MRI: Acquisition of a Atomic Force Microscope (AFM)-Raman Microscope

MRI：购买原子力显微镜 (AFM)-拉曼显微镜

• 批准号: 1828325
• 负责人: Karl Booksh
• 金额: $ 55.82万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-15 至 2021-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1828325&HistoricalAwards=false
• 关键词: MRI; Acquisition; Atomic; Force; Microscope

This award is supported by the Major Research Instrumentation (MRI), the Chemistry Research Instrumentation (CRIF) programs and the Established Program to Stimulate Competitive Research (EPSCoR). Professor Karl Booksh from the University of Delaware and colleagues Raul F Lobo, John F Rabolt, Thomas E Hanson and Jocelyn Alcantara-Garcia have acquired an atomic force Raman microscope. Raman microscopy is a principal characterization technique for both surfaces and bulk samples. Using a laser, the microscope scans a sample which produces vibrational spectroscopic data providing chemical information about the material. An atomic force microscope (AFM) also scans a sample using a small probe or tip to provide information about the surface such as topography, hardness, electrical and thermal properties. Combining the two techniques in an AFM-Raman microscope provides both types of information from the same regions of the sample. It has wide application in research endeavors across the pure and applied sciences and engineering. An important application is use in the investigation of converting methane to chemicals such as methanol using a catalyst on a surface. The microscope will enable study of the reaction of surface species as a function of reaction conditions to optimize the yield of valuable products. The acquisition will impact 5 colleges, 13 departments at the University of Delaware (UD) and users at Delaware State University (DSU, an HBCU) and the Winterthur Museum. The Raman microscope will significantly benefit female, minority, and junior faculty at both UD and DSU. The research and training of a significant number of female and underrepresented minority students will also be greatly enhanced.The proposal is aimed at enhancing research and education at all levels. The structure and morphology of trilayer coaxial electrospun polymer nanofibers is under investiation, and analysis of high tensile strength polymers. Chemical modification of surfaces, methane activation over copper-containing zeolite catalysts and catalytic conversion of lignocellulosic biomass to chemicals and fuels is being studied. Synthesis of hierarchical semiconducting nano-composites is another research area to benefit from the instrument. The microbial iron- and sulfur-oxidation and biomineral composition in environmental samples is explored, and mechanisms and control of sulfur metabolism in chlorobaculum tepidum. The Winterthur Scientific Research and Analysis laboratory within the Department of Conservation at Winterthur Museum is using the non-destructive instrumental technique afforded by the microscope in the analysis of works of art and cultural heritage.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.

该奖项由主要研究仪器（MRI）、化学研究仪器（CRIF）计划和促进竞争性研究的既定计划（EPSCoR）支持。特拉华大学的Karl Booksh教授和他的同事Raul F Lobo， John F Rabolt， Thomas E Hanson和Jocelyn Alcantara-Garcia已经获得了一台原子力拉曼显微镜。拉曼显微镜是表面和大块样品的主要表征技术。使用激光，显微镜扫描样品，产生振动光谱数据，提供有关材料的化学信息。原子力显微镜（AFM）也使用小探针或尖端扫描样品，以提供有关表面的信息，如形貌、硬度、电学和热性能。在afm -拉曼显微镜中结合这两种技术，可以从样品的同一区域获得两种类型的信息。它在纯科学和应用科学及工程领域的研究工作中有着广泛的应用。一个重要的应用是利用表面上的催化剂将甲烷转化为化学物质，如甲醇。显微镜将使研究表面物质的反应作为反应条件的函数，以优化有价值产品的产量。此次收购将影响特拉华大学（UD）的5个学院、13个系，以及特拉华州立大学（DSU， HBCU）和温特图尔博物馆的用户。拉曼显微镜将使特拉华大学和特拉华州立大学的女性、少数族裔和初级教员受益匪浅。对大量女性和代表性不足的少数民族学生的研究和培训也将大大加强。该建议旨在加强各级的研究和教育。研究了三层共轴静电纺丝聚合物纳米纤维的结构和形态，并对其进行了高抗拉强度聚合物的分析。目前正在研究表面的化学改性、含铜沸石催化剂上的甲烷活化以及木质纤维素生物质催化转化为化学品和燃料。分层半导体纳米复合材料的合成是另一个受益于该仪器的研究领域。探讨了环境样品中微生物的铁硫氧化和生物矿物组成，以及温绿杆菌硫代谢的机制和调控。温特图尔博物馆保护部的温特图尔科学研究和分析实验室正在使用显微镜提供的非破坏性仪器技术来分析艺术作品和文化遗产。该奖项反映了美国国家科学基金会的法定使命，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。