Electron Spin Resonance Spectrometer to Probe Microstructures at Interfaces

CTS-0224418 Ponisseril Somasundaran，Et alColumbia University在先前获得的电子自旋共振光谱仪（ESR）仪器的帮助下，主要研究人员已经能够建立探测固液界面处的聚合物和表面活性剂层的技术。这些研究的结果已经提供了一些新的信息的性质的吸附微观结构。ESR光谱，结合其他技术，已被证明是一个强大的工具，用于研究吸附的分子机制。购买布鲁克EMX 6/1 HX ESR将使他们能够直接原位分析固液界面处聚合物和表面活性剂的纳米结构构象和取向，重要的是，研究它们作为系统参数的函数的变化，并为有效的界面过程制定最佳条件和试剂的指导方针。这项赠款的更广泛影响是，现场ESR设施将有助于奋进调整某些研究生课程，包括光谱方法的实践培训。 此外，它还将培养界面科学领域的专业科学家和工程师。

CTS-0224418Ponisseril Somasundaran, Et alColumbia UniversityWith the help of the Electron Spin Resonance Spectrometer (ESR) instrument acquired previously, the principal investigators have been able to establish techniques for probing polymer and surfactant layers at solid-liquid interfaces. Results of these studies have already provided some new information on the nature of the adsorbed microstructures. ESR spectroscopy, in conjunction with other techniques, has proved to be a powerful tool for studying molecular mechanisms of adsorption. The purchase of the Bruker EMX 6/1 HX ESR will enable them to analyze directly in-situ the nanostructue conformation and orientation of polymers and surfactants at solid-liquid interfaces and, importantly, changes in them as a function of system parameters and to develop guidelines for optimum conditions and reagents for efficient interfacial processes.The broader impact of this grant would be that an onsite ESR facility would aid in the endeavor of tailoring certain graduate courses to include practical training in spectroscopic methods. Also, it would produce professional scientists and engineers in the area of interfacial science.