Contact-killing antimicrobial devices
First Claim
1. An article of manufacture comprising an adherent antimicrobial coating comprising a nitrogen-containing polycationic polymer matrix immobilized on a surface of the article of manufacture, and an antimicrobial metallic material bound to the matrix such that the antimicrobial coating does not release biocidal amounts of elutables into the surrounding ambient liquid for at least 5 days.
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Accused Products
Abstract
Contact killing antimicrobial articles, devices and formulations are described which kill microorganisms on contact. The articles, devices or formulations contain a non-leaching antimicrobial material which is a unique combination of an organic matrix having biocidal metallic materials non-leachably associated with the matrix. The antimicrobial material may used to form an antimicrobial coating or layer on a surface of the article or device, or may be dispersed in a vehicle or carrier to form a topical antiseptic or disinfectant, or solid shape having contact killing antimicrobial properties. When a microorganism contacts the article, device, or formulation, the biocidal metallic material is transferred to the microorganism in amounts sufficient to kill it.
45 Citations
19 Claims
- 1. An article of manufacture comprising an adherent antimicrobial coating comprising a nitrogen-containing polycationic polymer matrix immobilized on a surface of the article of manufacture, and an antimicrobial metallic material bound to the matrix such that the antimicrobial coating does not release biocidal amounts of elutables into the surrounding ambient liquid for at least 5 days.
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17. An article of manufacture comprising an adherent antimicrobial coating comprising a nitrogen-containing polycationic polymer matrix immobilized on a surface of the article of manufacture by covalent bonding, ionic interaction, coulombic interaction, hydrogen bonding, or cross-linking, and
an antimicrobial metallic material bound or attached to the matrix such that the antimicrobial coating does not release biocidal amounts of elutables into the surrounding ambient liquid for at least 5 days.
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18. An article of manufacture comprising an adherent antimicrobial coating comprising a nitrogen-containing polycationic polymer matrix immobilized on a surface of the article of manufacture, the nitrogen-containing polycationic polymer matrix being functionalized to enable immobilization on the surface, and
an antimicrobial metallic material bound to the matrix such that the antimicrobial coating does not release biocidal amounts of elutables into the surrounding ambient liquid for at least 5 days.
Specification