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 ?
In our study, red and blue food dyes were used to mimic the oxygenated hemoglobin and hemoglobin chromophores respectively.
We focus here on how the PDAP chromophores modify the microstructure of PVA and show that the dispersion of pyrazoline into polymer enhances the optical susceptibility.
A randomized, controlled, double-blind study evaluating melanin-encapsulated liposomes as a chromophore for laser hair removal of blond, white, and gray hair.
6)], which provided important insights into the structure-function relationship between the chromophore and peak wavelengths of these proteins.
According to the company, one of its advanced Perkinamine chromophores demonstrated the ability to effectuate a phase shift with very low optical losses in tests conducted by the City University of New York.
It's like taking pieces of a puzzle, throwing in the current experiments, the waffle puzzle had 16 pieces, with the chromophores located atop the waffle's ridges.
In the case of microalgae, the absorbing chromophores are packed inside the cell.
4,5) Lignin contains chromophores with aromatic conjugated bond systems and carbonyl groups, and as such, its interaction with light (UV/VIS) in the presence of oxygen is the main cause of photooxidation of wood whereas the contributions of cellulose and hemicellulose are minimal.
This makes it possible for the acceptor-reactive-dye molecules to react preferentially with the newly exposed hydrophobic regions containing the bilin chromophores (see Figure 1).
A team of researchers in Belgium and China worked off of Kuzyk's research to develop stronger optical molecules known as chromophores which interact with light 50% more strongly than any previous molecules.
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.