PREPARATION OF MICROBICIDAL URINARY TRACT CATHETERS

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$50,000.00
Award Year:
1991
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
16562
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Bio-metric Systems, Inc
9924 West Seventy Fourth Stree, T, Eden Prairie, MN, 55344
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Duran, Lise W
Principal Investigator
(612) 829-2700
Business Contact:
1 N43 DK12272-00
() -
Research Institution:
n/a
Abstract
CURRENTLY, ABOUT 10% OF THE HOSPITAL PATIENTS IN THE UNITED STATES RECEIVE IN-DWELLING URINARY CATHETERS, AND THESE CATHETERS LEAD TO OVER 400,000 CASES PER YEAR OF CATHETER-ASSOCIATED URINARY TRACT INFECTIONS. IN ADDITION, THESE CATHETERS IRRITATE URETHRAL SURFACES, CAUSING PAIN UPON INSERTION, LESIONS AFTER PROLONGED USE, AND ENHANCED COLONIZATION OF THE URETHRAL SURFACES BY BACTERIA. ADMINISTRATION OF ANTIBIOTICS IS OFTEN AN INEFFECTIVE TREATMENT; PREVENTION IS THE MOST PROMISING APPROACH TO DECREASING DEVICE-ASSOCIATED MICROBIAL INFECTIONS. ONE APPROACH TO PREVENTING BACTERIAL COLONIZATION IS BY ATTACHING MICROBICIDAL AGENTS TO THE DEVICE PRIOR TO IMPLANTATION. BIO-METRIC SYSTEMS, INC., HAS SUCCESSFULLY DERIVATIZED, PURIFIED, AND COVALENTLY IMMOBILIZED AN ANTIMICROBIAL PEPTIDE TO POLYSTYRENE AND PERFORMED PRELIMINARY ASSESSMENTS OF THE RETAINED MICROBICIDAL ACTIVITIES. THE PEPTIDE USED IN THIS STUDY, MAGAININ, HAS BROAD SPECTRUM ACTIVITY AGAINST A VARIETY OF COMMONLY OCCURRING INFECTIOUS ORGANISMS. PROOF-OF- CONCEPT FOR THE EFFECTIVENESS OF MAGAININ WAS DEMONSTRATED BY PREPARING MODIFIED SURFACES THAT RESIST COLONIZATION OF STAPHYLOCOCCUS EPIDERMIDIS AND ESCHERICHIA COLI, AS TESTED IN VITRO. IN THIS PROJECT, WE PLAN TO OPTIMIZE THE IMMOBILIZATION CHEMISTRY AND EXPLORE THE MICROBICIDAL ACTIVITY OF COATED URINARY TRACT CATHETER MATERIALS IN VITRO. SPECIFIC PHASE I OBJECTIVES ARE TO UTILIZE RUBBER LATEX AND SILICONE RUBBER URINARY CATHETERS (AS THE TWO MOST COMMONLY USED CATHETER MATERIALS) AND: 1) IMMOBILIZE ANTIMICROBIAL PEPTIDE ONTO EACH CATHETER TYPE; 2) MEASURE INHIBITION OF BACTERIA COLONIZATION; AND 3) BEGIN DEVELOPING PROCEDURES TO INCORPORATE LUBRICOUS COATINGS AS WELL AS MICROBICIDAL REAGENTS ON SUBSTRATE SURFACE. PHASE II STUDIES WILL INCLUDE IN VITRO AND IN VIVO ASSAYS FOR ANTIMICROBIAL ACTIVITY, LUBRICITY, TISSUE DAMAGE AND DEPOSITION OF ENCRUSTING MATERIALS.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government