7 citations,
January 1981 in “Springer eBooks” Certain small molecules and polymers can change hair's physical properties and how it feels by affecting the bonds within the hair.
29 citations,
August 2005 in “Biopolymers” L-cysteine slows down the breaking of bonds in hair due to electrostatic interactions.
49 citations,
April 2010 in “International Journal of Cosmetic Science” Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.
Water and fatty acids affect hair's surface differently based on hair damage, and models can help understand hair-cosmetic interactions.
40 citations,
May 2016 in “Proceedings of the National Academy of Sciences of the United States of America” Changes in keratin make hair follicles stiffer.
8 citations,
May 2020 in “International journal of biological macromolecules” Certain treatments can increase protein binding to natural hair but are less effective on permed hair.
51 citations,
September 2012 in “Biomacromolecules” Disulfide bonds make keratin in hair stronger and tougher.
30 citations,
April 2017 in “Journal of structural biology” Human hair keratin fibers have a detailed nano-scale structure that changes with different conditions.
6 citations,
October 2016 Understanding how keratin structures in hair are arranged and interact is key for creating methods to extract and purify them.
13 citations,
September 2017 in “International Journal of Cosmetic Science” Thioglycerol treatment at pH 9.0 with ammonia causes less hair damage and better waving than thioglycolic acid.
4 citations,
January 2015 in “Sen'i Gakkaishi” Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.
4 citations,
August 2014 in “Journal of molecular structure” Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.
Human hair keratins can self-assemble and support cell growth, useful for biomedical applications.
16 citations,
October 2021 in “Trends in biotechnology” Future hair products will use ecofriendly proteins and peptides to improve hair health and appearance.
2 citations,
January 2015 in “Sen'i Gakkaishi” Washing permed hair after using thioglycolic acid helps reform strong bonds, making hair stronger.
January 2017 in “Clinical approaches and procedures in cosmetic dermatology” Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.
13 citations,
May 2016 in “International journal of biological macromolecules” Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
20 citations,
July 2010 in “Skin Research and Technology” Aging makes hair thinner and rougher, with less clear edges.
47 citations,
June 1996 in “International Journal of Legal Medicine” Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.
14 citations,
January 2012 in “Proteins” Electrostatic interactions mainly stabilize the binding of peptides to hair keratin.
42 citations,
January 2011 in “Journal of Biomedical Optics” Infrared and Raman imaging can non-destructively analyze hair structure and help diagnose hair conditions.
11 citations,
February 2019 in “Frontiers in Physiology” Hair properties are interconnected; a comprehensive, cross-disciplinary approach is essential for understanding hair behavior.
Keratin hydrogels from human hair show promise for tissue engineering and regenerative medicine.
11 citations,
April 2022 in “Biophysical Journal” Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.
12 citations,
October 2018 in “Biotechnology reports” Recombinant keratin K31 makes damaged hair thicker, stronger, and straighter.
September 2024 in “Heliyon” Repeated hair dyeing significantly damages hair.
April 2024 in “Cosmetics” Different oils affect hair flexibility and strength, with their impact varying on whether hair is virgin or bleached.
86 citations,
May 2002 in “Journal of Investigative Dermatology” A new keratin, hK6irs1, is found in all layers of the hair follicle's inner root sheath.
January 2024 in “Molecules (Basel. Online)” Juglone from walnut extracts may help repair damaged hair.
115 citations,
August 2014 in “Jo'jig gonghag gwa jaesaeng uihag/Tissue engineering and regenerative medicine” Human hair keratin can be used in many medical applications.