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PEG QMG is a group of water soluble CdSSe/ZnS or CdSe/ZnS quantum dots with amphiphilic polymer and PEG coating. There is not any surface functional group on the surface of the nanocrystals. The zeta potential of QMG is from -10mV to 0. The thickness of the total organic layers is about 6 nm. The hydrodynamic size of the nanocrystals is about 12-14 nm larger than their inorganic core size measured by TEM. The colloidal stability of QMG is exceptionally high. It is stable in most buffer solutions in the pH range of 3-14. Product Name Description Pricing QMG-525 CdSSe/ZnS Quantum Dots w/PEG Coating, 525 nm Pricing QMG-620 CdSSe/ZnS Quantum Dots w/PEG Coating, 620 nm Pricing QMG-450 CdSSe/ZnS Quantum Dots w/PEG Coating, 450 nm Pricing QMG-580 CdSSe/ZnS Quantum Dots w/PEG Coating, 580 nm Pricing QMG-540 CdSSe/ZnS Quantum Dots w/PEG Coating, 540 nm Pricing QMG-665 CdSSe/ZnS Quantum Dots w/PEG Coating, 665 nm Pricing QMG-490 CdSSe/ZnS Quantum Dots w/PEG Coating, 490 nm Pricing QMG-645 CdSSe/ZnS Quantum Dots w/PEG Coating, 645 nm Pricing QMG-600 CdSSe/ZnS Quantum Dots w/PEG Coating, 600 nm Pricing