Qdot Nanocrystals

Invitrogen Corporation (USA)

“Qdot nanocrystals are nanometer-scale (roughly protein-sized) atom clusters, containing from a few hundred to a few thousand atoms of a semiconductor material (cadmium mixed with selenium or tellurium), which has been coated with an additional semiconductor shell (zinc sulfide) to improve the optical properties of the material.”
“The many benefits they bring to fluorescence methodology include: Long-term photostability for live-cell imaging and dynamics studies; Fixability for follow-up immunofluorescence from in vivo studies; Archivability for permanent sample storage in pathology; Brilliant colors for simple, single-excitation source, multicolor analysis”
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