US Patent 7745001 - Nanoassemblies containing qdots and magnetic nanoparticles

http://www.freepatentsonline.com/7745001.html

This patent from the University of New Orleans teaches a method to encapsulate luminescent quantum dots with magnetic nanoparticles enabling a biotag detectable by both optical and magnetic techniques. Claim 1 reads:

1. Luminescent and magnetic nanoassemblies comprising luminescent semiconductor quantum dots ("QDs") and magnetic nanoparticles, wherein components in the nanoassemblies are bound covalently.