RUI: Time-Dependent Electroosmotic Flow Studies in Coated Capillaries

惠蒂尔学院的金伯利·施勒姆教授得到了分析和表面化学项目的支持，并获得了一笔专注于电渗透流动(EOF)的RUI补助金。其目的是提高对熔融二氧化硅毛细管电渗漏的认识，评价和表征新的涂层材料，并研究聚电解质多层膜的表面形貌与电渗漏的关系。将使用光漂白区迁移(PBZM)来实现这些目标。用于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”而得到改进。活动的第二阶段将能够预测当溶剂/溶质发生变化时EOF的变化。该小组还将研究涂层过程的快速评估，并研究聚电解质多层系统中表面形态与EOF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础性贡献，也为本科生提供了一个独特的跨学科机会。许多新兴的小型化技术都依赖于EOF。此外，活动的结果将对生物医学研究界有所帮助。

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.