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GlossaryDisulfide Bonds

strong covalent links between sulfur atoms in proteins

Disulfide bonds, also known as S-S bonds, are strong covalent bonds formed between two sulfur atoms, typically within the amino acid cysteine. These bonds play a crucial role in stabilizing the three-dimensional structure of proteins, including keratin in hair, by linking different parts of the protein chain. In hair, disulfide bonds contribute to its strength and elasticity, and their alteration can affect hair texture and resilience.

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research A Detailed Mapping of the Readily Accessible Disulfide Bonds in the Cortex of Wool Fibers

6 citations, February 2021 in “Proteins”

Researchers found that the most reachable bonds in wool fibers are near the ends of certain proteins, which help stabilize the fiber's structure.

research A Chemist's View of the Analysis of Human Hair for Trace Elements

109 citations, January 1980 in “Science of the total environment”

Analyzing trace elements in human hair is complex and needs a standardized method.

research Wanted, Dead and Alive: Why a Multidisciplinary Approach Is Needed to Unlock Hair Treatment Potential

21 citations, February 2019 in “Experimental Dermatology”

Different fields of expertise must work together to better understand hair growth and create effective hair loss treatments.

research Cryogelation of Human Hair Keratins

January 2022

Human hair keratins can be turned into useful 3D biomedical scaffolds through a freeze-thaw process.

research The Physical and Chemical Disruption of Human Hair After Bleaching – Studies by Transmission Electron Microscopy and Redox Proteomics

30 citations, September 2018 in “International Journal of Cosmetic Science”

Bleaching hair causes severe structural and chemical damage, including protein loss and oxidation.

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