Novel Hydrogen Sulfide Sensors for Portable Monitors

用于便携式监测仪的新型硫化氢传感器

• 批准号: 6869816
• 负责人: Stephen S. Williams
• 金额: $ 37.34万
• 依托单位: SYNKERA TECHNOLOGIES, INC.
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-16 至 2005-09-15
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6869816
• 关键词: air sampling /monitoring; bioengineering /biomedical engineering; biomaterial development /preparation; biomedical equipment development; ceramics; gas analyzer; hydrogen sulfide; miniature biomedical equipment; monitoring device; nonbiomedical equipment; occupational health /safety; oxides; portable biomedical equipment

DESCRIPTION (provided by applicant): Nanomaterials Research's primary objective for this SBIR project is the design, development, and demonstration of a better sensor technology for the detection of hydrogen sulfide Hydrogen sulfide is a colorless, flammable gas that is highly toxic It reacts with the enzymes in the blood that inhibit cell respiration At high concentrations, it can literally shut off the lungs, while lower levels can burn the respiratory tract and cause eye irritation This gas is encountered in a wide range of industries, and a number of standards have been established for occupational exposure The OSHA Permissible Exposure Limit (PEL) is 10 ppm, the Short Term Exposure Limit (STEL) is 15 ppm, and exposures of 300 ppm or greater are considered immediately dangerous to life and health (IDLH) Because of the potential for adverse health effects at low concentrations, the industrial hygiene community is continually seeking improved performance from hydrogen sulfide sensors Specific requirements include reliable and accurate detection in real time, quantitative measurement capabilities, low purchase and life cycle costs, and low power consumption (for portability) Sensors meeting these requirements will find numerous applications within the health and safety field In addition, there are several potential spin-off opportunities in leak detection, emission monitoring, and process control Nanomaterials' approach is to utilize alternative ceramic oxide materials, and a unique multilayer fabrication process to accomplish the objectives of this project The work plan includes optimization of the sensor materials, sensor element fabrication, sensor element packaging, in-house and external evaluation of the sensors, and establishing the foundation for new instrument development The ultimate aim is a low-cost, low-power sensor that can be used in a new type of personal monitor The envisioned monitor is a low profile, credit card sized "smart-card" that can not only alert the wearer when unsafe concentrations have been encountered but also to track cumulative individual worker exposure to a particular toxic gas species.

描述（由申请人提供）：纳米材料研究公司此 SBIR 项目的主要目标是设计、开发和演示一种更好的传感器技术，用于检测硫化氢。硫化氢是一种无色、易燃气体，具有剧毒，它会与血液中抑制细胞呼吸的酶发生反应。在高浓度下，它实际上可以关闭肺部，而较低浓度则可以灼伤呼吸道并导致眼睛损伤。 刺激性 这种气体在许多行业中都会遇到，并且已经制定了许多职业接触标准 OSHA 允许接触限值 (PEL) 为 10 ppm，短期接触限值 (STEL) 为 15 ppm，接触 300 ppm 或更高被认为对生命和健康有立即危险 (IDLH) 由于低浓度下可能对健康产生不利影响，工业卫生界正在不断寻求 提高硫化氢传感器的性能 具体要求包括可靠、准确的实时检测、定量测量能力、低购买和生命周期成本以及低功耗（便于携带） 满足这些要求的传感器将在健康和安全领域得到广泛应用 此外，在泄漏检测、排放监测和过程控制方面还有一些潜在的副产品机会 纳米材料的方法是利用替代陶瓷氧化物材料， 工作计划包括传感器材料的优化、传感器元件的制造、传感器元件的封装、传感器的内部和外部评估以及为新仪器开发奠定基础最终目标是一种低成本、低功耗的传感器，可用于新型个人监视器预期的监视器是一种低调的信用卡大小的“智能卡”，不仅可以在不安全时向佩戴者发出警报 还可以跟踪个别工人累积接触特定有毒气体的情况。