Anti Inflammatory Membranes for Implantable Biosensors

Award Information
Agency:
Department of Health and Human Services
Amount:
$99,996.00
Program:
STTR
Contract:
1R41DK065457-01
Solitcitation Year:
N/A
Solicitation Number:
N/A
Branch:
N/A
Award Year:
2003
Phase:
Phase I
Agency Tracking Number:
DK065457
Solicitation Topic Code:
N/A
Small Business Information
Applied Tissue And Materials, Inc.
505 COAST BLVD S, STE 402, 505 COAST BLVD S, STE 402, La Jolla, CA, 92037
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
N/A
Principal Investigator
 LARS BJURSTEN
 (858) 456-7500
 LBURJSTEN@LJBI.ORG
Business Contact
Phone: (858) 456-1342
Research Institution
 LA JOLLA BIOENGINEERING INSTITUTE
 505 COAST BLVD SOUTH
SAN DIEGO, CA, 92037
 Domestic nonprofit research organization
Abstract
DESCRIPTION (provided by applicant): The prolonged inflammatory response to an implant is one of the primary causes for the failure to integrate implanted devices into tissue. The source of inflammation common to almost all implants is the foreign body response. Based on evidence in the literature and from our research team, the inflammatory response is mediated by the reactive oxygen species generated by macrophages, leukocytes, and the surrounding connective tissue. Based on our published findings, it is evident that titanium dioxide, even when present as surface coatings of polymeric biomaterials, has the ability to breakdown reactive oxygen species that have been identified as mediators of the inflammatory response. One device where the inflammatory response dramatically limits its clinical usefulness is the implanted glucose sensor. Here, there is a progressive loss of sensitivity caused by non-vascular fibrous tissue encapsulation. We propose to modify three different types of membranes used for implantable glucose sensors, by micropatterning coatings of titanium dioxide.

* information listed above is at the time of submission.

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