Patent ID: 8092815

Claim:
An article comprising a chitosan-silver complex, wherein the chitosan-silver complex is produced by a method comprising the sequential steps of: (a) dissolving 0.25 to 8.0% by weight chitosan in an acid solution; (b) adding a solution of a silver salt to the product of step (a); (c) adding water to the product of step (b), with stirring; (d) raising the pH of the product of step (c) to pH 7 to 8 by adding a basic solution; (e) filtering the product of step (d); (f) washing the filtered solids obtained in step (e) with water, (g) washing the solids of step (f) with acetonitrile; (h) drying the washed solids under vacuum to obtain the chitosan-silver complex; and (i) optionally, grinding the dried product of step (h) to a fine powder.