Patent ID: 7935540
Filing Date: 2011-05-03
Classification: C23C,Y10S

Abstract:
1. An article comprising a water-soluble polymer substrate and a discontinuous coating of vapor deposited metallic nanoparticles thereon, wherein said water-soluble polymer is selected from the group consisting of vinyl alcohol polymers, poly(aspartic acid), poly(acrylic acid), poly(methacrylic acid), poly(vinyl pyrrolidone), poly(alkylene oxide)s, poly(vinyl methyl ether), sulfonated polyesters, complex carbohydrates, guar gum, gum arabic, gum tragacanth, larch gum, gum karaya, locust bean gum, agar, alginates, caragheenan, pectins, cellulose derivatives, and combinations thereof, wherein the absorption peak maximum of said article shifts at least 10 nm as the water-soluble polymer substrate is further stretched or shrunk.