Materials World Network: Pan-American Network for Electron Microscopy and Spectroscopy of Nanomaterials

该项目为泛美纳米材料电子显微镜和光谱学网络建立了框架。该活动最初涉及几所美国大学，与巴西和墨西哥领先大学的同行以及阿根廷研究机构合作。亚利桑那州立大学是该网络的主要枢纽，负责托管网络网站。其他美国参与机构包括哈佛大学、利哈伊大学和斯坦福大学。获得先进的仪器可促进跨国联网，促进尖端纳米材料研究，同时提高对专业仪器的能力和益处的认识。美国的主办机构配备了不同类型的高度复杂的显微镜和光谱仪器。畸变校正电子显微镜和探针校正微量分析用于确定微观结构和元素组成，离轴电子全息用于研究纳米级静电和磁场，原位环境透射电子显微镜（TEM）用于观察在原子尺度上发生的合成过程在真实的时间。来自墨西哥和巴西的学生和博士后工作者前往美国进行显微镜观察，从而获得先进表征方法的宝贵经验。来自美国机构的参与者前往国外同行，观察和参与纳米材料合成工作，并就最近的显微镜发展和新应用举办研讨会。纳米结构材料的生长和合成的发展使得通常在块体材料中没有发现的新特性被发现和利用。定位和识别原子配置的技术是在这些纳米结构中实现最佳物理行为的关键。参与这项合作努力的经验丰富的研究人员团队的互补专业知识确保了对纳米结构材料行为的宝贵新见解。像差校正电子显微镜，探针校正光谱，电子全息，氦离子显微镜和环境原位TEM MWN参与者的可用性将大大有助于阐明生长机制，这可能是在未来生产新型纳米材料必不可少的。该网络加强了泛美地区材料科学家之间的联系，使合作更加密切，并为下一代材料科学家提供先进表征技术方面的教育和培训。因此，这一合作项目促进了国际交流与合作，并为参与的学生和年轻科学家提供了更好的教育、培训和联网机会，他们将接触到不同的科学文化和研究环境，极大地丰富了他们的学习经验。

This project establishes the framework for a Pan-American Network for Electron Microscopy and Spectroscopy of Nanomaterials. The activity initially involves several US universities, collaborating with counterparts at leading Brazilian and Mexican universities, and an Argentinian research institute. Arizona State University serves as the primary hub for the Network, with responsibility for hosting the network website. Other US participating institutions include Harvard University, Lehigh University and Stanford University. Access to advanced instrumentation promotes trans-national networking, and facilitates cutting-edge nanomaterials research, while generating better awareness of the capabilities and benefits of specialized instruments. The host US institutions are well-equipped with different types of highly sophisticated instruments for microscopy and spectroscopy. Aberration-corrected electron microscopy and probe-corrected microanalysis is used to determine microstructure and elemental composition, off-axis electron holography is used to study nanoscale electrostatic and magnetic fields, and in situ environmental transmission electron microscopy (TEM) is used to observe synthesis processes at the atomic scale taking place in real time. Students and postdoctoral workers from Mexico and Brazil travel to the US to carry out microscopy observations and thereby gain invaluable experience in advanced characterization methods. Participants from the US institutions travel to their counterparts abroad to observe and participate in nanomaterials synthesis efforts, and to conduct workshops on recent microscopy developments and novel applications. Developments in growth and synthesis of nanostructured materials enable novel properties not normally found in bulk materials to be discovered and exploited. Techniques for locating and identifying atomic configurations are then essential in the quest for realizing optimal physical behavior in these nanostructures. The complementary expertise of the highly experienced teams of researchers involved in this collaborative effort ensures that invaluable new insights into the behavior of nanostructured materials will be obtained. The availability of aberration-corrected electron microscopy, probe-corrected spectroscopy, electron holography, helium-ion microscopy and environmental in situ TEM to the MWN participants will assist greatly in elucidating growth mechanisms that are likely to be essential in the future production of novel nanomaterials. The Network strengthens links between materials scientists in the Pan-American region, enabling closer collaborations and providing education and training in advanced characterization techniques for the next generations of materials scientists. This collaborative project thus promotes international exchange and cooperation, and provides enhanced educational, training and networking opportunities for the participating students and junior scientists, who will be exposed to different scientific cultures and research environments, greatly enriching their learning experience.