Existence of Various Structural Zones in Keratinous Tissues Revealed by X-Ray Microdiffraction

    September 1999 in “ Journal of Synchrotron Radiation ”
    Bertrand Busson, Per Engström, J. Doucet
    TLDR Keratinous tissues have multiple structural layers, including ordered keratin and lipid granules.
    The study conducted microdiffraction experiments on feather shaft, horse and human hair, and porcupine quill samples to explore the structural zones in keratinous tissues. It revealed the presence of several structural layers, including highly ordered α- or β-type keratin and more amorphous keratin. Additionally, lipid granules were found primarily in the outer layers. This research demonstrated the potential of third-generation synchrotron sources for detailed structural microanalysis of biological tissues.
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