SELF-DISINFECTING WATERLINE TUBING FOR DENTAL OFFICES

描述：这一新的SBIR应用程序的目标是开发一种经济的 防止生物膜形成和生长的牙齿水线。建议数 水线将利用光催化氧化系统来抑制微生物 成长。这样的系统将消除对外来化学品的需要，并将 允许持续清洗输水线。所述光反应涂层为 由一种无毒化合物组成，用于消费品，如 牙膏和食物。 该应用程序建议将一项已建立的技术应用于此问题。 总的计划是在牙科单元水管的内表面涂上一层 外加一层二氧化钛(二氧化钛)。这种化合物以前是 被证明与紫外线反应产生杀死微生物的产品，通过 多种机制。该反应产生的产物包括反应性的 抗菌氧物种、直接电子交换和光解。这个 调查人员援引日本的一项研究证明，二氧化钛 浸渍的表面比未处理的表面细菌更少。为 例如，实验室研究表明，99%的杀伤率 常见病原菌浸渍二氧化钛瓷砖1小时 典型的室内照明。 这个应用程序的目标是设计二氧化钛涂层水线，确定 原型管的光传播特性和物理耐久性， 测定涂层输水管的抗菌性能，最后 制定产品的初步设计和成本评估。 将建造两条原型输水线。第一个将是涂有特氟龙的 带有光纤的透明管，螺旋缠绕在 管子。光纤将沿其长度泄漏光以催化 二氧化钛涂层。这将被覆盖一层保护套。A公司(Cuda 佛罗里达州杰克逊维尔公司)已经被认为有能力 制造这个原型。 建议的商业应用：不可用

DESCRIPTION: The goal of this new SBIR application is to develop an economical Dental waterline that resists biofilm formation and growth. The proposed waterline will utilize a photocatalytic oxidation system to inhibit microbial growth. Such a system would obviate the need for extraneous chemicals and would allow continuous cleansing of the waterlines. The photoreactive coating is composed of a non-toxic compound that is used in consumer products such as toothpaste and foods. The application proposes to apply an established technology to this problem. The general plan is to coat the inside surfaces of the Dental unit waterlines with a layer of titanium dioxide (TiO2). This compound has been previously shown to react with UV light to produce products that kill microorganisms by multiple mechanisms. The products produced by this reaction include reactive antimicrobial oxygen species, direct electron exchange and photolysis. The investigators cite Japanese studies that have demonstrated that TiO2 impregnated surfaces harbor fewer bacteria then non-treated surfaces. For example, laboratory studies have suggested that 99 percent kill ratios for common pathogenic bacteria over-TiO2-impregnated ceramic tiles with one hour of typical indoor illumination. The goal of this application is to design TiO2-coated waterlines, determine the light propagating properties and physical durability of the prototype tubing, determine the antimicrobial properties of the coated waterlines and finally develop a preliminary design and cost assessments for a product. Two prototype waterlines will be built. The first will be a Teflon-coated transparent tube with optical fibers spiral-wrapped around the outside of the tubing. The optical fibers will leak light along its length to catalyze the TiO2 coating. This will be coated with a protective sheath. A company (Cuda Corporation of Jacksonville Fl.) has been identified with the ability to fabricate this prototype. PROPOSED COMMERCIAL APPLICATION: NOT AVAILABLE