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 used X-ray microdiffraction to analyze keratinous tissues such as feather shafts, horse and human hair, and porcupine quills, revealing multiple structural layers within these tissues. These layers included highly ordered α- or β-type keratin and more amorphous keratin, with lipid granules primarily found in the outer layers. This research demonstrated the potential of third-generation synchrotron sources for detailed structural analysis of biological tissues.
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