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THE OBJECTIVE IS TO DEMONSTRATE THE FEASIBILITY OF A MEMBRANE-SENSOR SYSTEM SUITABLE FOR USE IN A MINIATURE FIBEROPTIC POTASSIUM-ION SENSOR (OPTRODE) FOR CONTINUOUS MONITORING IN BODY FLUIDS.

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: N/A
Agency Tracking Number: 1511
Amount: $50,000.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1984
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
P.o. Box 971
Mercer Island, WA 98040
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 EDMOND GREEN
 PRINCIPAL SCIENTIST
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract

THE OBJECTIVE IS TO DEMONSTRATE THE FEASIBILITY OF A MEMBRANE-SENSOR SYSTEM SUITABLE FOR USE IN A MINIATURE FIBEROPTIC POTASSIUM-ION SENSOR (OPTRODE) FOR CONTINUOUS MONITORING IN BODY FLUIDS. POTASSIUM LEVELS ARE COMMONLY MONITORED DURING CARDIAC SURGERY, DIABETIC ACIDOSIS, RENAL FAILURES, AND OTHER ACUTE CONDITIONS. POTASSIUM LEVELS CAN BE VERY LABILE REQUIRING FREQUENT MEASUREMENTS WITH SUBSTANTIAL LABOR AND LAB CHARGES. A RELATIVELY INEXPENSIVE, DISPOSABLE, AND CONTINUOUS PROBE WOULD GIVE IMMEDIATE CLINICAL INFORMATION AND WOULD BE COST EFFECTIVE. THE SPECIFIC AIMS OF THE PHASE I PROJECT ARE: 1. SYNTHESIZE A DYE MOLECULE THAT IS SENSITIVE TO THE CONCENTRATION OF POTASSIUM-ION IN THE PATHO-PHYSIOLOGICAL RANGE. 2. DEVELOP A MEANS OF IMMOBILIZING THE K+ SENSOR DYE MOLECULE WITHIN A SEMIPERMEABLE MEMBRANE. 3. CONSTRUCT A WORKING MODEL OF THE FIBEROPTIC PROBE. 4. DETERMINE EFFECTIVENESS OF PROBE BY IN-VITRO ANALYSIS OF BODY FLUID WITH KNOWN K+ CONCENTRATIONS. THE LONGER TERM PHASE II OBJECTIVES ARE TO MINIATURIZE THE K+ PROBE AND COMBINE IT INTO A MULTIPARAMETER PROBE FOR MONITORING OF SEVERAL COMPONENTS SUCH AS 02, C02, AND PH.

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

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