RUI: Time-Dependent Electroosmotic Flow Studies in Coated Capillaries

惠蒂尔学院的Kimberly Schrum教授得到了分析和表面化学项目的支持，并获得了专注于电渗流（electroosmotic flow）的RUI资助。 其目标是提高熔融石英毛细管中的介电常数的理解，评估和表征新的涂层材料，并研究介电常数多层膜的表面形态和介电常数之间的关系。 将使用光漂白区迁移（PBZM）来达到目的。PBZM测量的仪器将通过开发用于流量测量的中性标记染料的“调色板”来改进。活动的第二阶段将能够预测随着溶剂/溶质变化而发生的溶解度变化。该小组还将研究涂层工艺的快速评估，并研究表面形态与纳米多层系统之间的关系。拟议的活动代表了对分离科学，纳米技术和材料科学领域的基本贡献，也为本科生提供了一个独特的跨学科机会。 在许多新兴的小型化技术中，都依赖于MEMS。 此外，该活动的成果将对生物医学研究界有用。

Professor Kimberly Schrum of Whittier College is supported by the Analytical and Surface Chemistry Program with a RUI grant focused on electroosmotic flow (EOF). The goals are to improve the understanding of EOF in fused silica capillaries, evaluate and characterize new coating materials, and study the relationship between surface morphology and EOF for polyelectrolyte multilayers. Photobleaching zone migration (PBZM) will be used to reach the objectives. An instrument for PBZM measurements will be improved by developing a 'palette' of neutral marker dyes for flow measurements. The second phase of the activity will enable predictions of changes in EOF as solvent/solute changes take place. The group will also study rapid assessment of coating processes and examine the relationship between surface morphology and EOF in polyelectrolyte multilayer systems.The proposed activity represents a fundamental contribution to the fields of separation science, nanotechnology and materials science and also provides undergraduate students with a unique interdisciplinary opportunity. EOF is relied on in many of the emerging miniaturization technologies. In addition, the results of the activity will be of use to the biomedical research community.