US Patent 7695988 - Spectral nanofluidic analysis

http://www.freepatentsonline.com/7695988.html

This patent from Cornell Research Foundation appears basic to the use of quantum dots in microfluidic analysis of biomolecules. Claim 1 reads:

1. A method comprising:

conjugating molecules with a plurality of different types of quantum dots having different emission spectra to form conjugates;

driving the conjugates through a sub-micrometer channel detection volume;

exciting the conjugates in the sub-micrometer channel; and

detecting emission from multiple regions of the spectrum.