US Patent 7666494 - Metal nanoparticle transfer sheet

http://www.freepatentsonline.com/7666494.html

Arrays of metal nanoparticles have been used in applications such as Surface Enhanced Raman Spectroscopy, magnetic storage, and as catalysts for the formation of nanowires or nanotubes on a substrate. This patent from 3M teaches an article to facilitate the transfer of metal nanoparticles onto substrates. Claim 1 reads:

1. An article comprising a microporous membrane and a discontinuous non-conductive coating of metallic nanoparticles directly thereon wherein the metallic nanoparticles comprise individual particles or agglomerates of particles having an average major dimension of 1 to 50 nm.