dye

(redirected from anionic dye)
Also found in: Dictionary, Thesaurus, Encyclopedia.

dye

 [di]
any of various colored substances containing auxochromes and thus capable of coloring substances to which they are applied; used for staining and coloring, as test reagents, and as therapeutic agents.

dye

(),
A stain or coloring matter; a compound consisting of chromophore and auxochrome groups attached to one or more benzene rings, its color being due to the chromophore and its dyeing affinities to the auxochrome. Dyes are used for intravital coloration of cells, staining tissues and microorganisms, as antiseptics and germicides, and some as stimulants of epithelial growth. For individual dyes, see the specific names. Commonly but improperly used for radiographic contrast medium.
[A.S. deah, deag]

dye

()
A stain or coloring matter; a compound consisting of chromophore and auxochrome groups attached to one or more benzene rings, its color being due to the chromophore and its dyeing affinities to the auxochrome. Dyes are used for intravital coloration of living cells, staining tissues and microorganisms, as antiseptics and germicides, and some as stimulants of epithelial growth. Commonly used term for radiographic contrast medium.
[A.S. deah, deag]

dye

()
A stain or coloring matter. Commonly but improperly used to mean radiographic contrast medium.
[A.S. deah, deag]

Patient discussion about dye

Q. Has anyone had an allergic reaction to gadolinium dye, MRI contrast agents, I have had a severe reaction. I would like to know the long term effects of this dye. And if anyone else has had or heard of problems and reactions to it. Please answer me. Thank you

A. In 1969 I almost died from the IVP dye. I had no idea I was allergic and when I awoke I was in a "recovery room." The doctor told me to always tell any physicians/paramedics etc of my allergy status regarding the dye. I now have chronic back pain, have a history of cancer in the family and the doctor wants to do a scan (including dye) but when I emphasized that I was allergic he backed off. Now I am wondering if there is anything else that can be done to test the bone (scan) without the dye. Any answers? Thanks

More discussions about dye
References in periodicals archive ?
The pens were also analyzed with the anionic dye capillary electrophoresis method; however, the electropherograms were similar for most of the pens and revealed that few, if any, anionic dyes were present.
Varada Reddy, "The use of an agricultural waste material, Jujuba seeds for the removal of anionic dye (Congo red) from aqueous medium," Journal of Hazardous Materials, vol.
Metanil Yellow was the only anionic dye that had an easily interpretable laser desorption/ionization-mass spectrometry that could be assigned to the single-charged molecule at m/z 351.
Therefore, the feasibility of achieving cationic and anionic dye removal from aqueous solutions using a combined electrocoagulation and adsorption system composed of commercial activated carbon and sewage sludge-derived carbonaceous material as adsorbents was examined.
The absorption of cationic dye (CV), anionic dye (AY), and mixture of dyes (CV + AY) by SHs and MNHs were investigated.
This shows that pH<pHzpc and the surface of adsorbent is positively charged which favors the adsorption of anionic dye Alizarin Red S.
In this regard, reactive dyes and anionic dyes such as acid dyes are not usually used for acrylic colouration as these dyes suffer from being not substantive for the fabrics as a result of the repulsive effects that occur between the anionic groups present in the fabrics and those present in the dye molecules.
However, to our knowledge, studies on anionic dyes removal using feldspars are limited in the literature, and since several reports have recently presented that the modified geological materials provide higher adsorption capacity towards anionic components than their original, in this study, bio-based CTS/feldspar composite was prepared for removing Acid Black 1 as a model to study adsorptive potential of the composite towards acid dyes.
This solubilization process can be explained by the host guest relationship between the dye and surfactant molecules, where anionic dye molecules are accommodated within the micelles of cationic CTAB.
The mercerized fibers adsorb higher amounts of anionic dye than fibers which were only purified.
Li, "Mechanism of adsorption of anionic dye from aqueous solutions onto organobentonite," Journal of Hazardous Materials, vol.