Deposition of a silver layer on a nonconducting substrate

摘要

Methods for the deposition of silver-comprising films on nonconducting substrates, and, more particularly, to deposition of such films that are very thin, are provided. The surface of nonconducting substrates is modified with a superabsorbent polymer to increase silver deposition when compared to a non-modified surface. Also provided are films produced using a swelling agent, whereby porosity of the surface of the nonconducting substrate is increased, thereby permitting increased silver deposition when compared to an unmodified surface.

主权项

1. A method for preparing an antimicrobial medical device, comprising:
providing a nonconducting material; treating a surface of the nonconducting material by depositing a superabsorbent polymer on the surface, wherein the superabsorbent polymer is deposited on the surface from an aqueous solution of a cross-linked C10-30 alkyl acrylate copolymer; depositing silver metal by exposing the treated surface to an aqueous solution of a silver salt in a presence of a deposition control agent; and treating the silver metal with a stabilizing amount of one or more metals selected from the group comprising platinum group metals and gold, whereby an adhesive, thin, uniform, transparent, antimicrobial, biocompatible coating comprising silver metal is obtained.