Wednesday, July 27, 2011

US Patent 7985367 - Glass nanoparticles by laser ablation

This patent from the Regents of the University of California includes some basic claims to the production of glass nanoparticles useful to the production of bioassays and LEDs. Claim 1 reads:

1. A method for producing active glass nanoparticles, comprising

subjecting an active glass substrate material to a plurality of laser generated light pulses; and

collecting nanoparticles ejected from said substrate material;

wherein said nanoparticles exhibit upconversion luminescence.