MagDot 610 nm PEG Coated


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The MagDot is a dual-purpose reagent, it combines quantum dots and superparamagnetic iron oxide particles within the same nanoparticle. Cells labeled with MagDots targeting specific antigens will be both fluorescent and magnetic. Therefore, after labeling cells of interest, one can look at the feed to determine the percent positive fluorescently via flow cytometry, and then place the labeled cells in a magnetic separator and analyze both the magnetic (for the enrichment) and the nonmagnetic (for the depletion) of targeted cells without the need for further fluorescent labeling.

Product Information

Hydrodynamic Diameter

120 ± 10 nm

Emission Wavelength

610 nm

Zeta Potential

+11 mV


24 nm


50 mM sodium borate,
100 mM sodium chloride

Quantum Yield

> 65 %

pH of Solution


QD Molar Concentration

6 uM


At 4 ˚C

Iron oxide Concentration

2 mg/mL

Shelf Life

1 year


0.25 mL

Characterization Instruments
1. Transmission Electron Microscopy Data – FEI Tecnai G2 Spirit
2. Hydrodynamic Size and Zeta Potential – NanoBrook 90 Plus
3. Spectral Properties – Evolution™ 201/220 UV-Visible Spectrophotometers Thermo Scientific™ and Varian Cary Eclipse Fluorescence Spectrophotometer



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