MRI: Acquisition of a FEI Tecnai G2 Spirit BioTWIN Transmission Electron Microscope

MRI：购买 FEI Tecnai G2 Spirit BioTWIN 透射电子显微镜

• 批准号: 1229024
• 负责人: Richard Dillaman
• 金额: $ 63.15万
• 依托单位: University of North Carolina at Wilmington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-15 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1229024&HistoricalAwards=false
• 关键词: MRI; Acquisition; FEI; Tecnai; G2

The transmission electron microscope (TEM) enables visualization of cells and sub cellular structures that goes far beyond the resolving power of a conventional light microscope. Such microscopes are now a standard in the natural sciences, especially in cell and molecular biology. The advanced TEM capability offered by the Tecnai G2 Spirit BioTWIN is essential for the University of North Carolina Wilmington (UNCW) to maintain and expand its longstanding contribution to microscopic analysis. The UNCW Microscopy Lab is a multi-user facility that has a long history of serving the departments of Biology and Marine Biology, Chemistry and Biochemistry, Psychology, Anthropology, Geology and Geography and Center for Marine Science. TEM-based analyses are a particularly critical component in the interdisciplinary portfolio of research in the Department of Biology and Marine Biology (DBMB) where the Tecnai will support the UNCW Microscopy Lab?s missions of teaching, research and service. With a faculty of over 40, delivering 3 Bachelor?s degrees, 2 Master?s and a Ph.D. program in Marine Biology, DBMB is the most significant user of the facility, especially the TEM. Three thematic clusters of research, representing the research of 10 faculty members, will be specifically enhanced by the acquisition of a Tecnai G2 Spirit BioTWIN: (1) marine microbial cell biology, (2) biomineralization and (3) biomedical-related research. The first theme includes research on the biology of harmful algae that contribute to harmful algal blooms as well as examination of non-toxic species of marine phytoplankton. Also investigated will be bacterial marine microbes that play a key role in the nitrogen cycle in soils and marine aquatic systems. The second highlighted theme is biomineralization, which examines how organisms such as crustaceans, unicellular phytoplankton and foraminifera initiate and build their external calcified structures. TEM analyses will allow investigation of sub-cellular processes that direct CaCO3 deposition, which is increasingly important as the effect of ocean acidification on marine calcification is becoming a major environmental concern and a focus of national and international research. The third research theme supported by the new TEM is biomedical related research including an investigation into the mechanisms of action of equine herpes virus (EHV) a highly contagious pathogen whose mechanisms of infection and transmission are poorly understood. Neuroscience related research will address the sensory biology of hearing in mammals and movement and swimming in marine invertebrates. In both these research areas the Tecnai will allow the determination of neuronal pathways critical in hearing loss, head orientation and stabilization of visual fields. Finally, the Tecnai will be used to investigate how reaction-diffusion processes control muscle cell design, by combining a detailed ultrastructural analysis of muscle with mathematical modeling of the metabolic and structural demands of red and white skeletal muscle.The Tecnai G2 Spirit BioTWIN will support a broad portfolio of basic and applied research and, equally important, the Tecnai and supporting facility will also be a cornerstone of the undergraduate curriculum in introductory and advanced cell biology teaching, as well as supporting independent undergraduate and graduate research. The educational benefits will be further extended to pre-college students since the ability to visualize and explore the surface and internal structure of microorganisms, tissues and cells is one of the most powerful experiences that can be provided to students as they are challenged to connect biological concepts to cellular life. Likewise, teachers need effective resources to support their efforts. The Tecnai, together with the associated facilities at UNCW, will enable the Department of Biology and Marine Biology to develop and implement outreach and education activities that are crosscutting, from K-12 through Master?s and Ph.D. Specifically, the UNCW microscopy facility will support a long-standing commitment to outreach including activities that engage K-12 and pre-college students from under-represented communities. These efforts will include developing internship opportunities in high resolution microscopy, summer microscopy workshops and teacher training opportunities. Such activities will be delivered through existing public outreach platforms including the UNCW Center for Education in Science, Technology, Engineering and Mathematics and the Issac Bear Early College High School that is associated with UNCW.

透射电子显微镜 (TEM) 能够实现细胞和亚细胞结构的可视化，其分辨率远远超出了传统光学显微镜的分辨率。这种显微镜现在已成为自然科学的标准，特别是在细胞和分子生物学领域。 Tecnai G2 Spirit BioTWIN 提供的先进 TEM 功能对于北卡罗来纳大学威尔明顿分校 (UNCW) 保持和扩大其对显微分析的长期贡献至关重要。 UNCW 显微镜实验室是一个多用户设施，长期以来为生物学和海洋生物学、化学和生物化学、心理学、人类学、地质学和地理学以及海洋科学中心等部门提供服务。基于 TEM 的分析是生物和海洋生物学系 (DBMB) 跨学科研究组合中特别重要的组成部分，Tecnai 将支持 UNCW 显微镜实验室的教学、研究和服务任务。拥有超过 40 名教职员工，拥有 3 个学士学位、2 个硕士学位和 1 个博士学位。 DBMB 是海洋生物学项目中该设施最重要的用户，尤其是 TEM。 收购 Tecnai G2 Spirit BioTWIN 后，代表 10 名教员研究的三个主题组将得到特别加强：(1) 海洋微生物细胞生物学、(2) 生物矿化和 (3) 生物医学相关研究。第一个主题包括对导致有害藻华的有害藻类生物学的研究以及对海洋浮游植物无毒物种的检查。还将研究在土壤和海洋水生系统的氮循环中发挥关键作用的细菌海洋微生物。第二个突出主题是生物矿化，它研究甲壳类动物、单细胞浮游植物和有孔虫等生物体如何启动和构建其外部钙化结构。 TEM 分析将允许研究指导 CaCO3 沉积的亚细胞过程，随着海洋酸化对海洋钙化的影响正成为主要的环境问题和国家和国际研究的焦点，这一点变得越来越重要。新TEM支持的第三个研究主题是生物医学相关研究，包括对马疱疹病毒（EHV）作用机制的调查，马疱疹病毒是一种高度传染性的病原体，其感染和传播机制尚不清楚。神经科学相关的研究将涉及哺乳动物的听觉以及海洋无脊椎动物的运动和游泳的感觉生物学。在这两个研究领域，Tecnai 将能够确定对听力损失、头部方向和视野稳定至关重要的神经元通路。最后，Tecnai 将用于研究反应扩散过程如何控制肌肉细胞设计，将肌肉的详细超微结构分析与红色和白色骨骼肌的代谢和结构需求的数学建模相结合。Tecnai G2 Spirit BioTWIN 将支持广泛的基础和应用研究，同样重要的是，Tecnai 和支持设施也将成为该研究的基石。 本科课程提供入门和高级细胞生物学教学，并支持独立的本科生和研究生研究。教育效益将进一步扩展到大学预科学生，因为可视化和探索微生物、组织和细胞的表面和内部结构的能力是可以为学生提供的最有力的体验之一，因为他们面临着将生物学概念与细胞生命联系起来的挑战。同样，教师需要有效的资源来支持他们的努力。 Tecnai 与 UNCW 的相关设施一起，将使生物和海洋生物学系能够制定和实施从 K-12 到硕士和博士的跨领域外展和教育活动。具体来说，UNCW 显微镜设施将支持长期的外展承诺，包括吸引来自代表性不足社区的 K-12 和大学预科学生的活动。这些努力将包括开发高分辨率显微镜实习机会、夏季显微镜研讨会和教师培训机会。此类活动将通过现有的公共外展平台进行，包括北卡罗来纳大学科学、技术、工程和数学教育中心以及与北卡罗来纳大学相关的伊萨克贝尔早期学院高中。