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2 509 057

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IPC

C01F11/18(2006-01-01)

C09K11/00(2006-01-01)

B01J13/22(2006-01-01)

B82B3/00(2006-01-01)

B82Y5/00(2011-01-01)

B82Y30/00(2011-01-01)

B82Y40/00(2011-01-01)

(21) (22)

Application

2012110816/05, 2012-03-22

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Start date

2012-03-22

(22)

Actual filing date

2012-03-22

(45)

Published

2014-03-10

(72)

Inventor

Sukhanova Tat'Jana VladimirovnaSizova Svetlana ViktorovnaManokhina Veronika VladimirovnaShchapov Aleksandr FedorovichOlejnikov Vladimir AleksandrovichNabiev Igor' Rufailovich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Uchrezhdenie Nauki Institut Bioorganicheskoj Khimii Im. Akademikov M.M. Shemjakina I Ju.A. Ovchinnikova Rossijskoj Akademii Nauk Ran)Federal'Noe Gosudarstvennoe Avtonomnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Natsional'Nyj Issledovatel'Skij Jadernyj Universitet Mifi Mifi)

METHOD OF INSERTING QUANTUM DOTS INTO POROUS CALCIUM CARBONATE PARTICLES BY CODEPOSITION Russian patent published in 2014 - IPC C01F11/18 C09K11/00 B01J13/22 B82B3/00 B82Y5/00 B82Y30/00 B82Y40/00

Abstract RU 2509057 C2

FIELD: chemistry.

SUBSTANCE: porous calcium carbonate particles are formed from the reaction CaCl₂+2NaHCO₃→CaCO₃↓+2NaCl+2H⁺, wherein an aqueous solution of quantum dots, modified with an excess amount of mercaptoacetic having concentration of 0.05-4 mg/ml, is added to 0.3 M NaHCO₃ solution while stirring intensely. The obtained suspension which contains porous calcium carbonate particles with inserted quantum dots is washed 1-3 times with water and once with ethanol, while treating with ultrasound after each washing. The obtained particles are then coated with polyethyleneimine or 6 layers of water-soluble polyelectrolytes from a series which includes diethylaminoethyl-dextran, chitosan, carrageenan.

EFFECT: shorter time for producing porous calcium carbonate particles with 100% inserted quantum dots.

2 cl, 6 ex

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RU 2 509 057 C2

Authors

Sukhanova Tat'Jana Vladimirovna

Sizova Svetlana Viktorovna

Manokhina Veronika Vladimirovna

Shchapov Aleksandr Fedorovich

Olejnikov Vladimir Aleksandrovich

Nabiev Igor' Rufailovich

Dates

2014-03-10—Published

2012-03-22—Filed