January 1991 in “Acta Dermato Venereologica” A new method effectively visualizes keratin in hair without harsh chemicals.
117 citations
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August 2005 in “Ultramicroscopy” Human hair's strength and flexibility vary by ethnicity, damage, and treatment.
February 2017 in “International Journal on Advanced Science, Engineering and Information Technology” Human hair follicle stem cells can grow and turn into skin cells on chitosan templates, which may help in regenerative medicine.
19 citations
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January 2009 in “International review of cell and molecular biology” Hair's strength and flexibility come from its protein structure and molecular interactions.
50 citations
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October 2007 in “Archives of Dermatological Research” 44 citations
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August 1990 in “PubMed” Keratins K1 and K10 are found in the inner root sheath and cuticle of human hair follicles.
April 2011 in “HAL (Le Centre pour la Communication Scientifique Directe)” Chitosan-decorated nanoparticles improve skin delivery of finasteride, with PS404-b-PAA63 being most effective.
July 2025 in “International Journal of Biological Macromolecules” A new microneedle system effectively delivers finasteride to treat hair loss.
The research found that nanoparticles coated with chitosan improved the skin penetration of the drug finasteride.
8 citations
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May 2005 in “The American journal of dermatopathology/American journal of dermatopathology” The hair defect is due to abnormal inner root sheath keratinization.
46 citations
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December 1998 in “Journal of Biological Chemistry” Keratin 19 forms less stable and shorter filaments than keratin 14, giving unique traits to certain skin cells.
41 citations
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May 2012 in “Advanced Healthcare Materials” Human hair keratins improve cell adhesion and growth on culture surfaces.
April 2024 in “Authorea (Authorea)” Understanding the nanoscale structure of skin fibrosis can improve knowledge of wound healing and tissue regeneration.
January 1980 in “中国科学A辑(英文版)” The protein structures in the hair and tendon were preserved, but their molecular arrangements changed.
191 citations
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November 1959 in “Annals of the New York Academy of Sciences” Hair and wool have complex microscopic structures with microfibrils and varying cystine content.
17 citations
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August 2014 in “The Anatomical Record” Scaffoldin helps form hard skin structures in chicken embryos.
November 2023 in “Journal of Basic Microbiology” Green-synthesized zinc oxide nanoparticles effectively inhibit common fungi found on human scalp hair.
39 citations
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February 1990 in “The journal of cell biology/The Journal of cell biology” Trichohyalin, a hair follicle protein, has a part with repeating patterns of 23 amino acids.
September 1978 in “PubMed” Chondroitin sulphate is more abundant than hyaluronic acid in skin and hair samples, except in gamma-keratosis.
4 citations
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November 2016 in “The Journal of Dermatology” Pili torti hair is fragile due to loose keratin filaments and weak disulfide bonds.
3 citations
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January 2022 in “Medical Mycology Journal” Malassezia fungi in healthy noses can form a "spaghetti-and-meatballs" structure.
August 1989 in “Proceedings ... annual meeting, Electron Microscopy Society of America/Proceedings, annual meeting, Electron Microscopy Society of America” The research provided a detailed view of the non-keratinous parts of human hair fibers.
15 citations
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May 2014 in “Journal of Biological Chemistry” A chimeric keratin partially improved skin structure in mice lacking keratin 5, but didn't fully restore normal skin.
August 2024 in “Archives of Dermatological Research” CHI3L1 and CXCL5 proteins help promote hair growth.
6 citations
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January 2018 in “Advances in experimental medicine and biology” 29 citations
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July 1991 in “Biochimica et Biophysica Acta (BBA) - General Subjects” Glycoproteins are present in the cell membranes of various keratin fibers.
2 citations
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June 2001 in “Medical Electron Microscopy” Trichilemmal cysts may form from hair follicle outer root sheath growth.
April 1996 in “Journal of Dermatological Science” 52 citations
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May 2006 in “Journal of Structural Biology” Keratin-associated proteins help link filaments and affect keratin's strength.
January 2026 in “Journal of Nanomaterials”