Do the quantum dots undergo FRET, or quench when they are in close proximity?
We have not systematically investigated the energy transfer properties of the quantum dots, though the quantum dots may have useful properties as both energy transfer donors and acceptors. We have investigated the fluorescence of Qdot® 605 Streptavidin Conjugates that are coupled to each other through a bis-biotin linker, and found that the emission intensity of the materials was unperturbed at any concentration of biotin cross-linker. These results suggest that the interparticle quenching of these Qdot® Conjugates is negligible.
