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fluorescein

n. 萤光素

萤光素

WordNet (r) 3.0 (2006) (WordNet)

fluorescein
n 1: a yellow dye that is visible even when highly diluted; used
as an absorption indicator when silver nitrate solution is
added to sodium chloride in order to precipitate silver
chloride (turns pink when no chloride ions are left in
solution and negative fluorescein ions are then absorbed)
[synonym: {fluorescein}, {fluoresceine}, {fluorescent dye},
{resorcinolphthalein}]

The Collaborative International Dictionary of English v.0.48 (gcide)

fluorescein \fluo`res"ce*in\, fluoresceine \fluo`res"ce*ine\,
fluorescein \flu`o*res"ce*["i]n\, n. (Chem.)
A yellowish red, crystalline substance, {C20H12O5}, produced
by heating together phthalic anhydride and resorcin; -- so
called, from the very brilliant yellowish green fluorescence
of its alkaline solutions. It has acid properties, and its
salts of the alkalies are known to the trade under the name
of {uranin}.

Syn: fluorescein, fluorescent dye, resorcinolphthalein.
[1913 Webster]

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Fluorescein - Wikipedia
Fluorescein is a fluorophore commonly used in microscopy, in a type of dye laser as the gain medium, in forensics and serology to detect latent blood stains, and in dye tracing Fluorescein has an absorption maximum at 494 nm and emission maximum of 512 nm (in water)
Fluorescein: Indications, Side Effects, Warnings - Drugs. com
Easy-to-read patient leaflet for Fluorescein Includes indications, proper use, special instructions, precautions, and possible side effects
Fluorescein - StatPearls - NCBI Bookshelf
This article outlines the indications, mechanism of action, adverse event profile, and contraindications for fluorescein to guide the healthcare team in evaluating ophthalmic abnormalities, infection, and pathophysiology, among other conditions
Fluorescein | C20H12O5 | CID 16850 - PubChem
Topical fluorescein is a useful tool in the diagnosis of corneal abrasions, corneal ulcers, herpetic corneal infections, and dry eye Fluorescein angiography is used to diagnose and categorize macular degeneration, diabetic retinopathy, inflammatory intraocular conditions, and intraocular tumors
Fluorescein Angiography: What It Is and What To Expect - Cleveland Clinic
Fluorescein angiography is a test to look at your retina It uses a contrast dye to highlight your blood vessels Eye specialists use fluorescein angiography to diagnose or monitor eye diseases, such as diabetes-related retinopathy or macular degeneration
Fluorescein (medical use) - Wikipedia
Fluorescein is used to help in the diagnosis of a number of eye problems [3] When applied as a drop or within a strip of paper to the surface of the eye it is used to help detect eye injuries such as foreign bodies and corneal abrasions
Fluorescein (intravenous route) - Mayo Clinic
Fluorescein injection is used to help certain parts of the eye (eg, retina, iris) become more visible during eye medical procedures This medicine is to be given only by or under the direct supervision of your doctor
Fluorescein | Fluorescence, Detection, Diagnostics | Britannica
Fluorescein, organic compound of molecular formula C20H12O5 that has wide use as a synthetic colouring agent It is prepared by heating phthalic anhydride and resorcinol over a zinc catalyst, and it crystallizes as a deep red powder with a melting point in the range of 314° to 316° C (597° to 601°
What is Fluorescein? (with pictures) - AllTheScience
Fluorescein is a fluorescent dye which is used in a number of different applications in the sciences and medicine In pure state, fluorescein is a red or orange powder which is dissolved in alkaline solutions to make up a yellow solution which will glow green
FLUORESCEIN injection - DailyMed
Fluorescein Injection, USP is indicated in diagnostic fluorescein angiography or angioscopy of the retina and iris vasculature (1) The most common adverse reactions include skin discoloration, urine discoloration, nausea, vomiting, and gastrointestinal distress (6)

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