chromophore

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Related to Chromophores: Bathochromic shift

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 ?
Hence, the increase in fluorescence intensity may be thought to be due to dipole--dipole interactions because of aggregation of chromophores as with the case of chalcone-doped PVA (20).
Site-directed mutagenesis analysis suggested that the FMN chromophore interacting site Gln1029 in Adiantum (corresponding to Gln1045 in the LOV2 of CiNEO, Gln1036 in PdNEO and Gln1039 in PlNEO) plays an important role in the protein structural changes of NEO-LOV2.
Resonance scattering should be minimal in the case of mixtures of microspheres and chromophores since scattering from the individual chromophores is negligible compared to scattering from the microspheres.
For wood coatings, two UVAs for solventborne as well as an encapsulated water-based form (HPT-4 DW) of the red-shifted chromophore of HPT-4 are available.
These three chromophores directly affect how the human eye perceives qualities such as luminosity in young skin or dullness in aging skin.
This results is a negative fluorescent image, essentially a dark spot at the chromophore position surrounded by a sharp halo of emission.
In addition, chondroitin lacks chromophores, which are light absorbing groups required for HPLC analysis.
These new efforts are the direct result of our ability to provide a tunable range of electro-optic chromophores and polymers.
A team led by Larry Dalton, a professor of chemistry at the University of Washington in Seattle, has developed a new organic modulator consisting of chromophores (molecules that absorb incoming light and emit a colored glow) embedded in a polymer base.
Complete lignin control will significantly impact pulp yields and enhance fiber liberation, yellowing, mechanical pulping, chromophores, bleached pulp yield, and perhaps growth rate.
The development of lithium selective sensors has been neglected in comparison to metal ions such as sodium potassium, calcium, and magnesium, through a few organic chromophores have been reported.