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The Alexa Fluor family of fluorescent dyes is a series of dyes invented by Molecular Probes, now a part of Thermo Fisher Scientific, and sold under the Invitrogen brand name. Alexa Fluor dyes are frequently used as cell and tissue labels in fluorescence microscopy and cell biology.[1] Alexa Fluor dyes can be conjugated directly to primary antibodies or to secondary antibodies to amplify signal and sensitivity[2] or other biomolecules.[citation needed]
The excitation and emission spectra of the Alexa Fluor series cover the visible spectrum and extend into the infrared.[3] The individual members of the family are numbered according roughly to their excitation maxima in nanometers.
- ^ Invitrogen Staff (6 June 2007). "Alexa Fluor Dyes Spanning the Visible and Infrared Spectrum". Probes.Invitrogen.com. Archived from the original on 11 August 2007. Retrieved 13 August 2007.
- ^ ThermoFisher Staff (26 May 2017). "Alexa Fluor Secondary Antibodies". ThermoFisher.com. Retrieved 26 May 2017.
- ^ Invitrogen Staff (6 April 2006). "The Alexa Fluor Dye Series". Probes.Invitrogen.com. Archived from the original on 15 August 2007. Retrieved 13 August 2007.