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150-180 / 1000+ resultsresearch Analysis of Biological Elements of Scalp Hairs With Sem-Edx and Tem and its Application to the Hair Comparison
SEM/EDX can analyze hair elements but struggles with trace elements, limiting its forensic use.
research CRYSTAL STRUCTURE OF HSIANGHUALITE
research Modeling and Simulation of X-Rays Radiotherapy
Microbeam Radiation Therapy is effective, but using a linear accelerator reduces its benefits.
research Single hair analysis by X-ray fluorescence spectrometry detects small changes in dietary zinc intake: A nested randomized controlled trial
Hair analysis can detect small changes in dietary zinc intake.
research Direct evidence supporting the existence of a helical dislocation in protofilament packing in the intermediate filaments of oxidized trichocyte keratin
Oxidized trichocyte keratin has a helical dislocation in its structure.
research A Correlative Fluorescent and Electron Microscopic Technique for Ultralocalization of Trichocyte Keratins
Researchers developed a new method to clearly see and label hair proteins with minimal errors using advanced freezing and microscopy techniques.
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 Scattering from Elliptical Hair Fibers Based on Microfacet Theory
research A Dispute Between the Cavendish and Caltech: The Emergence and Ubiquity of the α-Helix
The alpha-helix was confirmed as a key structure in proteins.
research Generating Disulfides in Multicellular Organisms: Emerging Roles for a New Flavoprotein Family
QSOX enzymes help form protein bonds in cells, especially in tissues with high secretory activity.
research Recent advances in X-ray microanalysis in dermatology.
Trace elements like calcium, iron, and zinc are unevenly distributed in hair, while sulfur is even, and increased phosphorus and potassium levels are linked to skin reactions.
research Azimuthal Scattering from Elliptical Hair Fibers
Light scatters differently from elliptical hair fibers than from circular ones, and a new model better predicts this behavior, especially for shiny highlights.
research Effect of disulfide bonds in human hair fibers on the melting behavior of their crystalline structure
Disulfide bonds affect the melting behavior of hair's crystalline structure, but hair retains some stability even after these bonds are broken.
research A Raman spectroscopy investigation of the resilience of hair cuticular scales under uniaxial stress
Hair cuticles remain stable and resilient under stress due to strong protein content and crosslinking.
research Water distribution in human hair microstructure elucidated by spin contrast variation small-angle neutron scattering
The technique showed that human hair has two main parts, with 68% being rigid and the rest flexible, and water swelling affects its structure.
research Insights on the mechanical behavior of keratin fibrils
Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
research Improved two‐dimensional electrophoretic mapping of Japanese human hair proteins; application to curved and straight Japanese human hairs; and protein identification by MALDI MS and MS/MS quadrupole time‐of‐flight mass spectrometry
The study found that minor protein differences between curved and straight Japanese hair are unlikely to significantly affect hair structure.
research Crystallization and preliminary X-ray analysis of the human androgen receptor ligand-binding domain with a coactivator-like peptide and selective androgen receptor modulators
Scientists successfully created and analyzed the structure of a part of the human androgen receptor with specific modulators and a peptide to understand how it binds differently in various tissues.
research FEMALE CADAVER IN THE HAN TOMB NO. 1 X-RAY DIFFRACTION STUDIES ON TWO KINDS OF FIBROUS PROTEIN
The protein structures in the hair and tendon were preserved, but their molecular arrangements changed.
research Topological Markers for Subcellular Chemical Mapping using TOF-SIMS
TOF-SIMS improved chemical mapping in cells, confirming gunshot residue, tracking anti-tumor drugs, and identifying molecules in mosquitoes and wounds.
research Quantitative mapping of melanin in hair fibers using fluorescence lifetime imaging microscopy
research Investigation of human hair using ToF-SIMS: From structural analysis to the identification of cosmetic residues
The conclusion is that a new method can identify cosmetic residues on hair and match them to their products.
research Trichothiodystrophy hair shafts display distinct ultrastructural features
Trichothiodystrophy hair is structurally abnormal with protein and organization issues.
research Probing calcium and sulfur distribution and pattern in hairs using micro-proton induced X-ray emission （MPIXE）
Women's hair has more sulfur, and black hair has more calcium than white hair.
research Technical Advancement and Biomedical Application of Multiphoton Excitation Microscopy
Multiphoton excitation microscopy is a promising tool for deep tissue imaging and clinical applications.
research A new staining method for visualization of keratin filaments in hair fibre cross sections.
A new method effectively visualizes keratin in hair without harsh chemicals.
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.
research The role of disulfide bond formation in the structural transition observed in the intermediate filaments of developing hair
Disulfide bonds are crucial for hair structure during keratinization.
research Chemical and photo-oxidative hair damage studied by dye diffusion and electrophoresis.
Chemical treatments and light exposure damage hair proteins.