chromophore

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chromophore

[′krō·mə‚fȯr]
(chemistry)
An arrangement of atoms that gives rise to color in many organic substances.
References in periodicals archive ?
Realizing the significance of the chromophores and polymers, we report here the synthesis of new chromophores with substituted triazolo[3,4-b]-thiadiazole heterocycles.
Applying CAD to impurity detection could help overcome some of the obstacles met with UV/Vis detection, since CAD response does not require a chromophore for detection and can provide a uniform response independent of chemical structure.
Epoxy-based azo polymers with strong push-pull azo chromophores (PAZ-ET, PAZ-CN, PAZ-NT, and PAZ-TZ) were synthesized from the precursor (PAZ) by azo-coupling reaction [44].
For example, one may predict that cells in an animal are likely to be light-sensitive if they express opsin, a type of G-protein-coupled receptor (GPCR) that binds a light-reactive molecule of retinal as a chromophore. If an opsin is from a well-characterized family and its primary sequence is known, we can predict functional aspects of the photoreceptors in which it is expressed, such as the wavelengths of light to which these photoreceptors are most sensitive (Yokoyama, 2000.
The monitoring of absorption and scattering coefficients that are strongly related to the concentration of chromophores in a skin with light-skin interaction based models is very crucial and is still an open-ended problem.
By engineering a virus that Belcher has worked with for years, the team was able to get it to bond with multiple synthetic chromophores -- or, in this case, organic dyes.
Restoration specialists believe they have identified the molecule causing this yellowing: light-absorbing molecules known as chromophores.
Four consecutive imaging series are performed in order to collect (1) RGB image at white LED illumination, helping to reveal hidden subcutaneous structures; (2) four spectral images at narrowband LED illumination for mapping of the main skin chromophores; (3) video-images under green LED illumination for mapping of skin blood perfusion; (4) autofluorescence video-images under UV LED irradiation for mapping of the skin fluorophores.
Very few commercial polymers have chemical groups (chromophores), which absorb light in the visible region of the spectrum.
This composite also contains a light-absorbing chromophores which absorb light from the interference pattern, creating localized hot spots.
NDI chromophores have a tendency to undergo self-assembly in polar media as the result of increased hydrophobic effects.
The science of NIRS hinges on some of the fundamental principles of pulse oximetry as they relate to the transmission of light through living tissues and the absorption of light by tissue chromophores (naturally occurring compounds that absorb light [e.g., hemoglobin]).