Patent ID: 7300673
Filing Date: 2007-11-27
Classification: A01N,A61L,B05D,C23C,Y10T

Abstract:
1. A method for producing a composite material comprising a substrate and a deposition product, the method comprising the following steps: (a) providing a deposition solution comprising an amount of an aqueous solution of a silver salt comprised of an amount of silver ions and an amount of an oxidizing agent, wherein the silver salt is comprised of silver nitrate, wherein the oxidizing agent is comprised of a persulfate, wherein a concentration of the silver salt in the deposition solution is between about 1 gram per liter and about 20 grams per liter, wherein a concentration of the oxidizing agent in the deposition solution is between about 1 gram per liter and about 50 grams per liter, and wherein the deposition solution has a pH below 7; (b) producing the deposition product by facilitating a chemical reaction in the deposition solution between the silver ions and the oxidizing agent while maintaining the deposition solution at a temperature of between about 2 degrees Celsius and about 40 degrees Celsius, wherein the deposition product consists essentially of at least one oxidized silver species, and wherein the deposition product is comprised of a compound having the formula Ag (c) providing the substrate, wherein the substrate is a medical device; and (d) contacting the substrate with the deposition solution during the deposition product producing step (b), thereby producing the composite material.