MRI: Acquisition of a High-Resolution Scanning Electron Microscope for an Interdisciplinary, Multi-User Facility Serving Life, Physical, and Materials Sciences

MRI：为生命、物理和材料科学服务的跨学科、多用户设施采购高分辨率扫描电子显微镜

• 批准号: 0723002
• 负责人: Peter Geissinger
• 金额: $ 60.36万
• 依托单位: University of Wisconsin-Milwaukee
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0723002&HistoricalAwards=false
• 关键词: MRI; Acquisition; Resolution; Scanning; Electron

The Chemistry Department at the University of Wisconsin Milwaukee (UWM) will acquire a high resolution scanning electron microscope (SEM) with this award from the Major Research Instrumentation (MRI) program. This instrument will be used in the high resolution imaging of cell surfaces and nanoparticle conjugates, investigating novel surfaces and nanostructures, the study of composites & colloids, the development of advanced nano-electronic and spintronic materials and in nanoprobe fabrication & characterization.High resolution scanning electron microscopy is a critical characterization tool in many research areas (chemistry, physics, materials, engineering, biology, etc.). SEM uses a focused electron beam to scan the surface of a sample. This provides images and structures on a nanometer scale. In materials science, high resolution compositional imaging is crucially important for the development of nanomaterials with novel functionality. In the biological area, this capability allows for the localization of nanoparticles attached to cell surfaces for the identification of receptors and other proteins, answering questions about the distribution of functional sites on the surface of cells. Electron microscopy technology will be used in graduate student research and instruction. The ease of operation of the new SEM will make it feasible for many courses to include an electron microscopy experience. The remote operation capabilities will be used to strengthen the existing links between UWM and the Milwaukee Public School system by developing high-level inquiry based experiments with UWM pre-service teachers.

威斯康星大学密尔沃基分校(UWM)化学系将从主要研究仪器(MRI)计划获得一台高分辨率扫描电子显微镜(SEM)。该仪器将用于细胞表面和纳米颗粒结合物的高分辨率成像，研究新的表面和纳米结构，复合材料和胶体的研究，先进的纳米电子和自旋电子材料的开发，以及纳米探针的制备和表征。高分辨率扫描电子显微镜是许多研究领域(化学、物理、材料、工程、生物等)的重要表征工具。扫描电子显微镜使用聚焦的电子束扫描样品的表面。这提供了纳米尺度的图像和结构。在材料科学中，高分辨率的成分成像对于开发具有新功能的纳米材料至关重要。在生物领域，这种能力允许定位附着在细胞表面的纳米颗粒，以识别受体和其他蛋白质，回答有关细胞表面功能位点分布的问题。电子显微镜技术将用于研究生的研究和教学。新的扫描电子显微镜易于操作，这将使许多课程纳入电子显微镜经验是可行的。远程操作能力将被用来加强密尔沃基大学和密尔沃基公立学校系统之间的现有联系，方法是与密尔沃基大学任职前的教师开展高水平的基于探究的实验。