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

(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 ?
For a fixed number of initial chromophore precursors, the color may saturate to a maximum yellowness with time (polystyrene, polyoxymethylene, and acrylonitrile-butadiene-styrene copolymer in figures 13.6 and 13.7 of Wypych (1) (additionally, Rivaton (13) pp.
Peng, "Photoisomerization of the green fluorescence protein chromophore and the meta- and para-amino analogues," Chemical Communications, vol.
The luminescence polarization P can also be estimated, which is a very effective and sensitive parameter in the evaluation of chromophore molecular alignment in polymer films.
The band gap generally is feeble for all the studied systems, since these values are usually included between 3.55 and 2.34 eV, this last value affected the system noted Mol2 A, the observed decrease of gap is due to the addition of chromophore, these results are confirmed by the propagation of the electronic density.
While UV/Vis detection can easily identify some impurities and other compounds present in a sample, challenges arise with selectivity and identification of impurities that do not have inherent chromophores or vary in response factors (such as extinction coefficients).
Wang, "Liquid-crystalline compounds containing both a strong push-pull azo chromophore and a cholesteryl unit as photoresponsive molecular glass materials," Journal of Materials Chemistry C, vol.
Using three-dimensional (3D) homology modeling, we demonstrated that only two of three candidates have a lysine directed toward the inner protein core, a requirement for chromophore attachment.
At this point, the aforementioned device, which takes into account the scattering of tissue, is to determine the concentration of chromophores (or optical absorbers) due to attenuated light strikes to the superficial layer of tissue.
Catecholamine reacts with phenazone in the presence of peroxidase, generating a less efficient chromophore and thus a negative interference (2).
This research suggests that the PerioLase MVP-7 kills Pg bacteria by destroying an invisible chromophore. In other words, periodontal bugs do not need to be black, or even visible to the human eye, in order to be eliminated by the PerioLase MVP-7.
Subsequent chapters address boron-containing BODIPY chromophore for fluorescent sensing; boronic acid chemistry applications to electroanalysis; polymer self-assembly mediated by boronic acid; boron-containing hydrogels in medical diagnosis; boronate affinity materials; the use of reversible esterification to build boronate microparticles; and the use of boron as a cross-coupling partner.