MRI-R2: Acquisition of an Analytical High Resolution Scanning Electron Microscope

该奖项由2009年美国复苏和再投资法案(公法111-5)资助。获得主要研究仪器(MRI)项目John J.Bozzola教授及其同事Samir M.Aouadi、Peter Filip、Punit Kohli和Shing-chung Max Yen的资助，来自南伊利诺伊大学卡本代尔的集成显微镜和图形专业(图像)设施将获得一台高分辨率的场发射扫描电子显微镜(SEM)。从生物分子传感到大气再到地质科学和工程等领域的大量研究人员都在使用这种设备。该设施位于研究生院的行政办公场所。该仪器将用于支持下列研究活动：1)纳米科学在生物分析和材料化学中的应用研究；2)自适应纳米复合材料和织构摩擦学涂层；3)树枝状功能化超导氧化铁纳米颗粒(SPION)作为pH敏感磁共振造影剂；4)利用碳纳米管、纳米线和碳纳米管杂化材料的应用开发；5)纳米结构的表面现象和成像，以研究单个纳米结构的表面和整体电子性质的相互作用；6)改进的基质辅助激光解吸电离质谱仪(MALDI)靶标作为生物标志物筛选/比较蛋白质组学的先进平台的研究；7)大气颗粒物的产生、加工和去向的研究；8)溶胶-凝胶衍生材料的应用；9)纤维素细菌降解的研究；10)硫化物矿物氧化溶解的研究。扫描电子显微镜(SEM)是一种广泛使用的提供样品表面图像的技术。图像是通过用电子束扫描表面而获得的。这项主要技术使科学家能够看到人造系统的超微结构细节，人造纳米结构的分子排列，以及与表面摩擦和磨损相关的细微变化。这里描述的研究将影响许多领域，包括化学、材料化学、地质学、生物化学和环境。该仪器将成为教学和研究不可或缺的一部分。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).With this award from the Major Research Instrumentation (MRI) program Professor John J. Bozzola and colleagues Samir M. Aouadi, Peter Filip, Punit Kohli and Shing-Chung Max Yen from the Integrated Microscopy and Graphics Expertise (IMAGE) facility at Southern Illinois University at Carbondale will acquire a high resolution, field emission scanning electron microscope (SEM). This facility is used by a large number of researchers in fields as diverse as biomolecular sensing to atmospheric to geological sciences and engineering. The facility is administratively housed at the Graduate School. The instrument will be used to support research activities such as: 1) studies of nanoscience applications to bioanalytical and materials chemistry; 2) adaptive nanocomposite and textured tribological coatings; 3) dendron-functionalized superconducting iron oxide nanoparticles (SPIONs) as pH-sensing MRI contrast agents; 4) application development using carbon nanotubes, nanowires and carbon nanotube-based hybrid materials; 5) surface phenomena and imaging of nanostructures to study the interplay between surfaces and bulk electronic properties of individual nanostructures; 6) study of modified matrix-assisted laser desorption ionization mass spectrometry (MALDI) targets as advanced platforms for biomarker screening/comparative proteomics; 7) studies of the generation, processing and fate of atmospheric particulate matter; 8) applications of sol-gel derived materials; 9) study of bacterial degradation of cellulose; and 10) study of oxidative dissolution of sulfide minerals.A scanning electron microscopy (SEM) is a widely used technique for providing an image of a sample surface. The image is obtained from scanning the surface with a beam of electrons. This mainstay technique enables scientists to see the ultrastructural details of fabricated systems, molecular arrangements of man-made nanostructures and the subtle changes associated with friction and wear in surfaces. The studies described here will impact a number of areas, including chemistry, materials chemistry, geology, biochemistry and the environment. This instrument will be an integral part of teaching as well as research.