MRI: Acquisition of a Scanning Electron Microscope for Multidisciplinary Undergraduate Research and Training

该奖项由主要研究仪器和化学研究仪器计划共同支持。威斯康星大学里弗福尔斯分校正在购买一台具有低真空能力的扫描电子显微镜（SEM），能量色散X射线光谱仪，以及二次电子，背散射电子和阴极发光探测器，以支持Samuel阿尔瓦拉多及其同事Lowell McCann，Timothy Lyden和Kevin Thaisen的研究。该仪器有助于化学、生物技术、生物学、植物和地球科学以及物理学领域的研究。一般来说，扫描电子显微镜用于成像和理解纳米和中尺度的化学现象。该显微镜使用聚焦电子束，该电子束在表面上扫描以生成图像，随后产生信号，该信号揭示关于样品的组成和拓扑结构的信息。该工具增强了各级学生的教育，研究和教学努力。扫描电子显微镜的高分辨率成像和分析能力的这一奖项旨在加强研究和教育，特别是在化学，生物和物理科学领域。化学研究的重点是表征聚合物量子点复合材料，用于制造和测试电子束光刻的光伏和发光器件，并研究球磨有机反应的结晶副产品。还对在城市环境中收集的微陨石进行了检查。生物系统也将在研究中，特别是在骨骼肌和基质细胞发育领域，以更好地了解健康细胞和功能失调的细胞生物学。该奖项反映了NSF的法定使命，并已被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。

This award is jointly supported by the Major Research Instrumentation and the Chemistry Research Instrumentation programs. The University of Wisconsin-River Falls is acquiring a scanning electron microscope (SEM) with low-vacuum capability, energy dispersive X-ray spectroscopy, as well as secondary electron, backscattered electron, and cathodoluminescence detectors to support the research of Samuel Alvarado and colleagues Lowell McCann, Timothy Lyden and Kevin Thaisen. This instrument facilitates research in the areas of chemistry, biotechnology, biology, plant and earth science, and physics. In general, scanning electron microscopy is used to image and understand chemical phenomena at the nano and mesoscales. This microscope uses a focused electron beam, which is scanned over a surface to generate an image and subsequently produces signals that reveal information about the composition and topology of a sample. This instrument enhances the educational, research, and teaching efforts of students at all levels. This award of a scanning electron microscope for high resolution imaging and analysis capabilities is aimed at enhancing research and education, especially in the areas of chemical, biological, and physical sciences. Research in chemistry focuses on characterizing polymer quantum dot composite materials for fabricating and testing photovoltaic and luminescent devices with electron-beam lithography and investigating crystalline byproducts from ball milling organic reactions. Examination of micrometeorites collected in urban settings are also performed. Biological systems will also be under study, particularly in the area of skeletal muscle and stromal cell development to better understand healthy cell and dysfunctional cell biology.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.