Nanoparticle coating of surfaces

C - Chemistry – Metallurgy – 08 – J

Patent

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C08J 7/04 (2006.01) C09D 5/46 (2006.01)

Patent

CA 2641117

A nanoparticle coated hydrogel may be formed by a method of electrospraying nanoparticles on to a hydrogel surface includes providing a drug and polymer combination in solvent to an inner capillary of a coaxial capillary spray nozzle. A coating with a drug that releases over time may be provided. Open and closed matrixes may be selectively formed to help modify time release periods.

La présente invention concerne un hydrogel recouvert de nanoparticules qui peut être formé par un procédé d'électro-pulvérisation de nanoparticules sur une surface d'hydrogel qui comprend la fourniture d'un médicament et d'une combinaison de polymères dans un solvant pour un capillaire entrant d'une buse de pulvérisation capillaire coaxiale. Un revêtement peut être fourni avec un médicament qui se libère dans le temps. Des matrices ouvertes et fermées peuvent être sélectivement formées pour aider à modifier les périodes de libération dans le temps.

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