Biocompatible quantum dots (QD) offer high photostability and high fluorescence with great long-term colloidal stability over a broad pH range. They are also accessible to simple and efficient bioconjugation techniques, such as EDC coupling and SMCC conjugation. The surface of the QDs is engineered to reduce non-specific binding for a variety of applications, such as sensing, cellular imaging, and F?rster Resonance Energy Transfer (FRET).   

Streptavidin Quantum Dots are a group of streptavidin conjugated, water soluble core/shell quantum dots. Biotinylated proteins, antibodies, nucleic acids or other ligands with biotin can be easily coupled to the QDs. Since QDs are nanosized particles, monobiotin labeled molecules are preferred in to keep the colloidal stability of the QDs after binding. Otherwise, Streptavidin Quantum Dots tends to aggregate. With excellent colloidal stability and unique surface coating, the streptavidin QDs exhibit high binding capacity and low non-specific binding.

Product Data Sheet-Streptavidin Quantum Dots.pdf