MRI: Track 1 Acquisition of a 500 MHz solid/liquid-state NMR to Expand Interdisciplinary Research and Education at Howard University

该奖项由主要研究仪器和化学研究仪器计划共同支持。 霍华德大学正在购买一台500 MHz的溶液和固态核磁共振（NMR）光谱仪，该光谱仪配备了宽带探头和三重共振固体探头，以支持Steven Cummings教授沿着与同事阿莫尔Kulkami、Dharmaraj Raghavan、Sung Kim和Timothy Ramadhar的研究。该仪器促进了催化剂设计、生物化学、高分子化学、纳米材料和药物化学领域的研究。一般来说，NMR光谱是化学家用来阐明分子结构的最有力的工具之一。它用于识别未知物质，表征分子内原子的特定排列，并研究溶液或固态分子之间相互作用的动力学。对于从事前沿研究的化学家来说，使用最先进的NMR光谱仪是必不可少的。该工具提高了教育，研究和研究培训在各级多个部门在霍华德大学，历史上的黑人大学（HBCU）。 这一工具进一步促进了该地区少数民族服务机构之间的研究和教育机会，包括摩根州立大学、鲍伊州立大学和Gallaudet大学。 授予500 MHz NMR光谱仪的目的是加强各级研究和教育，特别是在金属有机框架，生物系统和材料以及纳米粒子的表征等领域。具体而言，该仪器影响了专注于将碳硼烷化学与卡宾和吡啶配体融合的研究。 该仪器也可用于复杂的生物活性化合物的结构研究，通过结晶海绵方法的结构和机理分析。 此外，该仪器还可以对金黄色葡萄球菌生物膜进行成分分析。 其他研究包括外泌体的代谢组学和组成分析，以寻找1型糖尿病的标志物，以及确定小分子与蛋白质NLRP 3炎性体的结合模式。为了应对全球氦气供应的挑战和2022年CHIPS和科学法案，该仪器的采购包括一个超导磁体和一个低损耗低温恒温器，减少了该机构的氦气消耗。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This award is jointly supported by the Major Research Instrumentation and the Chemistry Research Instrumentation programs. Howard University is acquiring a 500 MHz solution and solid-state Nuclear Magnetic Resonance (NMR) spectrometer equipped with a broadband probe and a triple-resonance solids probe to support the research of Professor Steven Cummings along with colleagues Amol Kulkami, Dharmaraj Raghavan, Sung Kim, and Timothy Ramadhar. This instrument facilitates research in the areas of catalyst design, biochemistry, polymer chemistry, nanomaterials, and medicinal chemistry. In general, NMR spectroscopy is one of the most powerful tools available to chemists for the elucidation of the structure of molecules. It is used to identify unknown substances, to characterize specific arrangements of atoms within molecules, and to study the dynamics of interactions between molecules in solution or in the solid state. Access to state-of-the-art NMR spectrometers is essential to chemists who are carrying out frontier research. This instrument enhances the educational, research, and research training at all levels in multiple departments at Howard University, a Historically Black University (HBCU). This instrument further propagates research and educational opportunities between the Minority-Serving Institutions in the region including Morgan State University, Bowie State University, and Gallaudet University. The award of the 500 MHz NMR spectrometer is aimed at enhancing research and education at all levels, especially in areas such as characterizations of metal-organic frameworks, biological systems and materials, and nanoparticles. Specifically, the instrument impacts research focused on fusing carborane chemistry with carbene and pyridinate ligands. The instrument is also used for structural investigations of complex bioactive compounds by structural and mechanistic analysis of the crystalline sponge method. Additionally, this instrument enables the composition analysis of Staphylococcus aureus biofilm. Other investigations include the metabolome and composition analysis of exosome in search of markers for Type 1 diabetes, and the determination of the binding mode of small molecules to the protein NLRP3 inflammasome. In response to global helium supply challenges and the 2022 CHIPS and Science Act, the acquisition of this instrument includes a superconducting magnet with a low loss cryostat reducing the institution’s consumption of helium.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.