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Abstract

Abstract: 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

Thesaurus Terms:
bacterial disease, biomedical equipment development, blood bank /supply contamination, communicable disease diagnosis, diagnosis design /evaluation, electron optics, immunofluorescence technique, monitoring device
bioassay, consumable /disposable biomedical equipment, diagnosis procedure safety, fluidity, miniature biomedical equipment

Institution:	RESEARCH INTERNATIONAL, INC.
	WOODINVILLE, WA 980728523
Fiscal Year:	2002
Department:
Project Start:	01-APR-2002
Project End:	30-SEP-2002
ICD:	NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES
IRG:	ZRG1