auxochrome


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Related to auxochrome: chromophore, Bathochromic shift

auxochrome

[′ȯk·sə‚krōm]
(chemistry)
Any substituent group such as ‒NH2 and ‒OH which, by affecting the spectral regions of strong absorption in chromophores, enhance the ability of the chromogen to act as a dye.
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References in periodicals archive ?
All these have part of phenols and naphthols having hydroxyl group as auxochrome group.
Synthesis, characterization and applications of some novel mordent and heterocyclic disperse dyes on polyester and wool fibers
This method is based on the observation that the Coomassie Brilliant Blue G-250 exists in two different color forms, red (365 nm) and blue(595 nm) the red form is converted to blue form upon binding of the dye to the auxochrome group -N[H.
Antibacterial activity of chitosan chemically modified with new technique
The poor nuclear/ cytoplasmic differentiation seen in the use of unmordified Roselle extract and eosin as compared to haematoxylin and eosin may highlight the need for an auxochrome which stabilizes a staining reaction as obtained in the haematoxylineosin method.
A study of the staining effect of Roselle (Hibiscus sabdariffa) on the histologic section of the testis/Estudio de los efectos de Tincion de la Rosa de Jamaica (Hibiscus sabdariffa) en cortes histologicos de testiculo

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