Abstract
IN earlier investigations of the structure of wool1, two fractions were obtained by peracetic acid – ammonia treatment of the keratin. One fraction was found to be soluble in weak ammonia, leaving behind an insoluble residue of 5–10 per cent in non-medullated specimens. The following is a report of an investigation by X-ray and infra-red methods of such specimens obtained under controlled conditions of extraction. Slurries of the insoluble residue were dried down to form films so that, wherever possible, X-ray and infra-red studies could be made on the same samples. Films of the soluble wool keratin were also made which were capable of investigation by the two methods.
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HAPPEY, F., MACRAE, T. & WESTON, G. Structure of Wool. Nature 172, 673–674 (1953). https://doi.org/10.1038/172673a0
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DOI: https://doi.org/10.1038/172673a0
