MRI: Acquisition of an Advanced Multi-Functional Wide-Wavelength-Range Fourier Transform Infrared Spectrometer for Multi-Materials Characterization

这个主要的研究仪器项目是由材料研究部和促进竞争性研究的既定计划共同资助的。非技术描述：具有广泛测量能力的红外光谱仪有利于爱荷华州立大学和附近4年制科学院的教师和学生的研究和教学需求，是中西部地区红外光谱和显微镜的研究资源。该仪器支持广泛的跨学科研究领域，包括材料科学，化学，物理，农业，土木工程，电气工程和化学工程。该仪器的应用领域包括固态电池、固态材料、细胞膜、植物基因组编辑、病变组织表征、光学材料、增材制造和玻璃科学。该仪器推进了这些研究领域，并为博士后研究员、研究生和本科生研究人员提供培训。红外光谱仪为材料表征、水泥混凝土和工程设计课程提供了便利，并为当地和美国各地的中学生介绍了红外光谱，用于测量不同地点的温室气体浓度。技术描述：该主要研究仪器（MRI）拨款购买的红外光谱仪具有四个主要属性：从深远红外到紫外的宽波长范围，用于探测材料的全光学响应；探测材料中微小但关键的化学差异的高灵敏度；探测和分离相似但不同的化学物质的高光谱分辨率。红外显微镜和表面反射能力探测材料的表面化学和拓扑结构。爱荷华州立大学至少有7个研究项目受益于此次收购，包括氧-硫化物-氮化物混合玻璃状固体电解质，扩大了对固态电池固体电解质化学的理解；分级骨和牙釉质生物材料的生物力学形态、功能和性能用于CRISPR/Cas9基因编辑的改进传递系统中不同结构和机制的相互作用；混合一维和二维磁性材料的研究；提高农用动物疫病感染鉴别能力的生物组织；化学信号编码红外光谱，将细胞膜组成与荧光显微镜进行的生物物理测量相关联；以及新型二维材料中的量子电荷动力学和激发。该仪器还为四年制科学院物理系教师和本科生在玻璃中的离子输运、钒酸盐玻璃的激光改性、高碱硼酸盐玻璃以及利用新型闪烁材料进行高能粒子探测等方面的研究提供了便利。该奖项反映了美国国家科学基金会的法定使命，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 Major Research Instrumentation project is jointly funded by the Division of Materials Research and the Established Program to Stimulate Competitive Research. Nontechnical Description:An infrared spectrometer with a wide range of measuring capabilities benefits the research and teaching needs of faculty and students at Iowa State University and nearby 4-year Coe College and is a Midwest regional research resource for infrared spectroscopy and microscopy. This instrument supports a broad range of interdisciplinary research in fields that include materials science, chemistry, physics, agriculture, civil engineering, electrical engineering, and chemical engineering. Application areas for the instrument are solid-state batteries, solid-state materials, cell membranes, plant genome editing, characterization of diseased tissues, optical materials, additive manufacturing, and glass science. This instrument advances these research fields and provides training to postdoctoral fellows and graduate and undergraduate student researchers. The infrared spectrometer facilitates courses in materials characterization, cement concrete, and engineering design and enables activities that introduce infrared spectroscopy to secondary school students locally and across the US in measuring greenhouse gas concentrations across various locations.Technical Description:The infrared spectrometer purchased with this Major Research Instrumentation (MRI) grant has four major attributes, wide wavelength range from deep far-infrared to ultraviolet for probing the full optical response of a material, high sensitivity for probing small but critical chemical differences in materials, high spectral resolution for probing and separating similar but distinct chemical species, and infrared microscopy and surface reflectance capabilities for probing materials surface chemistry and topologies. At least seven research projects at Iowa State University benefit from this acquisition and include mixed oxy-sulfide-nitride glassy solid electrolytes that expand the understanding of solid electrolyte chemistry of solid-state batteries; biomechanical form, function, and performance in hierarchical bone and enamel biological materials; interactions of different structures and mechanisms in improved delivery systems used for CRISPR/Cas9 gene editing; studies of hybrid 1D and 2D magnetic materials; biological tissues which improve the discrimination of disease transfection in agricultural animals; chemical signal encoded infrared spectra to correlate the cell membrane composition with the biophysical measurements performed by fluorescence microscopy; and quantum charge dynamics and excitations in novel two-dimensional materials. This instrument also benefits the research of Physics faculty and undergraduate students from 4-year Coe College in ionic transport in glass, laser modification of vanadate glasses, high alkali borate glasses, and high energy particle detection using novel scintillating materials.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.