US Patent 8030784 - Semiconductor nanoparticle surface modification

http://www.freepatentsonline.com/8030784.html

This patent from Hitachi includes some broad claims for surface treated semiconductor nanoparticles to provide improved stability and durability. Claim 1 reads:

1. A modified semiconductor nanoparticle, which is modified with a functional group-containing polymer which is electrostatically bound to a semiconductor nanoparticle to form a modified semiconductor.