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January 2021 in “Biomolecules” Infrared spectral imaging can map hair growth proteins and sugars without staining.
Human hair affects millimeter radiowaves due to its keratin content.
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March 2024 in “Scientific Reports” The neighborhood face index (NFI) accurately predicts properties of complex molecules.
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July 1994 in “Journal of Cell Science” Cross-linked proteins help maintain the structure of hair, feathers, and hagfish teeth.
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October 2021 in “Neuroscience Letters” April 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” 8 citations
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January 1985 in “PubMed” 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.
September 2011 in “Urology” The IPP index is linked to storage symptoms and leftover urine, and may help manage urinary tract symptoms.
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February 1982 in “American Journal of Clinical Nutrition” Hair pluckability can help assess protein nutrition status.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” The study found markers indicating that cells responsible for hair color are differentiating in specific areas of the hair follicle.
February 2023 in “American Journal of Biomedical and Life Sciences” Hair analysis can effectively assess nutritional status.
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January 1997 in “Journal of Dermatological Science” A new protein linked to hair strength was identified, aiding in understanding brittle hair conditions.
July 1993 in “Journal of Radioanalytical and Nuclear Chemistry” Mouse hair element patterns vary, making it unreliable for tracking time.
February 2026 in “Optics” Stretching wool changes its structure and improves fiber alignment.
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June 2011 in “Journal of applied polymer science” L-phenylalanine and hydrolyzed eggwhite protein deeply penetrate human hair.
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December 2020 in “Palaeogeography, palaeoclimatology, palaeoecology” Elephant tusks and hair reveal seasonal diet and climate changes.
Botulinum toxin type A significantly reduces scalp psoriasis severity compared to placebo.
January 2026 in “Clinical Chemistry and Laboratory Medicine (CCLM)” The procedure accurately measures 5-alpha-dihydrotestosterone in blood, useful for standard tests.
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October 2023 in “Philosophical Transactions of the Royal Society B Biological Sciences” Different PADI isoforms help cells develop diverse functions.
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September 2021 in “Physiology News” The authors suggest standardizing how the heart's electrical axis is calculated to improve precision and consistency in ECG analysis.
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February 2015 in “Zenodo (CERN European Organization for Nuclear Research)” Different hair fiber brands have unique electrostatic and dielectric properties.
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January 2011 in “Journal of X-ray science and technology” Perming and bleaching damage hair differently, with bleached hair having more cysteic acid in the cuticle.
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January 2007 in “中国科学通报:英文版” Women's hair has more sulfur, and black hair has more calcium than white hair.