Microfluidic Yeast-based Impedance Sensor for Food Monitoring

Award Information
Agency: Department of Defense
Branch: Army
Contract: W81XWH-10-C-0191
Agency Tracking Number: O093-H24-3053
Amount: $99,916.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: OSD09-H24
Solicitation Number: 2009.3
Small Business Information
215 Wynn Dr., 5th Floor, Huntsville, AL, 35805
DUNS: 185169620
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Ketan Bhatt
 Research Engineer
 (256) 327-0666
Business Contact
 Deborah Phipps
Title: Senior Contracts Specialist
Phone: (256) 726-4884
Email: dap@cfdrc.com
Research Institution
Current methods for detecting toxicity in food are labor intensive, time-consuming and require access to sophisticated laboratory equipment. To overcome these limitations we propose to develop a novel, microfluidics yeast-based sensor system for detection of Toxic Industrial Chemicals (TICs) in food. Robust yeast cell wires and membrane patches will be assembled on-demand and in-situ from suspensions of genetically modified yeast cells and functionalized colloidal micro- and nano-particles using dielectrophoretic forces. Presence of TICs will be detected by monitoring the impedance changes of the cell wires and patches. During Phase I, proof-of-concept will be demonstrated for detection of TICs in flour, ground beef and milk samples spiked with arsenic, methamidophos and cyanide. A conceptual design for the Phase II end-product will be developed. During Phase II, the sensor technology will be demonstrated for multiple TICs of interest. The device functionality will be demonstrated for reliable operation through the range of environmental conditions (temperature, relative humidity, etc.) We have assembled an interdisciplinary team of engineers and scientists from CFDRC, UAHuntsville and NC State University with experience in microfluidics, colloid and nanoscale engineering, fungal and plant molecular biology and functional genomics, and sensor fabrication to successfully develop the proposed device.

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

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