chromophore

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Related to Chromophore group: chromophoric

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

(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]
References in periodicals archive ?
Furthermore, the differences observed between dyes are related to the chemical structure of each one; to have complete decolorization of CV, demethylation of three groups dimethyl is required (considered as chromophore groups), and for MG only two demethylations must be carried out.
A597 nm peak corresponding to the N=N chromophore group containing a conjugated [bar.[omega]] system was observed.
Given'the slowest rates of drug release, the color modification of the doxycycline/gelatin solution and the increase of viscosity of the gelatin solution in presence of doxycycline, it can be assumed that strong physical interactions (because GPC analyzes did not confirm the increase of the average molar masses of gelatin treated with doxycycline) take place between the doxycycline chromophore groups and the functional groups of the gelatin.
These copolymers contain azide and alkyne groups as well as the chromophore groups. Heating induces crosslinking by 1,3 dipolar cycloaddition between an azide and an alkyne to give a 1,3 triazole linkage, resulting in a very stable structure.
PAs chain contains two types of chromophore groups being in conjugation: the aromatic ring and the imine (C=N) group.