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FLUORESCENCE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
Light emitted during absorption of radiation of some other (invisible) wavelength
Classified under:
Nouns denoting natural phenomena
Hypernyms ("fluorescence" is a kind of...):
light; visible light; visible radiation ((physics) electromagnetic radiation that can produce a visual sensation)
Hyponyms (each of the following is a kind of "fluorescence"):
autofluorescence (self-induced fluorescence)
phosphorescence (a fluorescence that persists after the bombarding radiation has ceased)
Derivation:
fluoresce (exhibit or undergo fluorescence)
fluorescent (emitting light during exposure to radiation from an external source)
Context examples:
In addition, demeclocycline, which like other tetracyclines chelates calcium in bone and exhibits a yellow fluorescence under ultraviolet (UV) light, may be used as a fluorescent bone-labeling agent in bone histomorphometry.
(Demeclocycline hydrochloride, NCI Thesaurus)
Now, Gordon Taylor of Stony Brook University and colleagues have devised a photochemical technique that suppresses fluorescence in sample preparation.
(Cell chemistry illuminated by laser light, National Science Foundation)
They are typically used as cell and tissue labels in fluorescence microscopy and cell biology.
(Alexa Fluor, NCI Thesaurus)
A fluorescence in situ hybridization kit that detects the rearrangements between the ALK gene which is located at 2p23 and all known translocation partner loci in lymphomas and carcinomas.
(ALK Break Apart FISH Probe Kit, NCI Thesaurus)
Upon administration, the bevacizumab moiety of bevacizumab-IRDye 800CW binds to VEGF and the fluorescent signal can be visualized using NIR fluorescence imaging (700-1,000 nm).
(Bevacizumab-IRDye 800CW, NCI Thesaurus)
The expression of RUC-GFP by this agent allows for both detection and monitoring of virally infected tumor cells in vivo and vitro with luciferase-mediated bioluminescence imaging and fluorescence imaging techniques.
(Light-Emitting Oncolytic Vaccinia Virus GL-ONC1, NCI Thesaurus)
Fluorescence bronchoscopy is based on the fact that normal tissue fluoresces differently than abnormal tissue when exposed to an appropriate wavelength of light and that this difference can be detected.
(Fluorescence Bronchoscopy, NCI Thesaurus)
An analytical method that utilizes ultraviolet light to excite the sample and detects the fluorescence emitted during the return of the sample to its ground state.
(Fluorimetry, NCI Thesaurus)
It has the advantage of being a less costly assay that does not require fluorescence microscopy with results that are stable over time.
(Chromogenic In Situ Hybridization, NCI Thesaurus)
This agent emits an intense green fluorescence in the presence of alkaline solutions and therefore is used as a label when conjugated to antibodies or as a contrast agent for ophthalmic angiography.
(Fluorescein, NCI Thesaurus)
