MRI-R2: Acquisition of a High Resolution Field Emission Transmission Electron Microscope for Research in Self-Assembled, Synthetic and Biomolecular Materials

MRI-R2：购买高分辨率场发射透射电子显微镜，用于自组装、合成和生物分子材料的研究

• 批准号: 0959393
• 负责人: Vijay John
• 金额: $ 130万
• 依托单位: Tulane University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-02-01 至 2012-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0959393&HistoricalAwards=false
• 关键词: MRI; R2; Acquisition; Resolution; Field

0959393John"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."The proposal addresses Tulane University's request for a high resolution field-emission transmission electron microscope (FE-TEM) to complement its existing capabilities in electron microscopy and bring these capabilities to address the research needs of the university and academic researchers in the region. Tulane University operates an Electron Microscopy Facility as part of a centralized Coordinated Instrumentation Facility (CIF) (http://www.tulane.edu/~cif/) that was established in 1991 with the intent to maintain, manage and operate high priced instrumentation across the University. The electron microscopy facility is well-staffed by an excellent electron microscopist (Dr. Jibao He) who will provide training, participate in data interpretation, and maintain the instrument. Intellectual Aspects: The proposed TEM will be used to carry out a wide variety of research projects and to enhance the research resources available for new faculty across a range of scientific and engineering disciplines. There are 3 principal investigators and 6 senior investigators who will directly benefit from access to a high quality instrument. V. John will use the instrument for a variety of projects involving the self-assembly of lipid and surfactant systems to tubular liposomes and gel microstructures. S. Grayson's research related to dendrimers and macromolecules, T. Mandal's research in polymer nanoparticles related to drug delivery, T. Ahsan's project in stem cell characterization, and D. Khismatullin's research in cell cytoskeletal characterization, N. Pesika's research in biomimetic adhesive materials, and J. Wickramarajah's research in self-assembled porphyrin based materials, are all examples of projects in soft materials that will tremendously benefit from the use of high-resolution cryogenic imaging techniques for a fundamental understanding of underlying phenomena. U. Diebold's research in sub-surface microstructures in semi-conducting materials, Z. Mao's research in superconducting and magnetic thin films, N. Pesika's research in anisotropic quantum dots, and V. John's research in ceramics templated in self-assembled systems are examples where high-resolution TEM at the sub-nanometer scale will help understand the growth characteristics and properties of inorganic materials. The relatively recent advent of Field-Emission TEM providing tremendous increases in beam energy, brightness and coherence makes imaging at such resolutions and in such difficult-to-image systems possible. This proposal represents Tulane's efforts to bring its well-run electron microscope facility to a state-of-the-art facility conducting forefront research in an inherently interdisciplinary setting.

0959393 John“该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。“该提案解决了杜兰大学对高分辨率场发射透射电子显微镜（FE-TEM）的要求，以补充其现有的电子显微镜能力，并将这些能力用于解决该地区大学和学术研究人员的研究需求。杜兰大学经营的电子显微镜设施作为一个集中的协调仪器设施（CIF）的一部分（http：//www.tulane.edu/tulancif/），成立于1991年，目的是维护，管理和操作整个大学的高价仪器。电子显微镜设施配备了一名优秀的电子显微镜学家（Jibao He博士），他将提供培训，参与数据解释和维护仪器。智力方面：拟议的TEM将用于开展各种各样的研究项目，并加强跨一系列科学和工程学科的新教师可用的研究资源。有3名主要研究者和6名高级研究者将直接受益于获得高质量的仪器。V. John将使用该仪器进行各种项目，包括脂质和表面活性剂系统自组装成管状脂质体和凝胶微结构。S. Grayson的研究涉及树枝状聚合物和大分子，T。Mandal在与药物输送相关的聚合物纳米颗粒方面的研究，T。Ahsan的干细胞特性研究项目，以及D. Khismatullin在细胞骨架特征方面的研究，N。Pesika在仿生粘合剂材料方面的研究，以及J. Wickramarajah在自组装卟啉基材料方面的研究，都是软材料项目的例子，这些项目将极大地受益于使用高分辨率低温成像技术对潜在现象的基本理解。联合Diebold在半导体材料亚表面微结构方面的研究，Z。毛泽东在超导和磁性薄膜方面的研究，N。Pesika在各向异性量子点方面的研究，以及V. John在自组装系统中的陶瓷模板方面的研究，都是亚纳米尺度的高分辨率TEM将有助于理解无机材料的生长特性和性质的例子。相对较新出现的场致发射TEM提供了极大的提高光束能量，亮度和相干性，使成像在这样的分辨率和在这样的难以成像的系统成为可能。这项建议代表杜兰大学的努力，使其良好的运行电子显微镜设施，以一个国家的最先进的设施进行前沿研究，在一个固有的跨学科设置。