Plasmonic Spectra and Sensing of Individual Subwavelength Particles Under the IR Microscope: Cells, Inkjet Spots, and Airborne Dust

该奖项由化学系化学测量和成像项目资助，俄亥俄州立大学的James V. Coe教授和他的研究生和本科生研究人员将获得资助，以开发颗粒物质的光谱研究方法。这项研究将使用带有亚波长大小孔阵列的金属薄膜来获得被捕获粒子的等离子体增强红外光谱。Coe小组还将致力于开发、校准和测试用于分析获得的光谱的Mie-Bruggeman模型。研究人员将研究来自各种环境的空气尘埃颗粒的光谱，并将研究用乳胶球和喷墨斑点修饰的阵列的生产。研究人员还将尝试建造一种能够记录单个粒子光谱的仪器。红外光谱学是一种重要的分析方法，它能提供有关物质化学成分的丰富而详细的信息。科教授和他的学生同事的工作旨在为科学家提供有关颗粒物化学成分的信息。这项研究很重要，因为研究小组研究的小颗粒与可导致各种健康影响的可吸入颗粒相当。除了这项研究的更广泛的科学影响，参与这项研究的研究生将接触到分析化学的前沿研究与一个有才华的研究人员和教育家。

In this award, funded by the Chemical Measurement and Imaging Program of the Division of Chemistry, Professor James V. Coe of the Ohio State University and his graduate student and undergraduate student researchers will be supported to develop methods for the spectroscopic study of particulate matter. The research will use metal films with arrays of subwavelength-sized holes to obtain plasmonic-enhanced infrared spectra of trapped particles. The Coe group will also work on developing, calibrating and testing a Mie-Bruggeman model for analyzing the spectra that are obtained. The researchers will study the spectra of airborne dust particles from a variety of environments and will investigate the production of arrays modified with latex spheres and inkjet spots. The researchers will also attempt to build an instrument capable of recording the spectra of single particles.Infrared spectroscopy is an important analytical method that gives rich, detailed information about the chemical composition of matter. The work of Professor Coe and his student colleagues is aimed at providing scientists with information about the chemical composition of particulate matter. This research is important in that the small particles that the groups study are comparable to the kinds of respirable particles that can lead to a variety of health impacts. Besides the broader scientific impact of this research, the research students participating in this research will be exposed to cutting-edge research in analytical chemistry with a talented researcher and educator.