MRI: Acquisition of Laser Light Scattering Instrumentation

MRI：获取激光光散射仪器

• 批准号: 0116713
• 负责人: Joseph Williamson
• 金额: $ 9万
• 依托单位: Willamette University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0116713&HistoricalAwards=false
• 关键词: MRI; Acquisition; Laser; Light; Scattering

This award from the Major Research Instrumentation (MRI) Program will enable the Chemistry Department at Willamette University to acquire laser light scattering instrumentation. With these new capabilities, the PI will investigate the nature of intermolecular interactions in binary liquid mixtures by analyzing both Rayleigh and Raman scattering intensities as a function of composition and temperature. In addition, in collaboration with Dr. Jeffrey Willemsen, he will study the antispermatogenic nature of gossypol derivatives. Student researchers at this undergraduate institution will also participate in these projects. Liquid solutions and the solvation process are vital to both the scientific community and the chemical industry, but the liquid phase is a challenge to understand and model. The close proximity of molecules in a liquid makes the influence of the intermolecular potential impossible to ignore, and the lack of long range order in a liquid further complicates matters. Fortunately, motion and dynamics in a solution may be studied by directing a laser onto the liquid sample and measuring the intensity and frequency of the scattered light. Static and dynamic light scattering techniques represent an indispensable tool for the in-situ characterization of complex liquid systems.

这项来自主要研究仪器（MRI）计划的奖项将使威拉米特大学化学系能够获得激光散射仪器。 有了这些新的能力，PI将调查的性质，在二元液体混合物中的分子间相互作用，通过分析瑞利和拉曼散射强度作为组成和温度的函数。 此外，他还将与Jeffrey Willemsen博士合作，研究棉酚衍生物的抗精子作用。 该大学的学生研究人员也将参与这些项目。 液体溶液和溶剂化过程对科学界和化学工业都至关重要，但液相是理解和建模的挑战。 液体中分子的紧密接近使得分子间势的影响不可忽视，并且液体中缺乏长程有序进一步使问题复杂化。 幸运的是，可以通过将激光引导到液体样品上并测量散射光的强度和频率来研究溶液中的运动和动力学。 静态和动态光散射技术是复杂液体体系原位表征不可或缺的工具。