MRI: Acquisition of an EPR Spectrometer for Research and Education

MRI：购买 EPR 光谱仪用于研究和教育

• 批准号: 1626632
• 负责人: Miroslav Peric
• 金额: $ 25.87万
• 依托单位: The University Corporation, Northridge
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-08-15 至 2019-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1626632&HistoricalAwards=false
• 关键词: MRI; Acquisition; EPR; Spectrometer; Research

With this award from the Major Research Instrumentation Program (MRI) and support from the Chemistry Research Instrumentation Program (CRIF), Professor Miroslav Peric from California State University Northridge and colleagues Radha Ranganathan and Jussi Eloranta have acquired an X-band electron paramagnetic resonance (EPR) spectrometer. This instrument will allow research in a variety of fields such as those that provide insight on how biologically relevant species behave as well as advance environmental studies. In general, an EPR spectrometer yields detailed information on the geometric and electronic structure of molecular and solid state materials. It is also used to obtain information about the lifetimes of free radicals, short-lived, highly reactive species involved in valuable chemical transformations as well as the initiation of pathological tumor growth. These studies impact a number of areas, from the synthesis of inorganic and organic molecules to the development of new solid state materials to compounds of magnetic and biological interest. Employing examples inspired from ongoing research, this instrument is an integral part of research and teaching at California State University Northridge. The instrument provides students with outstanding practical experience in modern instrumentation.The award is aimed at enhancing research and education at all levels, especially in areas such as studying (a) translational and rotational diffusion of spin nitroxide probes in protein-phospholipid aggregates and ionic liquids; (b) mechanistic and kinetic studies of radical intermediates in wastewater treatment; (c) physicochemical characterization of molecular aggregates; (d) electron rich aromatic and diene interactions with electron-poor imidazolium compounds; (e) bimolecular collisions in low-viscosity liquids and (f) solute jump diffusion in supercooled water.

在主要研究仪器计划（MRI）的这一奖项和化学研究仪器计划（CRIF）的支持下，来自加州州立大学北岭分校的Miroslav Peric教授及其同事Radha Ranganathan和Jussi Eloranta获得了X波段电子顺磁共振（EPR）光谱仪。该仪器将允许在各种领域进行研究，例如那些提供有关生物相关物种行为的洞察力以及推进环境研究的领域。一般来说，EPR光谱仪产生分子和固态材料的几何和电子结构的详细信息。它还用于获得有关自由基寿命的信息，这些自由基是参与有价值的化学转化以及病理性肿瘤生长起始的短寿命高反应性物种。这些研究影响了许多领域，从无机和有机分子的合成到新固态材料的开发，再到磁性和生物学意义的化合物。该仪器采用了从正在进行的研究中获得灵感的例子，是加州州立大学北岭分校研究和教学的一个组成部分。该仪器为学生提供了在现代仪器方面的杰出实践经验。该奖项旨在加强各级研究和教育，特别是在以下领域的研究：（a）自旋氮氧探针在蛋白质磷脂聚集体和离子液体中的平移和旋转扩散;（B）废水处理中自由基中间体的机理和动力学研究;（b）废水处理中自由基中间体的动力学研究。（c）分子聚集体的物理化学表征;（d）富电子芳族和二烯与贫电子咪唑化合物的相互作用;（e）低粘度液体中的双分子碰撞和（f）过冷水中的溶质跳跃扩散。

项目成果

The Dobryakov–Lebedev Relation Extended to Partially Resolved EPR Spectra

Dobryakov–Lebedev 关系扩展到部分解析的 EPR 谱

• DOI: 10.1007/s00723-021-01433-z
• 发表时间: 2021
• 期刊: Applied Magnetic Resonance
• 影响因子: 1
• 作者: Bakirov, M. M.;Khairutdinov, I. T.;Schwartz, Robert N.;Peric, Miroslav;Bales, Barney L.
• 通讯作者: Bales, Barney L.

Complementary Fluorescence Emission and Second Harmonic Spectra Improve Bilayer Characterization

互补荧光发射和二次谐波光谱改善双层表征

• DOI: 10.1007/s10895-020-02487-1
• 发表时间: 2020
• 期刊: Journal of Fluorescence
• 影响因子: 2.7
• 作者: Ranganathan, Radha;Burkin, Asher J.;Peric, Miroslav
• 通讯作者: Peric, Miroslav

An analysis of radical diffusion in ionic liquids in terms of free volume theory

用自由体积理论分析离子液体中的自由基扩散

• DOI: 10.1063/1.5138130
• 发表时间: 2020
• 期刊: The Journal of Chemical Physics
• 作者: Merunka, Dalibor;Peric, Miroslav
• 通讯作者: Peric, Miroslav

Electron Paramagnetic Resonance Measurements of Four Nitroxide Probes in Supercooled Water Explained by Molecular Dynamics Simulations

• DOI: 10.1021/acs.jpcb.0c00684
• 发表时间: 2020-05-14
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY B
• 影响因子: 3.3
• 作者: McMillin，Patrick J.;Alegrete，Matthew;Luchko，Tyler
• 通讯作者: Luchko，Tyler

Measuring radical diffusion in viscous liquids by electron paramagnetic resonance

• DOI: 10.1016/j.molliq.2019.01.006
• 发表时间: 2019-03
• 期刊: Journal of Molecular Liquids
• 影响因子: 6
• 作者: D. Merunka;M. Peric