampooing Cycles
Repeated dyeing and shampooing cause hair color loss and damage.
research Cross-Linked Features of Mouse Pelage Hair Resistant to Detergent Extraction
Some mutant mice have hair with abnormal cross-linking, mainly in the cuticle, not affecting other hair parts.
research Reactive Keratin Derivatives: A Promising Strategy for Covalent Binding to Hair
Modified keratin binds better to hair, especially bleached hair.
research On the Correlation Between the Curvature of the Human Eyelash and Its Geometrical Features
Eyelash curvature is linked to the thickness of the cuticle layer at the root.
research Compartmentation of Mitochondrial and Oxidative Metabolism in Growing Hair Follicles: A Ring of Fire
Growing hair follicles have high mitochondrial activity and ROS in specific regions, aiding hair formation.
research Scanning Electron Microscope Evaluation of Hair Dye Effects on the Cuticle Cells of Canine Hair
Hair dye can damage dog hair and cause health issues.
research Evaluation of Polymethylene Waxes as Conditioning Agents in Hair Relaxers
Polymethylene wax in hair relaxers makes hair smooth and shiny with less damage.
research Topographical and Tribological Characteristics of Asian Human Hair Cuticles
Hair damage increases significantly with higher temperatures and longer heating times.
research The Cracking of Human Hair Cuticles by Cyclical Thermal Stresses
Frequent blow-drying causes cracks and breakage in hair cuticles.
research The Structural Implications of Water Hardness Metal Uptake by Human Hair
Human hair absorbs calcium and magnesium from tap water, affecting its structure and styling properties.
research An Ultrastructural Study on Corkscrew Hairs and Cigarette-Ash-Shaped Hairs Observed by Dermoscopy of Tinea Capitis
Corkscrew and cigarette-ash-shaped hairs in tinea capitis are caused by internal hair degradation and external resistance.
research Research on Hair Bleach That Causes Less Hair Damage and Smells Less Pungent Than Ammonium Hydroxide
AMPD is a better and less damaging alternative to ammonium hydroxide for hair bleaching.
research Loose Anagen Hair Syndrome: A Case Study of a 6-Year-Old Girl
A 6-year-old girl's inability to grow her hair long was due to Loose Anagen Hair Syndrome, which causes hair to shed easily and may improve with age.
research Role of Scalp Health in Achieving Optimal Hair Growth and Retention
Healthy scalp leads to better hair quality and less damage.
research Integral Hair Lipid in Human Hair Follicle
Human hair has a protective lipid layer that can be damaged by moisture and treatments, affecting hair growth and health.
research Non-Invasive Evaluation of Hair Interior Morphology by X-Ray Microscope
X-ray microscopy can non-invasively show hair structure changes after treatments, but it's less detailed than TEM and needs improvement.
research Characterization of Human KAP24.1, A Cuticular Hair Keratin-Associated Protein with Unusual Amino Acid Composition and Repeat Structure
Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.
research Structural Analysis of the Outermost Hair Surface Using TOF-SIMS with Gas Cluster Ion Beam Sputtering
The hair's outermost surface has multiple layers of lipids and proteins.
research Fine Structure and Immunocytochemistry of Monotreme Hairs, with Emphasis on the Inner Root Sheath and Trichohyalin-Based Cornification During Hair Evolution
Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.