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An Automated, High Throughput, Filter-Free Pathogen Preconcentrator

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911SR-10-C-0081
Agency Tracking Number: A10A-016-0112
Amount: $99,977.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: A10A-T016
Solicitation Number: 2010.A
Solicitation Year: 2010
Award Year: 2010
Award Start Date (Proposal Award Date): 2010-09-27
Award End Date (Contract End Date): 2011-03-30
Small Business Information
215 Wynn Dr., 5th Floor
Huntsville, AL 35805
United States
DUNS: 185169620
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: No
Principal Investigator
 Yi Wang
 Group Leader
 (256) 327-0678
Business Contact
 Deb Phipps
Title: Sr. Contract Specialist
Phone: (256) 726-4884
Research Institution
 RTI International
 Sonia Grego
3040 Cornwallis Road
Research Triangle Pk, NC 27709
United States

 (919) 248-4181
 Domestic Nonprofit Research Organization

Accurate real-time waterborne pathogen detection is of paramount importance to security of U.S. military forces and installations. Fieldable high-throughput pathogen concentration is a critical analytical need for enhanced detection performance. Existing concentration methods are time-consuming, bulky, labor-intensive, power- and reagent-hungry, and consequently ill-suited for battlefield deployment and on-site investigation. To overcome these limitations, we propose to develop and demonstrate a high-throughput, filter-free preconcentrator for automated enrichment of threat pathogens in water samples. The underlying principle of our preconcentrator is to form contactless exclusion barriers to pathogens by combining cross flow features and dielectrophoresis. Our technology enables order-of-magnitude improvement in throughput, concentration factor, and recovery efficiency and significant reduction in logistical burden and operating cost. In Phase I, we will design, fabricate, characterize and demonstrate a laboratory-scale prototype to establish proof-of-principle of the proposed technology. The preconcentrator designs will be optimized using high-fidelity simulation tools, and the fabricated device will be tested and demonstrated in our well-equipped bioengineering laboratories. In Phase II, a quarter-scale preconcentrator system with additional design refinements will be developed for enhanced performance, integrability and manufacturability. The preconcentrator will be integrated with COTS technologies for automated operation. The Phase II prototype will be demonstrated for continuous, long-term concentration of threat pathogens from composite sample matrix. Design requirements for full-scale system and compatibility to various detection technologies will be identified. The final product will be fully automated and filter-free with readily deployability in research and real environments.

* Information listed above is at the time of submission. *

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