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| Color | mass (g/mol) | Absorb (nm) | Emit (nm) | ε (M−1cm−1) | |
|---|---|---|---|---|---|
| DyLight 350 | violet | 874 | 353 | 432 | 15,000 |
| DyLight 405 | violet | 793 | 400 | 420 | 30,000 |
| DyLight 488 | green | 1011 | 493 | 518 | 70,000 |
| DyLight 550 | yellow | 982 | 562 | 576 | 150,000 |
| DyLight 594 | orange | 1078 | 593 | 618 | 80,000 |
| DyLight 633 | red | 1066 | 638 | 658 | 170,000 |
| DyLight 650 | red | 1008 | 654 | 673 | 250,000 |
| DyLight 680 | far-red | 950 | 692 | 712 | 140,000 |
| DyLight 755 | near-IR | 1092 | 754 | 776 | 220,000 |
| DyLight 800 | near-IR | 1050 | 777 | 794 | 270,000 |
| Reference:[1][2][3] | |||||
The DyLight Fluor family of fluorescent dyes are produced by Dyomics in collaboration with Thermo Fisher Scientific.[4] DyLight dyes are typically used in biotechnology and research applications as biomolecule, cell and tissue labels for fluorescence microscopy, cell biology or molecular biology.
Applications
editHistorically, fluorophores such as fluorescein, rhodamine, Cy3 and Cy5 have been used in a wide variety of applications. These dyes have limitations for use in microscopy and other applications that require exposure to an intense light source such as a laser, because they photobleach quickly (however, bleaching can be reduced at least 10 fold using oxygen scavenging). DyLight Fluors have comparable excitation and emission spectra and are claimed to be more photostable, brighter, and less pH-sensitive. The excitation and emission spectra of the DyLight Fluor series cover much of the visible spectrum and extend into the infrared region, allowing detection using most fluorescence microscopes, as well as infrared imaging systems.[1][2]
Synthesis
editDyLight Fluors are synthesized through sulfonate addition to coumarin, xanthene (such as fluorescein and rhodamine), and cyanine dyes. Sulfonation makes DyLight dyes negatively charged and hydrophilic. DyLight Fluors are commercially available as reactive succinimidyl-esters for labeling proteins through lysine residues, and as maleimide derivatives for labeling proteins through cysteine residues. Antibodies conjugated are also available from several companies.
Alternatives
editSimilar lines of fluorescent dyes provide an alternative to the DyLight Dyes (see also the list in Category:Fluorescent dyes).
References
edit- ^ a b "DyLight Fluors - Technology and Product Guide". Pierce Protein Research Products. 2011. Archived from the original on 2013-10-17. Retrieved 2013-10-17.
- ^ a b "DyLight Reactive Dyes". Pierce Protein Research Products. 2008. Retrieved 2013-10-17.
- ^ "DyLight Reactive Dyes". Pierce Protein Research Products. Retrieved 2014-09-10.
- ^ "Fisher Biosciences Collaborates with Dyomics to Add Fluorescent Reagents for Protein Research". Press release. BNET. 2006-01-09. Retrieved 2008-12-09.