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Photomodification of the cell membrane complex of wool‐the effect on dyeability
Author(s) -
Sideris V,
Leaver IH,
Holt L A,
Jones L N
Publication year - 1992
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1992.tb01384.x
Subject(s) - rose bengal , wool , eosin y , membrane , fluorescence , chemistry , transmission electron microscopy , aqueous solution , fluorescein , fluorescence microscope , eosin , electron microscope , microscopy , scanning electron microscope , photochemistry , biophysics , materials science , staining , optics , nanotechnology , biochemistry , catalysis , organic chemistry , biology , composite material , photocatalysis , physics , genetics
Wool fibres have been selectively stained in the region of the cell membrane complex with eosin Y, fluorescein and rose bengal. Dye distribution patterns were determined by fluorescence microscopy and electron‐induced X‐ray emission (in conjunction with scanning transmission electron microscopy). Irradiation of the stained fibres with visible light caused a reduction in the rate of dye uptake when the wool was subsequently treated with an aqueous solution of the dye CI Acid Red 18. The change in the dyeability of wool was attributed to selective photomodification of the cell membrane complex.