research High spatial resolution study of human skin using synchrotron infrared microscopy: application to the penetration of external agents
External agents penetrate skin more easily in areas with fewer lipids, especially through hair follicles.
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30 / 127 resultsresearch 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 Multimodal Evidence of Mesostructured Calcium Fatty Acid Deposits in Human Hair and Their Role on Hair Properties
Calcium fatty acid deposits found in human hair can change its appearance and feel.
research ARCHAEOLOGICAL AND CONTEMPORARY HUMAN HAIR COMPOSITION AND MORPHOLOGY
Mummy hair's chemical composition may not accurately show ancient people's health due to environmental contamination.
research Discrete Nanoscale Distribution of Hair Lipids Fails to Provide Humidity Resistance
Hair lipids do not protect against humidity.
research Quantifying the effects of repeated dyeing: morphological, mechanical, and chemical changes in human hair fibers
Repeated hair dyeing significantly damages hair.
research Integral characterization of normal and alopecic hair at different degeneration stages by in-situ visible and chemical imaging
Alopecic hair has more irregular structures and chemical changes than normal hair, reducing its strength.
research Evaluation of Cysteic Acid in Bleached Hair Using Infrared Spectroscopy
Bleaching hair increases cysteic acid levels in a predictable way.
research Effects of ultraviolet B radiation on physicochemical properties of human hair shaft
UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.
research Measuring changes in chemistry, composition, and molecular structure within hair fibers by infrared and Raman spectroscopic imaging
Infrared and Raman imaging can non-destructively analyze hair structure and help diagnose hair conditions.
research Polarized microscopy in genetic hair disorders: case series
Polarized microscopy helps identify hair irregularities in genetic disorders.
research Lipid loses and barrier function modifications of the brown‐to‐white hair transition
White hair has less lipid content and absorbs water differently than brown hair.
research Human Hair as a Testing Substrate in the Era of Precision Medicine: Potential Role of ‘Omics-Based Approaches
Human hair shows promise for non-invasive medical testing, but more research is needed to standardize its use.
research Keratin network modifications lead to the mechanical stiffening of the hair follicle fiber
Changes in keratin make hair follicles stiffer.
research External lipid function in ethnic hairs
African hair has the most lipids, while Caucasian hair is more hydrated and stronger.
research Analysis of Lipids in the Medulla of Japanese Hair and Their Function
Lipids in Japanese hair help maintain glossiness and structure.
research Interactions between Damaged Hair Keratin and Juglone as a Possible Restoring Agent: A Vibrational and Scanning Electron Microscopy Study
Juglone from walnut extracts may help repair damaged hair.
research Infrared and Raman Diagnostic Modeling of Phosphate Adsorption on Ceria Nanoparticles
Phosphates strongly attach to cerium dioxide nanoparticles, showing specific spectral patterns.
research Novel approaches to characterize age‐related remodelling of the dermal‐epidermal junction in 2D, 3D and in vivo
3D imaging shows clearer details of skin structure changes with age.
research Thermal Induced Changes in Cuticle and Cortex to Chemically Treated Hair
Heat worsens damage in chemically treated hair, especially bleached and straightened hair.
research Synthesis of a new amino acid derivative with long‐lasting hair shape control effects and elucidation of its mechanisms
A new amino acid derivative, ATS, improves hair texture and moisture, making it easier to straighten curly hair.
research ecancermedicalscience
Hair analysis may help detect breast cancer early by identifying changes in lipid content.
research A discrete transition zone between cuticle and cortex layers of a human hair fibre: changes observed in the presence of breast cancer
Breast cancer alters specific molecular structures in hair, which revert after cancer removal.
research Design and characterization of AgVO3-HAP/GO@PCL ceramic-based scaffolds for enhanced wound healing and tissue regeneration
AgVO₃-HAp/GO@PCL scaffolds improve wound healing and tissue regeneration effectively.
research Hair loss in children in South-East Nigeria: common and uncommon cases
The most common causes of hair loss in children in South-East Nigeria are fungal infections and alopecia areata.
research The reduction of selenium(IV) by boreal Pseudomonas sp. strain T5-6-I – Effects on selenium(IV) uptake in Brassica oleracea
Pseudomonas sp. T5-6-I bacteria increase selenium uptake in Brassica oleracea plants by 130%.
research How different is human hair? A critical appraisal of the reported differences in global hair fibre characteristics and properties towards defining a more relevant framework for hair type classification
Human hair varies widely and should be classified by curl type rather than race.
research Simultaneous RP-HPLC-DAD determination of dansyl amino acids in chemically treated human hair
A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.
research Hair Medulla and its variations in Doshaja Prakruti – An observational study
Hair medulla patterns vary by Prakruti type, affecting hair strength.
research Examining polyquaternium polymers deposition on human excised hair fibers
Certain polymers can stick to hair and increase volume, working best at a pH of 7 to 9.