chromophore


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Related to chromophore: Auxochrome

radical

 [rad´ĭ-kal]
1. thorough or sweeping; directed to the cause or root of a morbid process.
2. a group of atoms that enters into and goes out of chemical combination without change and that forms one of the fundamental constituents of a molecule.
color radical chromophore.
free radical a radical that carries an unpaired electron; such radicals are extremely reactive, with a very short half-life.
oxygen radical a toxic metabolite of oxygen, such as superoxide or singlet oxygen, capable of damaging microorganisms and normal tissues.

chro·mo·phore

(krō'mō-fōr),
1. The atomic grouping on which the color of a substance depends.
2. A target tissue for laser light therapy; absorption wavelength of tissue determines choice of laser wavelength. Common dermal chromophores include hemoglobin, oxyhemoglobin, collagen, beta-carotene, and melanin.
Synonym(s): chromatophore (3) , color radical
[chromo- + G. phoros, bearing]

chromophore

/chro·mo·phore/ (kro´mo-for) any chemical group whose presence gives a decided color to a compound and which unites with certain other groups (auxochromes) to form dyes.

chromophore

(krō′mə-fôr′)
n.
A chemical group capable of selective light absorption resulting in the coloration of certain organic compounds.

chro′mo·phor′ic (-fôr′ĭk) adj.

chro·mo·phore

(krō'mō-fōr)
The atomic grouping on which the color of a substance depends.
Synonym(s): chromatophore (3) .
[chromo- + G. phoros, bearing]

chromophore

any chemical group whose presence gives a decided color to a compound and which unites with certain other groups (auxochromes) to form dyes; called also color radical.
References in periodicals archive ?
In contrast, lysine 302 of Air-OX2R1-Like was not in the proximity of the predicted chromophore pocket but rather on a very distant region of the sixth helix.
In our study, red and blue food dyes were used to mimic the oxygenated hemoglobin and hemoglobin chromophores respectively.
It is concluded from the results of the study that the colorimetric method developed for analysis of AS in bulk and injectable dosage form is not only simple, reliable, Moreover, the method requires less time to introduce chromophore as compared to the other reported techniques.
It is a sensitive parameter in the evaluation of chromophore molecular alignment in polymer films.
The absorption bands in the 338-335 nm range have resulted from p-p transition due to -CH=N- chromophore group.
The connection between resonance scattering and chromophore packing inside the cell was used by Bialek to probe the structure of chloroplasts (24).
Melanin, however, the target chromophore, absorbs poorly at this wavelength.
The chromophore formation occurs very fast (1) and can be related to the formation of quinoides, aromatic ketones, and aldehydes.
Copper impurities, for example, can impart a blue or green color to many otherwise colorless species, Thus, that beautiful apple-green smithsonite from Tsumeb which owes its color to the presence of copper was called "herrerite" (named after the local Herero tribe), and the equally attractive Tsumeb adamite colored by the same chromophore was known as "cuproadamite.
We believe the judgment of facial skin age is influenced by uneven chromophore distribution and a decrease in light reflection," said Grammer.
This results is a negative fluorescent image, essentially a dark spot at the chromophore position surrounded by a sharp halo of emission.