CdTe Quantum Dots, powder, hydrophilic

Luminescent inorganic nanocrystals (Q-dots). The emission wavelength is a function of the crystal size -crystals of the same chemistry can have the emission maxima in a wide range.Easily forms colloidal solutions in water. Terminated with -COOH group.Ideal for labeling purposes. Coupling with -NH2 groups can be achieved through EDC-mediated esterefication.

General labeling procedure for proteins :-
(adopted from Wang et al. Nanoletters 2002, vol. 2, No. 8, 817-822):Reaction mixture containing 0.1 µM/mL CdTe quantum dots, 2 mg/mL protein, 1 mg/ mL sulfo-NHS (CAS# 106627-54-7), 10 mg/mL EDC (CAS# 25952-53-8) in pH 7.0 PBS buffer is prepared and stored for 2-4 h at room temperature and then stored at 4°C overnight.The precipitate (unconjugated Q-dots) if any is removed by centrifugation. The stock of ready-to-use product should be stored at 4°C. Optionally it can be dyalized on a membrane with MWCO of 12000-14000 against pH 7.0 PBS buffer and stored at 4°C. Emission wavelength may slightly shift after labeling procedure..

Properties
510 ± 5 nm λ emission maximum. Particles molar weight ca. 3200 g/mol
Pack Sizes
Catalogue No.Quantity
RN -PL -QDN-510-5mg5mg
RN -PL -QDN-510-10mg10mg
RN -PL -QDN-510-25mg25mg
RN -PL -QDN-510-50mg50mg
Properties
520 ± 5 nm λ emission maximum. Particles molar weight ca. 16000 g/mol
Pack Sizes
Catalogue No.Quantity
RN -PL -QDN-520-5mg5mg
RN -PL -QDN-520-10mg10mg
RN -PL -QDN-520-25mg25mg
RN -PL -QDN-520-50mg50mg
Properties
530 ± 5 nm λ emission maximum. Particles molar weight ca. 20000 g/mol
Pack Sizes
Catalogue No.Quantity
RN -PL -QDN-530-5mg5mg
RN -PL -QDN-530-10mg10mg
RN -PL -QDN-530-25mg25mg
RN -PL -QDN-530-50mg50mg
Properties
540 ± 5 nm λ emission maximum. Particles molar weight ca. 25000 g/mol
Pack Sizes
Catalogue No.Quantity
RN -PL -QDN-540-5mg5mg
RN -PL -QDN-540-10mg10mg
RN -PL -QDN-540-25mg25mg
RN -PL -QDN-540-50mg50mg
Properties
550 ± 5 nm λ emission maximum. Particles molar weight ca. 32000 g/mol
Pack Sizes
Catalogue No.Quantity
RN -PL -QDN-550-5mg5mg
RN -PL -QDN-550-10mg10mg
RN -PL -QDN-550-25mg25mg
RN -PL -QDN-550-50mg50mg
Properties
560 ± 5 nm λ emission maximum. Particles molar weight ca. 55000 g/mol
Pack Sizes
Catalogue No.Quantity
RN -PL -QDN-560-5mg5mg
RN -PL -QDN-560-10mg10mg
RN -PL -QDN-560-25mg25mg
RN -PL -QDN-560-50mg50mg
Properties
570 ± 5 nm λ emission maximum. Particles molar weight ca. 59000 g/mol
Pack Sizes
Catalogue No.Quantity
RN -PL -QDN-570-5mg5mg
RN -PL -QDN-570-10mg10mg
RN -PL -QDN-570-25mg25mg
RN -PL -QDN-570-50mg50mg
Properties
580 ± 5 nm λ emission maximum. Particles molar weight ca. 67000 g/mol
Pack Sizes
Catalogue No.Quantity
RN -PL -QDN-580-5mg5mg
RN -PL -QDN-580-10mg10mg
RN -PL -QDN-580-25mg25mg
RN -PL -QDN-580-50mg50mg
Properties
590 ± 5 nm λ emission maximum. Particles molar weight ca. 71000 g/mol
Pack Sizes
Catalogue No.Quantity
RN -PL -QDN-590-5mg5mg
RN -PL -QDN-590-10mg10mg
RN -PL -QDN-590-25mg25mg
RN -PL -QDN-590-50mg50mg
Properties
600 ± 5 nm λ emission maximum. Particles molar weight ca. 76000 g/mol
Pack Sizes
Catalogue No.Quantity
RN -PL -QDN-600-5mg5mg
RN -PL -QDN-600-10mg10mg
RN -PL -QDN-600-25mg25mg
RN -PL -QDN-600-50mg50mg

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