Add time:08/29/2019         Source:sciencedirect.com

Ternary core/shell CdSeS/ZnS-QDs coated with N-acetyl LACTOSAMINE (cas 13000-25-4) was prepared as a fluorescent probe to study the interactions of N-acetyl lactosamine and galectin-3. The synthesis of N-acetyl lactosamine was achieved through the ‘azidoiodoglycosylation’ method. The amount of ligand coated on QDs was determined by 1H NMR and ICP-OES. The interactions between carbohydrates and galectin-3 were measured using SPR. The results revealed that the affinity of galectin-3 with di- and multivalent N-acetyl lactosamine increased 20 and 184-fold, respectively. The prepared glyco-QDs could be used as an efficient fluorescent probe to study carbohydrates and galectin-3 interactions.

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