research Organization of microfibrils in keratin fibers studied by X-ray scattering
The study improved understanding of keratin fiber structure by showing consistent microfibril diameter but varying distances and electron density profiles.
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30 / 1000+ resultsresearch Three-dimensional architecture of macrofibrils in the human scalp hair cortex
This study observed that human hair macrofibrils predominantly exhibit a double-twist architecture with varying inter-macrofibril angles, advancing insights into their structural organization and mechanical implications.
research Nucleation and growth of macrofibrils in trichocyte (hard-α) keratins
This study suggests that varying intersheet interactions may explain the differences between the two polymorphic forms of macrofibril assembly in Merino wool and hair.
research Helical twist direction in the macrofibrils of keratin fibres is left handed
Keratin fibers in hair twist left-handed.
research Macrofibril Formation
research Investigation of age-related decline of microfibril-associated glycoprotein-1 in human skin through immunohistochemistry study
This study found that levels of the protein MAGP-1, important for skin elasticity, decrease with aging and photoexposure, potentially contributing to skin fragility, sagging, and enlarged pores.
research The microfibrillar proteins of human hair: Separation by high-performance liquid chromatography and isolation of some proteins enriched in glycine and tyrosine
This study introduced a method to isolate and separate microfibrillar proteins from human hair, identifying previously undetected glycine- and tyrosine-rich proteins.
research Injectable platelet rich fibrin therapy for androgenetic alopecia: a series of 15 cases
This study found that injectable platelet-rich fibrin significantly improved hair growth and patient satisfaction as a cost-effective adjuvant treatment for androgenetic alopecia.
research Multiscale modelling of human hair
This study developed a multiscale model to understand human hair fiber mechanics and found that the yield stress decreases linearly with temperature, supported by both simulations and experimental stretching of hair fibers.
research Analysis of structural changes in permanent waved human hair using Raman spectroscopy
This study found that permanent waving treatment induces structural changes in the cortex proteins of white human hair, significantly reducing its tensile strength without altering the S-S band intensity.
research Photoageing of Hair Fiber and Photoprotection
This study found that sunlight exposure causes significant structural and chemical damage to hair, including cuticle loss, cortex damage, and discoloration, with water playing a major role in discoloration of brown hair.
research In vitro Assembly Properties of Human Type I and II Hair Keratins
This study suggests that specific combinations of human type I and II hair keratins, particularly K35-K85 and K36-K81, have distinct in vitro assembly properties that are significant for macrofibril formation.
research Characteristic microstructure of curved human hair
This study observed that hair fibers in older women become more curved with age, decreasing hair luster due to their disordered alignment and structural differences between the convex and concave sides.
research [Contribution to hair medulla study (author's transl)].
This study found that medullary cell content in mammal hair evolves from an amorphous form to a biphasic phase, with human and anthropoid hair containing both macrofibrils and microfibrils.
research Characteristic Microstructure of Curved Human Hair
This study found that the structural and chemical composition of human curly hair may resemble that of sheep wool, implying a shared characteristic among mammals with wavy hair.
research Human hair keratin network and curvature
In this study, researchers found that the curliness of human hair is associated with an asymmetric structure at the cellular level, particularly in the differentiation of the precortex.
research Structural change of keratin protein in human hair by permanent waving treatment
This study found that permanent waving treatment partially disrupts the α-helical structure in human hair microfibrils, primarily during the initial reduction phase, rather than just affecting disulphide bonds.
research An Electron Microscopy Study of Keratin Degradation by the Fungus Microsporum gypseum in vitro
This study found that the fungus Microsporum gypseum enzymatically degrades keratin in human hair, with the sequence of degradation reflecting the keratinization and cystine content of individual hair components in vitro.
research Chapter 4 Cytomechanics of Hair
This review explains the mechanical composition and molecular interactions that determine hair's mechanical properties, without providing any new experimental findings.
research Studies on the Preservative Condition and the Ultrastructure of Hair of Newly Found Sixteenth Century Mummy in Paju
This study found that the 16th-century mummified hair from a female mummy in Paju was remarkably well-preserved, with the hair's ultrastructural features maintained likely due to a calcium-rich surface coat.
research Stiffness of Human Hair Correlates with the Fractions of Cortical Cell Types
In this study, the bending stiffness of human hair was linked to the varying proportions of para-like versus ortho-like cortical cells within the hair fiber.
research Ultrastructural Localization of Hair Keratins in Human Scalp Hair Shafts as Revealed by Rapid-Freezing Immunocytochemistry.
This study used rapid-freezing immunocytochemistry to successfully map the ultrastructural localization of hair keratins in human scalp hair, primarily finding them in macrofibrils in the cortex and endocuticle.
research Water distribution in human hair microstructure elucidated by spin contrast variation small-angle neutron scattering
This study utilized the DNP–SANS technique on human hair for the first time and found significant changes in the SANS profile dependent on polarization conditions, providing insights into the structural composition and dynamic properties of keratin and its associated proteins.
research New aspects of the structure of human hair on the basis of optical microscopic observations of disassembled hair parts.
This study discovered previously unknown structures in human hair shafts that may stabilize hair structurally and physicochemically.
research The swelling behaviour of hair studied through the structural change of keratin protein during the permanent waving treatment
This study analyzed the swelling behavior of human hair during permanent waving treatment, finding that both the microstructure and macrostructure of intermediate filaments swell simultaneously at the initial stage, and while partially destructed by reduction, they are considerably restored through oxidation.
research Ultrastructural Characteristics of Neonate Scalp Hair
In this study, researchers found that neonate hairs have a distinct microstructure with no medulla and smaller hair follicles compared to adult hairs.
research Direct Observation of Hair Components Involved in Formation of Permanent Waves
This study found that microfibrils play a crucial role in shaping permanent waves by thioglycolic acid, and treating damaged hair with hydrolyzed keratin improved both waving efficiency and hair damage.
research 파주에서 발견된 16세기 미라 머리카락의 미세구조과 보존상태에 관한 연구
This study found that the hair of a 16th-century female mummy discovered in Paju was remarkably well-preserved due primarily to a calcium-based surface coating that likely inhibited moisture and microorganism infiltration.
research ELECTRON MICROSCOPE STUDIES OF HAIR AND WOOL
This article reports electron microscope studies on the structure of hair and wool, but it does not present new clinical findings.
research Progress report on hair keratin research
Advancements in hair keratin research could lead to better hair health treatments.