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Fluorescein

Fluorescein

(Science: chemical) Fluorophore commonly used in microscopy.

fluorescein di acetate can be used as a vital stain or can be conjugated to proteins (particularly antibodies) using isothiocyanate.

excitation is at 365nm and the emitted light is green yellow (450-490nm). The emission spectrum is ph sensitive and fluorescein can therefore be used to measure ph in intracellular compartments.


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How can I determine lysozyme activity?

... The fluorescence increase can be measured using any spectrofluorometer, mini-fluorometer or fluorescence microplate reader that can detect fluorescein (Figure 2).

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by angelsmile
Tue Oct 21, 2008 2:30 am
 
Forum: Microbiology
Topic: How can I determine lysozyme activity?
Replies: 0
Views: 993

CMNB caged fluorescein

I am planning some work using CMNB caged fluorescein for some in-vivo injection and imaging. I've never used any caged fluorophore before and I was wondering if anyone has any advice with regards to its use. What kind of buffer would I want to ...

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by Mhturner
Mon Dec 03, 2007 11:28 pm
 
Forum: Molecular Biology
Topic: CMNB caged fluorescein
Replies: 2
Views: 629

The Fiber Disease

... reactions were performed by moving the targets across the array of probe-containing microchambers by electrophoresis . The hybridization of fluorescein-labeled ssDNA targets to complementary probes was observed by fluorescence microscopy . These studies resulted in four key observations: ...

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by Nadas Moksha
Sat Nov 25, 2006 4:34 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 771249


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