MRI: An EPR spectrometer for teaching and research

由于获得了主要研究仪器项目（MRI）的奖励，来自爱德华兹维尔南伊利诺伊大学的Michael J. Shaw和同事Yun Lu， Eric J. Voss, Paul E. Wanda和Chin-Chuan Wei升级了电子顺磁共振（EPR）光谱仪。该光谱仪将允许核心用户进行以下研究：(1)导电分子线的功能化；(2)细胞凋亡过程中细胞膜流动性的变化；(3)动植物对活性物质的调控及NO合成机制；(4)有机合成中消除有机溶剂的努力；(5)金属-联吡啶配合物对DNA的切割作用；(6)溶胶-凝胶合成可变组分玻璃；(7)二氟化氙反应中的自由基；(8)锂离子电池多孔双金属阴极的研究。EPR光谱仪产生分子和分子电子结构的信息。它也可以用来获得自由基的寿命信息，自由基是肿瘤生长和/或各种化学反应的起始所必需的短命物种。这些研究将在许多领域产生影响，如无机化学、生物化学、生物学、环境和电池制造。光谱仪还将被用作学生的培训工具，同时产生有用的知识，并为伊利诺伊州西南部的广大用户提供服务。

With this award from the Major Research Instrumentation program (MRI), Michael J. Shaw and colleagues Yun Lu, Eric J. Voss, Paul E. Wanda and Chin-Chuan Wei from Southern Illinois University at Edwardsville upgrade an Electron Paramagnetic Resonance (EPR) spectrometer. This spectrometer will allow a core of users to pursue research in: (1) functionalization of conducting molecular wires, (2) changes in cell membrane fluidity during apoptosis, (3) regulation of reactive species by plants and animals and mechanisms of NO synthesis, (4) efforts to eliminate organic solvents in organic synthesis, (5) Cleavage of DNA by metal-bipyridyl complexes, (6) sol-gel synthesis of variable composition glasses, (7) free radicals in xenon difluoride reactions, and (8) study of porous bimetallic cathodes for lithium-ion batteries.An EPR spectrometer yields information on the molecular and electronic structure of molecules. It may also be used to obtain information about the lifetimes of free radicals, short-lived species that are often essential for the initiation of tumor growth and/or a variety of chemical reactions. These studies will have an impact in a number of areas, such as inorganic chemistry, biochemistry, biology, the environment and battery manufacturing. The spectrometer will also be used as a training tool for the students while generating useful knowledge and serving a broad base of users in Southwestern Illinois.