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Abstract

Grant Number:	1R43AI051751-01A2
PI Name:	FRANK, STEVEN R.
PI Email:	kenweil@ix.netcom.com
PI Title:
Project Title:	Biofilm Prevention and Treatment Device

Abstract: DESCRIPTION (provided by applicant): Biofilms account for over 80% of device related microbial infections in the body. They are highly resistant to antimicrobial agents and the body's immune system. They contaminate indwelling medical devices such as catheters and joint implants causing tens of thousands of deaths each year. Silver is a well-known antimicrobial. Anti-infective, passive silver coatings have been used on catheters and for burns. These passive coatings, however, cannot deliver a sustained dose to penetrate and kill multiple biofilms. This study proposes an active, iontophoretic, delivery system - Active Antisepsis (AA) - that electronically controls the dose and penetration of silver ions surrounding a treated medical device. This technology has been tested against S.aureus biofilm in a laboratory model. The AA not only killed the biofilm, it penetrated through the initial biofilm layer to kill a second layer of biofilm. In this study, AA will be tested on titanium, a common material used in various indwelling medical devices. Initial objectives include: Coating titanium test coupons with silver. Building a silver ion release controller based on previous prototypes. Testing the AA technology in comprehensive laboratory tests to assess the ability to kill multiple layers of infectious biofilms.

Thesaurus Terms:
antisepsis, biofilm, clinical biomedical equipment, disease /disorder prevention /control, dosage, drug delivery system, infection, microprocessor /microchip, surface coating, technology /technique development
catheterization, communicable disease, electronic pacemaker, implant, iontophoresis, prosthesis, silver
biotechnology

Institution:	ROSE BIOMEDICAL DEVELOPMENT CORPORATION
	4545 E 9TH AVE, STE 110
	DENVER, CO 802203902
Fiscal Year:	2003
Department:
Project Start:	15-SEP-2003
Project End:	31-AUG-2004
ICD:	NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES
IRG:	ZRG1

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