What wavelength is FITC?
FITC emits fluorescence from 475 to 650 nm, peaking at 525 nm, which falls in the green spectrum.
What does FITC measure?
Fluorescein isothiocyanate (FITC) is widely used to attach a fluorescent label to proteins vi a the amine group. The isothiocyanate group reacts with amino terminal and primary amines in proteins. It has been used for the labeling of proteins including antibodies and lectins.
Is Alexa Fluor 488 same as FITC?
Molecular Probes™ Alexa Fluor® 488 dye—with nearly identical spectral properties and quantum yield as fluorescein (FITC)—produces brighter, more photostable conjugates that are ideal for imaging and other applications requiring increased sensitivity and environmentally insensitive fluorescence detection.
Is FITC hydrophobic?
FITC (fluorescein isothiocyanate) conjugated with dextran has a molecular weight of 4000–40,000 Da and, for sodium fluorescein, the molecular weight is around 376 Da (Wilhelm et al., 2011). Both of these compounds show fluorescence and are hydrophilic in nature; the excitation wavelength is between 490 and 520 nm.
Is FITC a fluorochrome?
FITC (Ex-Max 494 nm/Em-Max 520 nm): Fluorescein isothiocyanate – has a very high efficiency of energy transfer from absorbed to emitted light and is one of the most commonly used fluorochromes.
How does FITC bind to protein?
FITC reacts with a primary amine on the protein to form a covalent amide bond. FITC-labelled protein substrates/peptides, antibodies, peptide hormones are used as specific probes in enzyme kinetics, immunocytochemistry as well as flow cytometry and identification of receptors on target cells, respectively.
Are FITC and GFP the same?
Green Fluorescent Protein (GFP) Antibody (FITC) is a Rabbit Polyclonal antibody conjugated to FITC against GFP.
What is the table of quantum yield standards?
The table of quantum yield standards lists dyes that are frequently used as standards in such relative quantum yield measurements. R.B. Mujumdar, L.A. Ernst, S.R. Mujumdar, C.J. Lewis, A.S. Waggoner, Cyanine dye labeling reagents: sulfoindocyanine succinimidyl esters.
What does FITC stand for?
The Invitrogen Molecular Probes Alexa Fluor 488 dye —with spectral properties and quantum yield nearly identical to those of fluorescein isothiocyanate (FITC)—produces brighter, more photostable conjugates.
How do you determine the fluorescence quantum yield?
Determination of fluorescence quantum yields Fluorescence quantum yields were determined by different approaches depending on whether protolytic reactions take place in the excited state or not.
