Abstract
THE insolubilization of many dichromate-sensitized protein dispersions, notably albumins, gelatins, etc. after exposure to light, is well known and is the basis of most photo-engraving procedures1. Polysaccharides, such as starch and gum acacia, and polysaccharide derivatives such as methyl cellulose and, more recently, surface-hydrolysed cellulose esters2, similarly become insoluble when exposed to light in the form of thin, dry films.
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References
Bull, A. J., “Photo-engraving”, 91 et seq. (Arnold and Co., 1934).
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PAUTARD, F. Photo-insolubilization of Dextran. Nature 171, 302–303 (1953). https://doi.org/10.1038/171302b0
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DOI: https://doi.org/10.1038/171302b0
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