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Apparatus to collect, classify, concentrate, and characterize gas-borne particles

United States Patent

December 16, 2003
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
An aerosol lab-on-a-chip (ALOC) integrates one or more of a variety of particle collection, classification, concentration (enrichment), an characterization processes onto a single substrate or layered stack of such substrates. By mounting a UV laser diode laser light source on the substrate, or substrates tack, so that it is located down-stream of the sample inlet port and at right angle the sample particle stream, the UV light source can illuminate individual particles in the stream to induce a fluorescence response in those particles having a fluorescent signature such as biological particles, some of said particles. An illuminated particle having a fluorescent signal above a threshold signal would trigger a sorter module that would separate that particle from the particle stream.
Rader; Daniel J. (Albuquerque, NM), Torczynski; John R. (Albuquerque, NM), Wally; Karl (Lafayette, CA), Brockmann; John E. (Albuquerque, NM)
Sandia National Laboratories (Livermore, CA)
10/ 137,983
April 30, 2002
STATEMENT OF GOVERNMENT INTEREST The United States Government has rights in this invention pursuan to Contract No. DE AC04-94AL85000 between the United States Department of Energy and the Sandia Corporation for the operation of the Sandia National Laboratories.