Patent ID: 8029902

Claim:
A bactericidal substrate comprising: (a) a substrate having a surface; and (b) quaternary ammonium functionalized molecules covalently bound to the surface, wherein the quaternary ammonium functionalized molecules have the formula —(CH 2 ) n —CH(OH)—(CH 2 ) m —NR 1 R 2 R 3 , wherein n is an integer from 0 to 20, m is an integer from 1 to 20, and R 1 , R 2 and R 3 are independently selected from the group consisting of linear or branched alkyl groups, aryl groups, aralkyl groups, and alkyl, aryl or aralkyl groups substituted with a hydroxyl group or an alkoxy group, and further wherein the quaternary ammonium functionalized molecules are each directly covalently bonded to the surface at one end and terminated by a quaternary ammonium mgroup at the opposite end.