research Investigation of Aging Effects in Human Hair Using Atomic Force Microscopy
Aging makes hair thinner and rougher, with less clear edges.
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research Fractal Geometry and Topology Abstracted from Hair Fibers
Hair fibers have fractal patterns with properties related to the golden mean, which may affect their functionality.
research Microencapsulated Human Hair Dermal Papilla Cells: A Substitute for Dermal Papilla?
Encapsulated human hair cells can substitute for natural hair cells to grow hair.
research Raman Spectroscopic Analysis of L-Phenylalanine and Hydrolyzed Eggwhite Protein Penetration into Keratin Fibers
L-phenylalanine and hydrolyzed eggwhite protein deeply penetrate human hair.
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 Metal Chelation Assisted Deposition of Polydopamine on Human Hair: A Ready-to-Use Eumelanin-Based Hair Dyeing Methodology
Polydopamine is a safe, effective, and permanent hair dye that turns gray hair black in one hour.
research Interactions Between Crossed Hair Fibers at the Nanoscale
Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.
research Extractable Substances from Human Hair: A Discussion About the Origin of the Holes
Holes in mature hair are likely caused by the removal of substances during hair care.
research The Cracking of Human Hair Cuticles by Cyclical Thermal Stresses
Frequent blow-drying causes cracks and breakage in hair cuticles.
research Runx1 Transcription Factor Is Involved in the Regulation of KAP5 Gene Expression in Human Hair Follicles
Runx1 helps control the KAP5 gene in human hair follicles.
research Changes in Structure and Geometric Properties of Human Hair by Aging
Older people's hair becomes less shiny because it gets more uneven and curved.
research Method for Chronological Recording of Antigen Appearance in Human Head-Hair Shafts and Its Use for Monitoring Glycation Products in Diabetes
The method can help diagnose and monitor diabetes by analyzing hair.
research Hard X-Ray Microscopic Images of the Human Hair
High-resolution x-ray images showed three main structures in human hair: medulla, cortex, and cuticle.
research Attenuated Total Reflection Fourier Transform Infrared Spectroscopy Analysis of Human Hair Fiber Structure
Human hair has different protein structures in its cuticle and cortex.
research Characterization of the Cysteine-Rich Calcium-Binding S100A3 Protein from Human Hair Cuticles
Scientists found out how a specific protein in human hair cuticles behaves and is structured.
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 A Comparative Study of Materials Assembled from Recombinant K31 and K81 and Extracted Human Hair Keratins
Recombinant keratin materials may better promote skin cell differentiation than natural keratin.
research New Aspects of the Structure of Human Hair Based on Optical Microscopic Observations of Disassembled Hair Parts
Human hair's strength comes from a honeycomb-like structure and macrofibrils.
research Understanding the Biochemical Properties of Human Hair Keratins: Self-Assembly Potential and Cell Response
Human hair keratins can self-assemble and support cell growth, useful for biomedical applications.
research Stability of Opiates in Hair Fibers After Exposure to Cosmetic Treatment
Cosmetic treatments like bleaching and perming can greatly reduce opiate levels in hair, possibly leading to false-negative drug tests.
research Characteristic Microstructure of Curved Human Hair
Curved human hair has different structures on its convex and concave sides.
research Mapping Penetration of Cosmetic Compounds into Hair Fibers Using Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS)
Different oils penetrate hair differently; monounsaturated oils like olive oil penetrate better than polyunsaturated oils.
research Hyaluronic Acid: Elucidating Its Penetration Into and Effect on Hair Fibers Using Confocal Raman Spectroscopy and Biometric Techniques
Hyaluronic acid in shampoo penetrated hair well, reduced frizz, and improved hair strength and moisture.
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 Expression of Novel Keratin-Associated Protein 5 Genes in the Cuticle Layer of Human Hair Follicles
The study found nine new hair protein genes in human hair follicles.
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 Analysis of Cysteine on the Surface of Hair Fibers with Spectrofluorescence
Cysteine formation on hair indicates damage, best detected at pH 4.5.
research Exogenous and Endogenous Lipids of Human Hair
Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.
research Author Response: Quantitative Mapping of Human Hair Greying and Reversal in Relation to Life Stress
Hair can naturally regain color after greying, and this change may be linked to stress levels.
research Decision Letter: Quantitative Mapping of Human Hair Greying and Reversal in Relation to Life Stress
Hair can naturally regain color, and stress might influence greying and its reversal.