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Concept information

Chemical Phenomena > Photochemical Processes > Photobleaching

Terme préférentiel

Photobleaching  

Type

  • mesh:Descriptor

Définition

  • Light-induced change in a chromophore, resulting in the loss of its absorption of light of a particular wave length. The photon energy causes a conformational change in the photoreceptor proteins affecting PHOTOTRANSDUCTION. This occurs naturally in the retina (ADAPTATION, OCULAR) on long exposure to bright light. Photobleaching presents problems when occurring in PHOTODYNAMIC THERAPY, and in FLUORESCENCE MICROSCOPY. On the other hand, this phenomenon is exploited in the technique, FLUORESCENCE RECOVERY AFTER PHOTOBLEACHING, allowing measurement of the movements of proteins and LIPIDS in the CELL MEMBRANE.

Concept générique

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Traductions

URI

http://data.loterre.fr/ark:/67375/JVR-PNKH49XV-N

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RDF/XML TURTLE JSON-LD Date de création 03/07/2002, dernière modification le 17/06/2016