Thursday, February 25, 2010

US Patent 7666494 - Metal nanoparticle transfer sheet

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.