MRI: Acquisition of an Environmental Transmission Electron Microscope for Research and Education in Materials Chemistry

该重大研究仪器奖支持采购一台环境透射电子显微镜（ETEM），这是一种高分辨率电子显微镜，带有简化的差分泵送系统，可以将气体直接引入色谱柱。作为传统的电子显微镜，该仪器将提高当前电子显微镜在教学、用户培训和研究方面的能力。在操作环境条件下可视化亚纳米级结构变化的能力将为许多材料问题带来重要见解，例如掺杂剂和杂质对加工和腐蚀的影响，缺陷（位错，晶界和界面）迁移，热诱导相变，非均相催化，纳米级功能材料以及材料的一般环境稳定性。低加速电压最大限度地减少了氧化物和软材料的损伤，从而提供了可视化聚合物、组织工程、药物输送、生物材料和生物矿化动力学的能力。这将是宾州西部地区的第一个ETEM。它将被安置在匹兹堡大学的斯旺森工程学院（SSoE），并将成为彼得森纳米科学与工程研究所（PINSE）纳米制造和表征设施（NFCF）的一部分。它将连接到医学院结构生物系的电子显微镜设备。NFCF是一个可供所有国内和国际研究人员使用的用户设施。该仪器的广泛可见性和使用将有助于纳米和中尺度科学与技术、生物学、能源和可持续性研究以及博士后、研究生和本科生的培训。该仪器还将用于电子显微镜、纳米表征、薄膜、生物材料、纳米材料和纳米技术等课程的教学。作为PINSE的一部分，它将分别作为nsf纳米技术本科教育（NUE）推广计划和皮特工程职业准入计划（PECAP）计划的一部分，为高中生和代表性不足的群体，特别是非洲裔美国人的教育做出贡献。******该奖项来自主要仪器项目，将支持在宾州西部地区安装首台环境透射电子显微镜（ETEM）。该仪器将被安置在匹兹堡大学斯旺森工程学院（SSoE），作为纳米制造和表征设施（NFCF）的一部分，该设施可供所有国内和国际研究人员使用。透射电镜是一种强大的工具，可以可视化纳米级及以下的材料。ETEM能够对纳米材料的动态加工/结构/性质关系提供独特的见解，并在广泛的科学和工程领域产生影响，例如氧化，腐蚀，催化，纳米加工，生物矿化，组织工程和药物输送。该仪器的广泛可见性和可访问性将有助于纳米和中尺度科学与技术、生物学、能源和可持续性研究以及博士后、研究生和本科生的教育。该仪器还将用于电子显微镜、纳米表征、薄膜、生物材料、纳米材料和纳米技术课程的教学。它将分别作为nsf纳米技术本科教育推广计划和皮特工程职业准入计划的一部分，为高中生和代表性不足的群体，特别是非洲裔美国人的教育做出贡献。

1337731YangTechnical AbstractThis Major Research Instrumentation Award supports the acquisition of an environmental transmission electron microscope (ETEM), a high-resolution electron microscope with a simplified differential pumping system that permits gas introduction directly into the column. As a conventional TEM the instrument will enhance the current electron microscopy capabilities in teaching, user training and research. The capability to visualize structural changes at the sub-nanoscale level under operational environmental conditions will bring essential insights to many materials issues, such as the effect of dopants and impurities on processing and corrosion, defect (dislocation, grain boundaries and interface) migrations, thermally induced phase transformations, heterogeneous catalyses, nano-scale functional materials, and the environmental stability of materials in general. The low accelerating voltage minimizes damage of oxide species and soft materials, thereby providing the ability to visualize the dynamics of polymers, tissue engineering, drug delivery, biomaterials and biomineralization. This will be the first ETEM in the greater Western Pennsylvania area. It will be housed at the University of Pittsburgh in the Swanson School of Engineering (SSoE) and will be a part of the Nanofabrication and Characterization Facility (NFCF) in the Peterson Institute of NanoScience and Engineering (PINSE). It will be linked to the electron microscopy facility in the Structural Biology department, School of Medicine. The NFCF is a user facility available to all national and international researchers. The broad visibility and access to this instrument will contribute to nano- and meso-scale science and technology, biology, energy and sustainability research and to the training of post-docs, graduate students and undergraduate students. This instrument will also be used in teaching courses in Electron Microscopy, Nano-characterization, Thin Films, Biomaterials, Nanomaterials and Nanotechnology. As a part of PINSE, it will contribute to the education of high school students and under-represented groups, especially African-American, as part of the NSF-Nanotechnology Undergraduate Education (NUE) outreach program and Pitt Engineering Career Access Program (PECAP) program, respectively. ******This award from the Major Instrumentation program will support the installation of the first Environmental Transmission Electron Microscope (ETEM) in the greater Western Pennsylvania area. The instrument will be housed at the University of Pittsburgh in the Swanson School of Engineering (SSoE) as part of the Nanofabrication and Characterization Facility (NFCF), a user facility available to all national and international researchers. TEM is a powerful tool to visualize materials at the nanoscale and below. ETEM enables unique insights on the dynamic processing/structure/property relationships of nanomaterials with impact in a broad spectrum of science and engineering areas, such as oxidation, corrosion, catalysis, nano-processing, bio-mineralization, tissue engineering and drug delivery. The broad visibility and access to this instrument will contribute to nano- and meso-scale science and technology, biology, energy and sustainability research and education of post-docs, graduate students and undergraduate students. This instrumentation will also be used in teaching Electron Microscopy, Nano-characterization, Thin Films, Biomaterials, Nanomaterials and Nanotechnology courses. It will contribute to the education of high school students and under-represented groups, especially African-American, as part of the NSF-Nanotechnology Undergraduate Education outreach program and Pitt Engineering Career Access Program, respectively.