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US 12,208,177 B2Granted
Anti-microbial coating for objects such as prosthetic implants
AssigneeNational University of Ireland, Galway
InventorsFiras Awaja, Giorgio Speranza
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AssigneeNational University of Ireland, Galway
InventorsFiras Awaja, Giorgio Speranza
Estimating the term…
A method of providing an anti-microbial coating on an object, comprises the steps of pre-treating the object in a first oxygen plasma to graft oxygen-based functional groups on the surface of the object by plasma enhanced chemical vapour deposition, coating the pre-treated object with a suspension of particulate graphene oxide to provide a graphene oxide coating on the object, treating the object in a hydrocarbon plasma to deposit an amorphous hydrocarbon film on the graphene oxide coating by plasma enhanced chemical vapour deposition, and treating the object in a second oxygen plasma configured to etch and flatten the coatings on the surface of the object. A prosthetic implant having a metal or metal alloy surface and an anti-microbial coating on all or part of the surface is also described.
An implant having a metal or metal alloy surface and an anti-microbial coating on all or part of the surface, the coating comprising an inner film of grafted oxygen-based functional groups, a coating of graphene oxide adhered to the inner film, and a stabilising coating of amorphous hydrocarbon adhered to the graphene oxide coating, in which the coating comprises a discontinuous amorphous hydrocarbon film with pockets of exposed graphene oxide.
An object having a metal or metal alloy surface and an anti-microbial coating on all or part of the surface, the coating comprising an inner film of grafted oxygen-based functional groups, a coating of graphene oxide adhered to the inner film, and a stabilising coating of amorphous hydrocarbon adhered to the graphene oxide coating, in which the coating comprises a discontinuous amorphous hydrocarbon film with pockets of exposed graphene oxide.
An object having a polymer surface and an anti-microbial coating on all or part of the surface, the coating comprising an inner film of grafted oxygen-based functional groups, a coating of graphene oxide adhered to the inner film, and a stabilising coating of amorphous hydrocarbon adhered to the graphene oxide coating, in which the coating comprises a discontinuous amorphous hydrocarbon film with pockets of exposed graphene oxide.
Dependencies are inferred from the claim text.