Patent ID: 8563612

Claim:
Antimicrobial agent comprising a substrate, wherein said substrate is a solid surface or a polymer bound to said solid surface by covalent binding or adsorption, with a covalently bound cysteine component, wherein said cysteine component is bound through an S—S bridge via a spacer molecule to the substrate, the spacer comprises a carbon chain, optionally interrupted by one or more heteroatoms, the chain is optionally substituted with one or more alkyl groups, wherein said cysteine component is cysteine, a cysteine analogue or a cysteine derivative, wherein said substrate is a part of a device, an apparatus and/or a surface selected from (a) a medical device or (b) a grocery device, wherein the S—S bridge comprises one S from the thiol group of the cysteine component and one S from the spacer.