December 2021 in “2021 International Conference on Electronic Information Technology and Smart Agriculture (ICEITSA)” Chemical dyes damage hair's internal structure more than perming, as shown by a special imaging technique.
August 2024 in “Biophysics Reviews” Mammal hairs have different internal structures.
1 citations
,
January 2007 in “AIP conference proceedings” High-resolution x-ray images showed three main structures in human hair: medulla, cortex, and cuticle.
4 citations
,
January 1981 in “PubMed” Hair medullary cells in mammals vary in complexity, with humans having more structured cells similar to inner root sheath cells.
January 2009 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Curved human hair has different structures on each side, which might cause its shape and is similar to wool.
August 1994 in “Journal of Dermatological Science”
191 citations
,
November 1959 in “Annals of the New York Academy of Sciences” Hair and wool have complex microscopic structures with microfibrils and varying cystine content.
30 citations
,
July 2000 in “PubMed” Hair has unevenly distributed proteins and lipids, with lipids mainly in the cuticle and proteins in the cortex and medulla.
28 citations
,
September 2011 in “Stem Cell Reviews and Reports” 4 citations
,
November 2024 in “Current Opinion in Genetics & Development”
March 2024 in “Advanced healthcare materials/Advanced Healthcare Materials” Scientists developed a new way to create skin-like structures from stem cells using a special 3D gel and a device that improves cell organization and increases hair growth.
2 citations
,
December 2022 in “Journal of toxicologic pathology” Skin structure complexity and variability are crucial for assessing skin toxicity in safety tests.
January 2025 in “Nature Communications” Large-scale reconstructions enhance understanding of vibrissal sensory mapping in the brain.
50 citations
,
March 2001 in “Clinics in dermatology” Human hair is complex and grows in cycles starting from embryonic life.
January 2005 in “Seibutsu Butsuri/Seibutsu butsuri” Chemical treatments damage hair more than UV exposure, making it thinner and less flexible.
55 citations
,
January 2013 in “International Journal of Cosmetic Science” African hair's keratin structure is influenced by its higher lipid content.
5 citations
,
January 2004 in “Analytical Sciences X-ray Structure Analysis Online” Minoxidil's crystal structure shows two different molecule shapes and nitrogen states.
12 citations
,
December 2011 2 citations
,
January 2010 Tianzhu white yak hair varies in structure and density between fuzz and coarse hair.
3 citations
,
May 1991 in “Journal of Investigative Dermatology”
5 citations
,
March 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Dynamic, light touch is sensed through a common mechanism involving Piezo2 channels in sensory axons.
May 2024 in “Journal of colloid and interface science” The hydrogel helps skin heal by encouraging new blood vessel growth.
September 1972 in “大会学術講演梗概集. 構造系” The document explains common hair disorders and the basics of hair anatomy and life cycle.
December 1991 in “Annals of the New York Academy of Sciences” Keratin proteins are crucial for hair structure and strength.
8 citations
,
May 2005 in “The American journal of dermatopathology/American journal of dermatopathology” The hair defect is due to abnormal inner root sheath keratinization.
January 2000 in “Zhongguo yixue wulixue zazhi” Different human hair keratin types have unique structures that affect how they dissolve and can be used to create self-tendons.
63 citations
,
December 1998 in “Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology” The study improved understanding of keratin fiber structure by showing consistent microfibril diameter but varying distances and electron density profiles.
7 citations
,
December 1970 in “Biochimica et Biophysica Acta (BBA) - Protein Structure” 660 citations
,
December 2011 in “Cell” Different hair follicles in the skin are innervated by unique combinations of mechanosensory neurons, crucial for touch sensation.
34 citations
,
December 1984 in “Journal of Cutaneous Pathology” Monilethrix hair issues are due to problems in the hair's internodes.