US Patent 7914850 - Drip drop deposition of nanostructures

http://www.freepatentsonline.com/7914850.html

This patent proposes a methodology of forming zinc oxide or carbon nanostructures on a variety of different substrates in a short time based on the Leidenfrost effect. Claim 1 reads:

1. A method for producing nanostructures on a substrate comprising:

dripping drops of a solution of nanostructure forming material in water onto said substrate,

wherein the temperature of the substrate is above a temperature at which a drop of the solution is initially suspended on a vapor cushion when applied via dripping onto the substrate, and

forming nanostructures when the drops evaporate.