January 2026 in “Biomaterials and Biosystems” This study extracted water-soluble keratin particles from chicken feathers and verified their structural properties, observing no irritative potential on hen's eggs and positive physiological effects on human skin cells, suggesting their suitability for use on damaged or irritated skin.
69 citations
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January 2009 in “Advances in Materials Science and Engineering” This study demonstrated that keratin can be effectively extracted from wool using alkaline solutions and that the extracted keratin maintains reactivity similar to that from other low-value sources like cattle hair.
6 citations
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October 2016 This article reviews the complex structure and molecular composition of hair keratins, highlighting their self-assembly process and implications for keratin extraction techniques, but reports no new experimental results.
10 citations
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January 2001 in “Bioscience Biotechnology and Biochemistry” This study found that partial protein extraction from keratinized tissues, such as hair and nails, reveals protein patterns distinct from whole protein extracts, including the presence of ubiquitin.
7 citations
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December 1970 in “Biochimica et Biophysica Acta (BBA) - Protein Structure”