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

(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 ?
Azo chromophores are usually classified into azobenzene type, aminoazobenzene type as well as pseudostilbene type based on the spectral feature and isomerization behavior of them [34].
In our study, red and blue food dyes were used to mimic the oxygenated hemoglobin and hemoglobin chromophores respectively.
The skin chromophore maps are calculated from the four spectral images, and the perfusion map and fluorophore distribution map--from the video-images taken at green and ultraviolet illumination of the skin, respectively.
Yang, "Excited state intramolecular proton transfer (ESIPT): from principal photophysics to the development of new chromophores and applications in fluorescent molecular probes and luminescent materials," Physical Chemistry Chemical Physics, vol.
The chromophore in an excited triplet state is reduced either by an electron or by a hydrogen transfer from a compound in the environment.
In contrast, RF energy heats the hair follicle from the outside in and requires no chromophore. For gray or white hair where there is little or no melanin, so the optical component of the electromagnetic pulse plays a minor role.
Despite its widespread use, however, mRFP1 had several limitations, including incomplete chromophore maturation, relatively low brightness, and fast photobleaching during imaging experiments.
One effective way to realize the regulation and orientation of the organic chromophores is the incorporation of organic photofunctional molecules into solid host matrices, which can also supply a stable environment to enhance the thermo and photostabilities of organic species.
Optical technology company Lightwave Logic Inc (OTCBB:LWLG.ob) reported on Thursday that it has received outstanding test results from one of its Perkinamine chromophores showing Third-order properties.
"When light is shined on the chromophores, they absorb it, exciting the electrons," Dwyer said.
Other subjects explored include hydrogen bonding effects on the photochemistry of chromophores in solution, photochemical generation of silicon-centered radicals and their reactions, and photochemical processes at the air-water interface of atmospheric droplets.