QD Products
Mesolight’s Water-soluble QDs
We provide high quality water-soluble gradient alloyed (GA) ZnSe/ZnS, CdS/ZnS, CdSe/ZnS, InP/ZnS, and PbS QDs. These QDs are coated by GSH(glutathione), MPA (3-Mercaptopropionic acid) or PEG (a special ligand we developed that make the QDs surface have 60-80% of polyethylene glycol groups, of which, 80% are end with OH group, and 20-40% with carboxyl functional group or primary amine functional groups for bio-conjugation with bio-molecules). 
GSH or MPA coated QDs typically have the hydrodynamic size of ~ 10-12 nm diameter, while PEG coated have ~ 20 nm. PEG coated QDs have much better performance than GSH or MPA coated in terms of stability and solubility — e.g. GSH coated QDs can be dissolved in neutral solution, MPA coated QDs can be dissolved in neutral or basic solution, but PEG coated show good solubility in a wider pH range from 5-11.
By default, we provide water-soluble QDs dispersed in water, typically 20 nM GSH or MPA coated QDs or 10 nM PEG coated QDs in 4 ml of water. Upon customer’s request, we also provide water-soluble QDs in solid states, which can be simply dissolved by adding water or buffer.
Shopping Cart
HMF_ZnSe/ZnS QDs
Quantum Yield
FWHM
Quality
Price
Quantity
Catalog
410±10 nmPEG-NH210 nmol $299
- +
ZnSe/ZnS-PEG-NH2-410
PEG-COOH10 nmol $299
- +
ZnSe/ZnS-PEG-COOH-410
MPA-COOH20 nmol $299
- +
ZnSe/ZnS-MPA-410
GSH20 nmol $299
- +
ZnSe/ZnS-GSH-410
430±10 nmPEG-NH210 nmol $299
- +
ZnSe/ZnS-PEG-NH2-430
PEG-COOH10 nmol $299
- +
ZnSe/ZnS-PEG-COOH-430
MPA-COOH20 nmol $299
- +
ZnSe/ZnS-MPA-430
GSH20 nmol $299
- +
ZnSe/ZnS-GSH-430
HMF_InP/ZnS QDs
Quantum Yield
FWHM
Quality
Price
Quantity
Catalog
540±25 nmPEG-COOH10 nmol $299
- +
InP/ZnS-PEG-COOH-540
PEG-NH210 nmol $299
- +
InP/ZnS-PEG-NH2-540
MPA-COOH20 nmol $299
- +
InP/ZnS-MPA-540
GSH20 nmol $299
- +
InP/ZnS-GSH-540
590±25 nmPEG-COOH10 nmol $299
- +
InP/ZnS-PEG-COOH-590
PEG-NH210 nmol $299
- +
InP/ZnS-PEG-NH2-590
MPA-COOH20 nmol $299
- +
InP/ZnS-MPA-590
GSH20 nmol $299
- +
InP/ZnS-GSH-590
640±25 nmPEG-COOH10 nmol $299
- +
InP/ZnS-PEG-COOH-640
PEG-NH210 nmol $299
- +
InP/ZnS-PEG-NH2-640
MPA-COOH20 nmol $299
- +
InP/ZnS-MPA-640
GSH20 nmol $299
- +
InP/ZnS-GSH-640
690±25 nmPEG-COOH10 nmol $299
- +
InP/ZnS-PEG-COOH-690
PEG-NH210 nmol $299
- +
InP/ZnS-PEG-NH2-690
MPA-COOH20 nmol $299
- +
InP/ZnS-MPA-690
GSH20 nmol $299
- +
InP/ZnS-GSH-690
GA_CdS/ZnS QDs
Quantum Yield
FWHM
Quality
Price
Quantity
Catalog
420±15 nmPEG-COOH10 nmol $299
- +
CdS/ZnS-PEG-COOH-420
PEG-NH210 nmol $299
- +
CdS/ZnS-PEG-NH2-420
MPA-COOH20 nmol $299
- +
CdS/ZnS-MPA-420
GSH20 nmol $299
- +
CdS/ZnS-GSH-420
450±15 nmPEG-COOH10 nmol $299
- +
CdS/ZnS-PEG-COOH-450
PEG-NH210 nmol $299
- +
CdS/ZnS-PEG-NH2-450
MPA-COOH20 nmol $299
- +
CdS/ZnS-MPA-450
GSH20 nmol $299
- +
CdS/ZnS-GSH-450
GA_CdSe/ZnS QDs
Quantum Yield
FWHM
Quality
Price
Quantity
Catalog
500±25 nmPEG-COOH10 nmol $299
- +
CdSe/ZnS-PEG-COOH-500
PEG-NH210 nmol $299
- +
CdSe/ZnS-PEG-NH2-500
MPA-COOH20 nmol $299
- +
CdSe/ZnS-MPA-500
GSH20 nmol $299
- +
CdSe/ZnS-GSH-500
520±25 nmPEG-COOH10 nmol $299
- +
CdSe/ZnS-PEG-COOH-520
PEG-NH210 nmol $299
- +
CdSe/ZnS-PEG-NH2-520
MPA-COOH20 nmol $299
- +
CdSe/ZnS-MPA-520
GSH20 nmol $299
- +
CdSe/ZnS-GSH-520
570±25 nmPEG-COOH10 nmol $299
- +
CdSe/ZnS-PEG-COOH-570
PEG-NH210 nmol $299
- +
CdSe/ZnS-PEG-NH2-570
MPA-COOH20 nmol $299
- +
CdSe/ZnS-MPA-570
GSH20 nmol $299
- +
CdSe/ZnS-GSH-570
620±25 nmPEG-COOH10 nmol $299
- +
CdSe/ZnS-PEG-COOH-620
PEG-NH210 nmol $299
- +
CdSe/ZnS-PEG-NH2-620
MPA-COOH20 nmol $299
- +
CdSe/ZnS-MPA-620
GSH20 nmol $299
- +
CdSe/ZnS-GSH-620
Upconverting Nanoparticles/UCNPs
Quantum Yield
FWHM
Quality
Price
Quantity
Catalog
475 nmPolymer-NH22 mg $199
- +
UCNP-Polymer-NH2-water-475
Polymer-COOH2 mg $199
- +
UCNP-Polymer-COOH-water-475
545 nmPolymer-COOH2 mg $199
- +
UCNP-Polymer-COOH-water-545
Polymer-NH22 mg $199
- +
UCNP-Polymer-NH2-water-545
800 nmPolymer-COOH2 mg $199
- +
UCNP-Polymer-COOH-water-800
Polymer-NH22 mg $199
- +
UCNP-Polymer-NH2-water-800
PbS QDs
Quantum Yield
FWHM
Quality
Price
Quantity
Catalog
900±50 nmPEG-COOH10 nmol $299
- +
PbS-PEG-COOH-900
PEG-NH210 nmol $299
- +
PbS-PEG-NH2-900
MPA-COOH20 nmol $299
- +
PbS-MPA-COOH-900
GSH20 nmol $299
- +
PbS-GSH-900
1000±50 nmPEG-COOH10 nmol $299
- +
PbS-PEG-COOH-1000
PEG-NH210 nmol $299
- +
PbS-PEG-NH2-1000
MPA-COOH20 nmol $299
- +
PbS-MPA-COOH-1000
GSH20 nmol $299
- +
PbS-GSH-1000
1100±50 nmPEG-COOH10 nmol $299
- +
PbS-PEG-COOH-1100
PEG-NH210 nmol $299
- +
PbS-PEG-NH2-1100
MPA-COOH20 nmol $299
- +
PbS-MPA-COOH-1100
GSH20 nmol $299
- +
PbS-GSH-1100
1200±50 nmPEG-COOH10 nmol $299
- +
PbS-PEG-COOH-1200
PEG-NH210 nmol $299
- +
PbS-PEG-NH2-1200
MPA-COOH20 nmol $299
- +
PbS-MPA-COOH-1200
1300±50 nmPEG-NH210 nmol $299
- +
PbS-PEG-NH2-1300
PEG-COOH10 nmol $299
- +
PbS-PEG-COOH-1300
MPA-COOH20 nmol $299
- +
PbS-MPA-COOH-1300
※We also provide samples with customer specified surface groups, solvent, concentration, and emission wavelength.