Cy7 azide is a labeling reagent that ready for the use in Click Chemistry labeling. This labeling dye is a near-infrared dye which has low aqueous solubility. For biomolecule labeling, the labeling reagent has low aqueous solubility, using of organic co-solvent to dissolve this molecules is necessary for efficient reaction. First, Cyanine dye should be dissolved in organic solvent and then added to a solution of biomolecule in appropriate aqueous buffer. This product can be used for the incorporation of Cy7 azide into various biomolecules and post-synthetic modification of oligonucleotides is also available.
PEG-b-PPLG-Cy7 was conjugated by Cy7 azid and the polymer of PEG-b-PPLG. In blank micelles, it was used to probe the association of unimers [1].
Reference:
[1] Morton, S. W.; Zhao, X.; Quadir, M.A.; Hammond, P.T. FRET-enabled biological characterization of polymeric micelles. Biomaterials,2014, 35(11), 3489-3496.