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Chromophore

Chromophore

The part of a visibly coloured molecule responsible for light absorption over a range of wavelengths thus giving rise to the colour. By extension the term may be applied to uv or ir absorbing parts of molecules. Do not confuse with chromatophores.


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Re: hydroxyproline assay to determine collagen content

... NaOH (2N final conc) at 120 degree C for 20 min. To this add 450ul of Chloramine T and oxidise at RT for 25 min. 500ul Ehrlich's reagent added and chromophore developed by incubating at 65 deg for 20 min. Absorbance was read at 550nm. I did not try the authors yet. stip

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by Stip
Wed Aug 03, 2011 6:15 am
 
Forum: Molecular Biology
Topic: hydroxyproline assay to determine collagen content
Replies: 5
Views: 8042

Color Change

I think they're chromophore

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by mith
Fri Jan 22, 2010 8:35 pm
 
Forum: Zoology Discussion
Topic: Color Change
Replies: 8
Views: 2981

Another new blue light receptor...?

... peaks in the green (575 nm) and the red (675 nm) regions. The action spectrum suggests that a blue/UV-A light photoreceptor with a flavin-based chromophore participates in the HL response of Lhl4 gene expression. However, the hypersensitivity to near UV-B light suggests the involvement of an ...

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by bta
Sat Jun 09, 2007 7:24 am
 
Forum: Botany Discussion
Topic: Another new blue light receptor...?
Replies: 2
Views: 2649

chromophores

Chromophores are atomic configurations which can alter the energy in delocalised systems. They are composed of atoms joined in a sequence composed of alternating single and double bonds. Double bonds in organic compounds can ...

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by dipjyoti
Thu Feb 15, 2007 9:37 am
 
Forum: Molecular Biology
Topic: chromophores
Replies: 3
Views: 4271

The Fiber Disease

... M. Sugihara, V. Buss* The absorbance of the visual pigment rhodopsin has been calculated with high precision by using the CASPT2 platform for the chromophore and a natural population analysis for the charges of the amino acids that line the protein pocket. Of the three factors generally assumed ...

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by Nadas Moksha
Fri Dec 08, 2006 8:48 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5479031
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