Acquisition of Instrumentation for Transmission Electron Microscopy of Hydrated Polymers

9977458自由与水合聚合物材料的低温制备和电子光学检查有关的三种相互关联的工具将在重大研究仪器计划的支持下获得。这些工具--冷冻显微切割机、冷冻传输系统和低温抗污染器--将用于开发和应用绘制聚合物结构中水的图谱的技术，并研究暴露在水中对形态的影响。它们将在一个已建立的电子光学设施中使用，该设施包括两个现代化的、装备精良的透射式显微镜。最初的工作目标是：(I)纤维增强的环氧基复合材料中界面处水分浓度的空间分辨图谱；以及(Ii)聚合物组织工程支架中支架降解和组织生长的性质。这些工具将对史蒂文斯的研究生研究和教学产生影响。更广泛地说，这些工具将影响纽约大都会地区的一些研究小组，特别是在与组织工程、生物材料和制药相关的科学和工程工作中。在重大研究仪器计划的支持下，将获得用于水合材料的低温制备的工具。这些工具将与透射电子显微镜一起用于研究各种具有潜在技术重要性的聚合物和胶体材料。该仪器将对史蒂文斯理工学院的研究基础设施产生影响。

9977458LiberaThree inter-related tools associated with the cryogenic preparation and electron-optical examination of hydrated polymeric materials will be acquired with support from the Major Research Instrumentation program. These tools - a cryoultramicrotome, a cryotransfer system, and a cryogenic anticontaminator - will be used to develop and apply techniques to map water in polymer structures and to study how exposure to water affects morphology. They will be used in an established electron-optical facility containing two modern and well equipped transmission microscopes. Work will initially target: (i) the spatially-resolved mapping of water concentration at interfaces within fiber- reinforced epoxy-matrix composites; and (ii) the nature of scaffold degradation and tissue ingrowth in polymeric tissue-engineering scaffolds. These tools will impact both graduate research and teaching at Stevens. More broadly, these tools will impact a number of research groups throughout the greater metropolitan New York area, particularly in scientific and engineering efforts associated with tissue engineering, biomaterials, and pharmaceuticals. With support from the Major Research Instrumentation program, tools for the cryogenic preparation of hydrated materials will be acquired. These tools will be used with a transmission electron microscope to study a variety of polymeric and colloidal materials of potential technological importance. This instrument will have an impact on the research infrastructure at Stevens Institute of Technology.