MRI: Acquisition of a High-Pressure, High-Temperature Small Angle X-Ray Scattering Instrument for Oklahoma

MRI：为俄克拉荷马州采购高压高温小角度 X 射线散射仪

• 批准号: 2216074
• 负责人: Javen Weston
• 金额: $ 46.12万
• 依托单位: University of Tulsa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2216074&HistoricalAwards=false
• 关键词: MRI; Acquisition; Pressure; Temperature; Small

This Major Research Instrumentation (MRI) award supports the acquisition of a Small-Angle X-ray Scattering (SAXS) instrument that will enable fundamental and applied research in the state of Oklahoma and surrounding region. The instrument will allow scientists and engineers to study the nano-scale structure of a wide variety of materials. These include polymers, fibers, composites, thin-films, liquid crystals, nanoparticles, detergents, emulsions, and biological materials. This instrument will also enable study of these materials under flow, and at elevated pressures and temperatures which are relevant to industrial processes. The research projects enabled by this instrument include those related to plastic recycling, drug delivery, and water treatment. Beyond state-of-the-art science, the award will also enhance the educational and training opportunities for students in Oklahoma by providing instrument access in an annual, two-day, hands-on training workshop.A SAXS instrument will be a valuable complement to existing instrument infrastructure in Oklahoma and will complement the electron microscopy instrumentation available in the state. SAXS is a valuable addition because the results obtained from SAXS are representative of the bulk material and not just the local portion(s) observed in electron micrographs. Micrographs, however, are much easier to interpret and do not rely on fitting the measured data to complex mathematical models, as SAXS does. By having access to both techniques, researchers can draw much stronger conclusions about their materials than would be possible with only one type of measurement. Importantly, SAXS is also non-destructive and analyzes the material’s structure in its original state without any specialized additional equipment or sample preparation. The instrument’s 2D detector will be valuable for anisotropic samples with aligned nano-scale structures, such as liquid crystals or flow-deformed particles. This project is jointly funded by the division of Civil, Mechanical and Manufacturing Innovation (CMMI), the Established Program to Stimulate Competitive Research (EPSCoR), and the Major Instrumentation Research Program (MRI).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该重大研究仪器 (MRI) 奖项支持购买小角 X 射线散射 (SAXS) 仪器，该仪器将使俄克拉荷马州及周边地区的基础和应用研究成为可能。该仪器将使科学家和工程师能够研究该仪器。该仪器还可以研究各种材料的纳米级结构，包括聚合物、纤维、复合材料、薄膜、液晶、纳米颗粒、洗涤剂、乳液和生物材料。该仪器在与工业过程相关的高压和高温下进行的研究项目包括与最先进的科学相关的塑料回收、药物输送和水处理。通过在每年为期两天的实践培训研讨会上提供仪器使用机会，为俄克拉荷马州的学生提供教育和培训机会。SAXS 仪器将成为俄克拉荷马州现有仪器基础设施的宝贵补充，并将补充俄克拉荷马州现有的电子显微镜仪器SAXS 是一个有价值的补充，因为从 SAXS 获得的结果代表了大块材料，而不仅仅是电子显微照片中观察到的局部部分，然而，显微照片更容易解释，并且不像 SAXS 那样依赖于将测量数据拟合到复杂的数学模型。通过使用这两种技术，研究人员可以得出比仅使用一种测量更强有力的结论。重要的是，SAXS 也是非破坏性的，并且无需任何专门的附加设备或将材料的结构嵌套在其原始状态。样本该仪器的 2D 探测器对于具有排列纳米级结构的各向异性样品（例如液晶或流动变形颗粒）非常有价值。该项目由土木、机械和制造创新部门 (CMMI) 联合资助。刺激竞争性研究计划 (EPSCoR) 和主要仪器研究计划 (MRI)。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优势和更广泛的评估进行评估，认为值得支持影响审查标准。