CAREER: Transport Control in Fluidic Micro and Nanochannels

职业：流体微通道和纳米通道中的传输控制

• 批准号: 0844645
• 负责人: Dimiter Petsev
• 金额: $ 40万
• 依托单位: University of New Mexico
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-04-15 至 2015-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0844645&HistoricalAwards=false
• 关键词: CAREER; Transport; Control; Fluidic; Micro

0844645Petsev, D.N.The physical laws governing the small length-scale transport in micro and nanofluidic channels differ from the macroscopic case. The PI will investigate these laws and focus on transport of fluid, current and solutes in nanochannels fabricated in a silica-based matrix. The PI will test the hypothesis that small current leakage across the silica layers affects the electric field. Testing of the hypothesis that the counterion valence is important for the transport in nanochannels will use the same experimental approaches and will add a level of complexity that will allow a better understanding of the transport in confined fluidic nanochannels in the silica media. Finally, examination of the fluid flow and analyte transport in micro and nanofluidic channels using electroosmotic force generated by remotely operated semiconductor diodes and alternate current fields is planned. This study will introduce further complications due to relaxation and polarization effects related to the ionic distribution in the vicinity of the diode/solution interface. The deep understanding of single and multiphase transport at such length-scales is of paramount importance for the successful implementation of micro and nanofluidics in engineering. The execution of the research will improve the knowledge of micro and nanofluidic systems and the design, fabrication and operation of integrated electronic-fluidic chips for micro and nanofluidic applications. Micro and nanofluidics are important thrust areas for the University of New Mexico in both research and education. Selected topics will be introduced in the Introduction to Transport Phenomena undergraduate course that is taught by the PI. Dr. Petsev is also developing a new graduate course on the fundamentals of Nanofluidics, which was taught for the first time recently. The University of New Mexico traditionally has a leading role in the education of Hispanic and Native American in New Mexico. The proposed program will enhance and complement the PI's outreach activities for Hispanic students and set up a strong outreach program that includes Native American high school students. In addition, two students from the high school will join the PI's group for summer hands-on research. The goal of this effort is to encourage and augment the college enrollment of Native American students particularly in the areas of engineering and natural sciences.

0844645 Petsev，D.N.在微和纳米流体通道中控制小长度尺度传输的物理定律与宏观情况不同。PI将研究这些法律，并专注于在硅基基质中制造的纳米通道中的流体，电流和溶质的传输。PI将测试二氧化硅层上的小电流泄漏会影响电场的假设。测试的假设，即反价是重要的纳米通道中的运输将使用相同的实验方法，并将增加一个复杂的水平，这将允许更好地理解在二氧化硅介质中的有限的流体纳米通道中的运输。最后，计划使用由远程操作的半导体二极管和交流电场产生的电渗力检查微和纳米流体通道中的流体流动和分析物运输。这项研究将介绍进一步的并发症，由于在二极管/溶液界面附近的离子分布相关的弛豫和极化效应。在这样的长度尺度上对单相和多相输送的深入理解对于在工程中成功实施微流体和纳米流体是至关重要的。该研究的执行将提高微和纳米流体系统的知识，以及用于微和纳米流体应用的集成电子流体芯片的设计，制造和操作。微流体和纳米流体是新墨西哥州大学在研究和教育方面的重要推动领域。选定的主题将在介绍运输现象的本科课程，是由PI教授介绍。 Petsev博士还在开发一门关于纳米流体基础的新研究生课程，该课程最近首次授课。传统上，新墨西哥州大学在新墨西哥州的西班牙裔和美洲原住民教育中发挥着主导作用。拟议的计划将加强和补充PI的外展活动，为西班牙裔学生，并建立了一个强大的外展计划，包括美洲原住民高中学生。此外，来自高中的两名学生将加入PI的小组进行夏季实践研究。这项工作的目标是鼓励和增加美国土著学生的大学入学率，特别是在工程和自然科学领域。