10 citations,
September 2020 in “Biopolymers” Hair's structure and properties change with pH; acidic pH maintains strength and less swelling, while alkaline pH increases water content and swelling.
January 2013 in “Transactions of the Materials Research Society of Japan” Soluble wool keratin was prepared by modifying disulfide bonds of cysteine to carboxymethylalanyl disulfide (CMAD) groups using thioglycolic acid under alkaline conditions. The resulting carboxymethylalanyl disulfide keratin (CMADK) had a desirable molar mass and some molecules exhibited a helical structure. CMADK with low molar mass, prepared at pH 13.5 and 60°C for 3 hours, was added to permanent waving agents. This treatment significantly reduced hair damage even after three repetitions, demonstrating CMADK's effectiveness in preventing hair damage from bleaching and permanent waving.
April 2018 in “Journal of Chromatographic Science” Finasteride's stability and safety confirmed through precise analytical methods.
Hair fibers degrade and change color in very basic water.
5 citations,
July 2023 in “International journal of biological macromolecules” The new wound dressing material speeds up healing, fights infection, and outperforms traditional dressings.