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 ?
p](t) is the number of chromophore precursors present at a chosen exposure time.
2] chromophore and pyrazoline which interacts with 0--H groups of PVA and forms a CTC.
The connection between resonance scattering and chromophore packing inside the cell was used by Bialek to probe the structure of chloroplasts (24).
Based on these results, it is apparent that the used triazine HPT-4 chromophores significantly outperform the conventional BTZ in terms of photopermanence.
Paul Matts, from P&G Beauty (a division of Procter & Gamble that funded the study) to look at the distribution of three chromophores -- melanin, hemoglobin, and collagen -- in the skin of study subjects and correlate this distribution with perceived attractiveness.
6) In detecting the fluorescent signal from a molecule, the optimum distance from the chromophore to the metal tip is approximately 22 nm for a parallel emitting dipole, or 24 nm for a perpendicular emitting dipole.
The chromogenic substrate in Oxoid MLGA, 5-bromo-4-chloro-3-indolyl-b-D-glucuronide (BCIG), is cleaved by the enzyme [beta]-glucuronidase and produces a blue chromophore that builds up within the bacterial cells.
Octane-sulfonic acid is frequently added to improve the chromophore, but this adversely affects the sample.
Basically, what is happening is that light reacts with the pigment, destroying the pigment chromophore (the part of the pigment that is responsible for generating color).
Low (sub-1-volt) halfwave voltage polymeric electro-optic modulators achieved by controlling chromophore shape.