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.

该主要研究仪器（MRI）奖支持小角X射线散射（SAXS）仪器的收购，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各种材料的纳米级结构。这些包括聚合物、纤维、复合材料、薄膜、液晶、纳米颗粒、洗涤剂、乳液和生物材料。该仪器还将使这些材料的流动，并在高压和高温下，这是相关的工业过程的研究。该工具支持的研究项目包括与塑料回收，药物输送和水处理相关的研究项目。除了最先进的科学，该奖项还将提高教育和培训机会，为学生在俄克拉荷马州提供仪器访问在每年一次，为期两天，动手培训workshop.A SAXS仪器将是一个宝贵的补充，现有的仪器基础设施在俄克拉荷马州，并将补充电子显微镜仪器在该州提供。SAXS是一个有价值的补充，因为从SAXS获得的结果是代表散装材料，而不仅仅是在电子显微镜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方法更有力的结论。重要的是，SAXS也是非破坏性的，可以在原始状态下分析材料的结构，而无需任何专门的额外设备或样品制备。该仪器的2D检测器对于具有对齐纳米级结构的各向异性样品（如液晶或流动变形颗粒）将是有价值的。该项目由土木、机械和制造创新部（CMMI）、激励竞争研究的既定计划（EPSCoR）和主要仪器研究计划（MRI）共同资助。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。