Description
Cd Free Quantum Dots are composed of CuInZnS cores surrounded by a shell of ZnS. These CuInZnS/ZnS nanocrystals are offered as an alternative to Cd based quantum dots (QDs) where potential toxicity is a concern. NOM CuInZnS/ZnS QDs provide the high brightness, strong optical absorbance over a wide excitation wavelength range, and photostability characteristic of all quantum dots. The emission bandwidths of the Cd free QDs are wider than Cd based QDs but are less than 100 nm for all wavelengths.
Three different water soluble forms are coated with hydrophilic surfactants to achieve dispersion in water. The three different water soluble forms have surfactant terminal end groups that are either a carboxylic acid (-COOH), a primary amine amine (-NH2), or a diol (-CHOH-CH2OH). These coatings allow covalent bonding of the QDs to a variety of molecular probes for many fluorescent labeling applications.
The following water soluble CuInZnS/ZnS core/shell Quantum Dots are in stock in the acid, amine, and diol coated forms. Pricing begins at $299 for 10 mg. Click links below to see specifications and spectra.
Available CuInZnS/ZnS Core/Shell Water Soluble Quantum Dots
| Product Code | Emission Peak Center (nm) ± 10 nm | Coating and Functional Group |
| CIZS540-WS-XX | 540 | Thiol molecule terminated with Acid, Amine or Diol |
| CIZS560-WS-XX | 560 | Thiol molecule terminated with Acid, Amine or Diol |
| CIZS580-WS-XX | 580 | Thiol molecule terminated with Acid, Amine or Diol |
| CIZS600-WS-XX | 600 | Thiol molecule terminated with Acid, Amine or Diol |
| CIZS620-WS-XX | 620 | Thiol molecule terminated with Acid, Amine or Diol |
| CIZS640-WS-XX | 640 | Thiol molecule terminated with Acid, Amine or Diol |
| CIZS660-WS-XX | 660 | Thiol molecule terminated with Acid, Amine or Diol |
XX = AC for acid coated, AM for amine coated, OH for diol coated
Reviews
There are no reviews yet.