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Introduction to Quasar®Dyes

Quasar® Dyes

SureLight® APC

SureLight® R-PE

SureLight® B-PE

‘Black Hole Quencher,’ and ‘Quasar’ are trademarks of and licensed by Biosearch Technologies, Inc., Novato, CA. The BHQ, CAL Fluor, and Quasar dye technology is the subject of existing or pending patents including US Patent No. 7,019,129 and is licensed and sold under agreement with Biosearch Technologies, Inc. Products incorporating this technology are to be used for research and development only and their use in any in vitro diagnostic application is strictly prohibited without the express written permission of Biosearch Technologies, Inc.

qdyespectra
Spectra reference sheet

Columbia Biosciences offers Quasar® dyes that are direct, cost-effective replacements for the Cy™3, Cy™5 and other small organic dyes.

These advanced dyes have been modified to make them more water soluble than other organic dyes. Thisenhanced compatibility with protein-labeling methods provides a consistently-labeled, more stable conjugate with enhanced signal-to-background.

Benefits:
  • Greater sensitivity
  • Enhanced shelf-life
  • Less non-specific binding
  • Reduced sample consumption
  • Reduced cost-per-assay
  • Reduced false positives and negatives
Use in:

TR-FRET

  • Q570WS for Terbium
  • Q670WS for Europium
  • Flow
    Cytometry
    Fluorescence
    Microscopy

     


    Quasar® 570WS
    Comparable excitation/emission to phycoerythrin, Cy™3, and Alexa Fluor® 546.
    Quasar® 670WS
    Comparable excitation/emission to allophycocyanin, Cy™5, and Alexa Fluor® 647.
     
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