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Antimicrobial Coating for Biofilm Inhibition

Antimicrobial Coating for Biofilm Inhibition
用于抑制生物膜的抗菌涂层
批准号:
6485882
负责人:
H. RALPH RAWLS
金额:
$10.0万
依托单位国家:
美国
项目类别:
财政年份:
2002
资助国家:
美国
项目状态:
已结题
起止时间:
2002-09-01 至 2004-08-31

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项目成果

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中文摘要
翻译
描述(由申请人提供):念珠菌是第三大原因
英文摘要
Description(provided by applicant): Candida is the third leading cause of catheter-related nosocomial bloodstream infections. Indwelling devices have been shown to support colonization and biofilm formulation by Candida. Intravenous lines are the most frequent indwelling device and are the single most common cause of candidemia. Once a Candida biofilm forms in vivo, removal of the substrate that is supporting the biofilm growth is almost always required to eliminate the infection. Unfortunately, in many instances removal is impossible due to deteriorated patient condition, anatomical location, or underlying disease. The goal of this project is to incorporate an antifungal agent into unique, patented formulations to create a coating for medical devices that is resistant to C. albicans. A coating and antifungal delivery system that could extend the time and/or increase the rate of delivery and achieve a higher concentration of antifungal agents to a C. albicans-susceptible site would have enormous therapeutic advantages over systemic and inefficacious topical routes of delivery. To demonstrate the feasibility of this approach, the specific aims are to optimize the coating formulation for use as short-term antifungal coatings for medical devices, evaluate the coatings for antifungal activity in vitro, and to perform an intramuscular implantation study in rabbits. PROPOSED COMMERCIAL APPLICATION: Candida albicans is by far the most frequently isolated human mycotic agent. The large number of immunosuppressed patients with indwelling devices combined with the extensive social and economic costs associated with treating C. albicans-related infections serve as justification for the pursuit of alternative therapies.
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