Coated nanoparticles

Details Coated nanoparticles Coated nanoparticles

C - Chemistry, Metallurgy

30

B

C30B 31/04 (2006.01) A61K 49/18 (2006.01) C30B 7/14 (2006.01) G01N 33/543 (2006.01) G01N 33/58 (2006.01) H01F 1/00 (2006.01)

Patent

CA 2410023

Disclosed are silica-coated nanoparticles and a process for producing silica- coated nanoparticles. Silica-nanoparticles are prepared by precipitating nano- sized cores from reagents dissolved in the aqueous compartment of a water-in- oil microemulsion. A reactive silicate is added to coat the cores with silica. Also disclosed are methods for functionalizing silica-coated nanoparticles for use in a variety of applications.

L'invention concerne des nanoparticules enrobées de silice et un procédé de production de ces nanoparticules. Des nanoparticules à base de silice sont préparées par précipitation de noyaux de taille nanométrique à partir de réactifs dissous dans le compartiment aqueux d'une microémulsion eau dans huile. Un silicate réactif est ajouté en vue d'enrober les noyaux avec de la silice. L'invention concerne des procédés de fonctionnalisation des nanoparticules enrobées de silice en vue d'une utilisation dans une variété d'applications.

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