Delivery means
OwnerNicholas John Crowther, Donald Eaglandinventors
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Abstract
A delivery means, for example a dressing, for delivering an antibacterial metal, for example silver, comprises the metal in combination with a hydrophilic polymer. The polymer may be cross-linked by a butylidene polymer to define a gel. In the examples, silver nitrate may be reduced to metallic silver, protected using polyvinylalcohol which is cross-linked to define a gel.
Claims27
A delivery means for delivering a deliverable material, said delivery means comprising a deliverable material and a protection means for protecting the deliverable material.
(canceled)
A delivery means for delivering a deliverable material, said delivery means comprising a deliverable material and a protection means for protecting the deliverable material, wherein said deliverable material comprises silver, gold or platinum and said protection means comprises an optionally derivatised polyvinyl alcohol.
A delivery means for delivering a deliverable material, said delivery means comprising a deliverable material and a protection means for protecting the deliverable material, wherein said deliverable material comprises colloidal particles of silver, gold or platinum, wherein said protection means restricts oxidation of the deliverable material and comprises a protective layer around the particles of deliverable material and wherein said protection means comprises an optionally derivatised polyvinyl alcohol.
Dependencies are inferred from the claim text.