PRODUCTION METHOD OF QUANTUM DOTS, FUNCTIONALIZED BY DENDRIMERS Russian patent published in 2017 - IPC C09K11/54 C09K11/88 B82B3/00 B82Y40/00 

FIELD: nanotechnology.

SUBSTANCE: invention relates to nanotechnologies. At first, the solution of quantum dots is obtained, based on the cadmium selenide in chloroform with its concentration 410-8⋅ M and is mixed with the solution of dendrimer in methanol so, that the molecular ratio of quantum dots to dendrimer is from 1: 700 to 1: 1100. The polyamidoamine dendrimer with the surface amino groups is used as dendrimer, for example, polyamidoamine of the 4th or the 5th generation. The quantum dots based on CdSe may be coated with the film from the other semiconductors, wherein the outer layer is of ZnS. The resulted mixture is to be washed with ethyl acetate twice by centrifuging, the supernatant is selected and the residue is dissolved in the solvent. The recieved quantum dots, functionalized by dendrimers, are characterized by high stability in aqueous media, a quantum yield of above 40% and are suitable for the further banding with biomolecules.

EFFECT: invention is a simple and economical way to produce quantum dots, functionalized by dendrimers.

4 cl, 10 ex