chromophore


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Related to chromophore: Auxochrome

chromophore

[′krō·mə‚fȯr]
(chemistry)
An arrangement of atoms that gives rise to color in many organic substances.
References in periodicals archive ?
It is possible that, in the presence of acetaminophen, the competitive disadvantage of bilirubin in either or both of these reactions minimizes production of an interfering chromophore, although the data do not confirm this explanation.
Moerner suggests that changes in the charge around the chromophore are responsible.
In poly (DGEBA-co-HAn-azo-HNAB), containing two hydroxyl groups on one chromophore, the trans configuration of the azo unit can be stabilized by a double H-bond array (see Fig.
In this article, we assumed that the yellowing was due to a chromophore produced by the photo-transition of a precursor molecule to a chromophore that can absorb energy in the visible spectra (see, for example, reference 12).
Photochemical properties are altered by the medium surrounding the chromophore, and these observations have led to the development of a new direction, namely supramolecular photochemistry.
This efficient movement of excitons has one key requirement: The chromophores have to be arranged just right, with exactly the right amount of space between them.
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.
A recent adsorption study of the chromophore on a glass surface by evanescent wave cavity ring-down spectroscopy assumed localized bonding by coulombic attraction between the dye cation and negatively charged dissociated silanol sites on the glass.
The changes in absorption at discrete wavelengths generate raw optical data that can be converted by mathematical software algorithms into real-time concentration changes for each chromophore using a modification of the Beer-Lambert law.
In a similar way, that molecules are combined for innovative drugs and other molecular structures, the claimed dye compounds in Living Proof's technology contain three parts: a chromophore which is responsible for the color of the dye; a color-fastness moiety, which is responsible for binding the dye compound to hair; and a linker, which connects the chromophore to the color-fastness moiety, according to the firm.
The optical properties of the polymers doped with pyrazoline chromophore are interesting and need an extensive study.
Despite its widespread use, however, mRFP1 had several limitations, including incomplete chromophore maturation, relatively low brightness, and fast photobleaching during imaging experiments.