MRI: Track 1 Development of a Combined Optical and Magnetic Resonance Spectroscopy System

MRI：光学和磁共振组合光谱系统的轨道 1 开发

• 批准号: 2320520
• 负责人: Ashok Ajoy
• 金额: $ 87万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2320520&HistoricalAwards=false
• 关键词: MRI; Track; Development; Combined; Optical

This award is jointly supported by the Major Research Instrumentation (MRI), the Chemistry Research Instrumentation, and Chemical Measurement and Imaging (CMI) programs. The University of California at Berkeley is developing an instrument which incorporates nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR) and an optical fluorescence spectrometer to support the research of Professor Ashok Ajoy along with colleague Jeffery Reimer. This instrument facilitates research in the areas of materials science, quantum information science, energy storage, and catalysis. This development project enables the simultaneous manipulation of electronic and nuclear spins of proteins, materials, and molecular systems employing the ability to rapidly transport the sample from low to high or high to low magnetic fields at cryogenic temperatures. By combining the three spectroscopic techniques, the instrument enables users to perform cutting-edge dynamic nuclear polarization (DNP) techniques which significantly improve the sensitivity of magnetic resonance experiments for the thorough characterization of the properties of molecular systems. Students and trainees from the undergraduate to postdoctoral level are involved in the development and testing of the instrument. The completed instrument benefits a wide array of research groups and undergraduate students, including those from diverse backgrounds and from a predominately undergraduate institution in the Bay Area, San Jose State University. Multiple investigators from additional universities and Lawrence Berkeley National Laboratory also benefit from this resource.This award is aimed at enhancing research and education at all levels. The instrument enables the development of an optical dynamic nuclear polarization (DNP) NMR system to study metal-organic frameworks. The instrumentation is also used to probe electrons optically and via spin resonance to uncover the role of interactions with their nuclear environment and thereby enable the study of molecular systems for applications in quantum information science. Additionally, the instrument enables the investigation of the chemical surface structure of bulk and nanoscale materials for enhanced quantum sensors and the development of a sub-micron scale NMR in-situ chemical probe within microdroplets using nuclear spin in nanodiamonds as quantum sensors. The instrument also allows the unique ability to simultaneously probe EPR active systems and perform in-situ DNP measurements of light-harvesting complexes within photosystems. Furthermore, by using the three modalities, this instrument aids in understanding the interplay between the electron g-factor and the resulting optically pumped NMR spectra in bulk or heterostructured semiconductors.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项由主要研究仪器（MRI），化学研究工具以及化学测量和成像（CMI）计划共同支持。加利福尼亚大学伯克利分校正在开发一种仪器，该仪器结合了核磁共振（NMR），电子顺磁共振（EPR）和光学荧光光谱仪，以支持Ashok Ajoy教授与同事Jeffery Reimer的研究。该仪器促进了材料科学，量子信息科学，能源存储和催化领域的研究。 该开发项目可以同时操纵蛋白质，材料和分子系统的电子和核自旋，具​​有在低温温度下快速将样品从低或高或高磁场迅速运输的能力。 通过结合三种光谱技术，该仪器使用户能够执行最先进的动态核极化（DNP）技术，从而显着提高了磁共振实验的灵敏度，以彻底表征分子系统的性质。从本科到博士后一级的学生和学员参与了乐器的开发和测试。完整的仪器受益于各种各样的研究小组和本科生，包括来自不同背景的研究小组以及来自圣何塞州立大学湾区的主要本科机构。来自其他大学和劳伦斯·伯克利国家实验室的多个研究人员也从该资源中受益。该奖项旨在增强各级研究和教育。 该仪器可以开发光学动态核极化（DNP）NMR系统来研究金属有机框架。该仪器还用于光学探测电子，并通过自旋共振来揭示与其核环境相互作用的作用，从而使分子系统用于量子信息科学中的应用。 此外，该仪器可以使用量子量子中的核自旋作为量子传感器，研究量子传感器的体积和纳米级材料的化学表面结构，以及在微核中的亚米克体尺度NMR NMR尺度NMR尺度的开发。该仪器还允许独特的能力同时探测EPR活动系统并对光系统内的光收获复合物进行原位DNP测量。此外，通过使用三种方式，该仪器有助于理解电子G因子和由此产生的散装或异质结构半导体的光学泵送NMR光谱之间的相互作用。该奖项反映了NSF的法定任务，并被认为是通过评估使用的支持，并值得通过评估。基金会的智力优点和更广泛的影响审查标准。