SBIR Phase I: Highly Specific Nanoparticle Gas Sensors: HCN and SO2

小型企业创新研究（SBIR）第一阶段旨在探索创建低成本气体传感器的可行性，该传感器对痕量HCN和SO2具有高度特异性。 该项目包括两个平行的努力;一个是创建一个选择性结合HCN和SO2的纳米结构基底，另一个是创建一个低成本的物种特异性拉曼光谱仪。 这两种技术共同构成了一个完整的、定量的、近实时的传感器，用于监测HCN和SO2。 这样的传感器将具有广泛的适用性，国土安全监测，环境排放监测，和火灾救援应用（烟雾吸入HCN）。 该项目在几个重要方面推进了拉曼光谱学的实践。 首先，它试图将Au纳米结构技术应用于固-气界面。 其次，提出了一种结构紧凑、成本低廉的拉曼监测器。 用于制造拉曼监测器的技术对于商业拉曼监测器的开发来说是新颖的和高度实用的。该传感器对氰化物或二氧化硫产品的用户具有广泛的应用。氰化氢毒性特别大，大量用于塑料生产和贵金属开采。 对市场的粗略分析表明，有几家大的化学公司对这种装置感兴趣。 该设备还需要提供对氰化氢或二氧化硫的快速检测。

This Small Business Innovation Research (SBIR) Phase I proposes to explore the feasibility of creating a low-cost gas sensor highly specific to trace levels of HCN and SO2. The project consists of two parallel efforts; one to create a nanostructured substrate that selectively binds HCN and SO2, and another to create a low-cost, species-specific Raman spectrometer. Together, both technologies form a complete, quantitative, near real-time sensor for monitoring HCN and SO2. Such a sensor would have broad applicability to homeland security monitoring, environmental emissions monitoring, and to fire rescue applications (smoke inhalation of HCN). The project advances the practice of Raman spectroscopy in several significant ways. First it seeks to apply Au nanostructure technology to solid-gas interfaces. Secondly, it proposes a Raman monitor that is compact and low-cost. The technology used to make the Raman monitor is both novel and highly practical for the development of commercial Raman monitors. This sensor should have broad applications for users of cyanide or sulfur dioxide products. Hydrogen cyanide is particularly toxic and used in large quantities in the production of plastics and mining of precious metals. Perfunctory analysis of the market indicates several large chemical firms that are interested in the proposed device. The device is also needed to provide rapid detection of hydrogen cyanide or sulfur dioxide.