Rapid Detection of Bacteria in Blood and Platelets

Period of Performance: 04/01/2002 - 09/30/2002


Phase 1 SBIR

Recipient Firm

Research International, Inc.
17161 Beaton Road SE
Monroe, WA 98272
Principal Investigator


DESCRIPTION (Provided by applicant): The ultimate goal of the program initiated with this proposal is the production of an instrument that can detect bacterial contamination of blood products immediately prior to use. This Phase I project will produce the prototype of a miniaturized bioassay system capable of simultaneously detecting the presence of 8 different bacteria at concentrations less than 1,000 CFU/ml in a single sample of less than 1 ml volume in 5 to 10 minutes. Operating costs are anticipated to be about $1.00 per analyte. Research International has recently discovered a unique and novel class of optical wave-guide shapes that are topologically ideal substrates for performing array-based fluoroimmunoassays. These unique wave-guides and associated fluidic controls will be designed as integral, molded-in components of a disposable plastic assay coupon. Storage of lyophilized reagents onboard the coupon will provide for a self-contained, single-use disposable as the only item that touches the sample The specific aims for Phase I are: Hardware: Design and build a prototype 4-channel waveguide and coupon. Design and build prototype opto-electronics and fluidics. Biochemistry: Demonstrate a method for applying antibodies to the waveguide. Develop assay protocols for two bacteria, one in platelets, one in RBCs Testing: Demonstrate a functional prototype system. PROPOSED COMMERCIAL APPLICATION: NOT AVAILABLE