Contact-killing antimicrobial devices
First Claim
1. A method of killing microorganisms comprising the steps of:
- providing a substrate having disposed thereon a contact-killing, non-leaching antimicrobial coating, said coating comprising an organic polycationic polymer matrix having bound or complexed thereto a surface-accessible antimicrobial metallic material such that the antimicrobial coating does not release biocidal amounts of elutables into the surrounding environment; and
facilitating contact between the coating and the microorganism to permit direct transfer of the antimicrobial metallic material to the microorganism in an amount sufficient to kill the microorganism.
2 Assignments
0 Petitions
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.
154 Citations
12 Claims
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1. A method of killing microorganisms comprising the steps of:
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providing a substrate having disposed thereon a contact-killing, non-leaching antimicrobial coating, said coating comprising an organic polycationic polymer matrix having bound or complexed thereto a surface-accessible antimicrobial metallic material such that the antimicrobial coating does not release biocidal amounts of elutables into the surrounding environment; and facilitating contact between the coating and the microorganism to permit direct transfer of the antimicrobial metallic material to the microorganism in an amount sufficient to kill the microorganism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification