Characterization and Modeling of Novel Dielectrophoretic Electropolymerization Micromanufacturing Process

新型介电泳电聚合微制造工艺的表征和建模

• 批准号: 1661877
• 负责人: Lawrence Kulinsky
• 金额: $ 30万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-10-01 至 2021-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1661877&HistoricalAwards=false
• 关键词: Characterization; Modeling; Novel; Dielectrophoretic; Electropolymerization; Characterization; Modeling; Novel; Dielectrophoretic; Electropolymerization

Three-dimensional micro-electrodes have a wide range of current and emerging applications in electronics, power conversion and storage, in various lab-on-a-chip (LOC) applications, and in various sensors. Presently there is no fabrication technique that can offer scalable mass production of three dimensional micro-electrodes. In these processes, a cutting tool, a collimated light source or a heat source needs to scan over all the micro-features to be created, a long and time consuming process that compromises production rates and cost. This project presents an integrated research plan to study, characterize, and model the newly developed Dielectrophoretic Electropolymerization (DEP EP) process for scalable manufacturing technology. The process combines dielectrophoresis (DEP) and sequential electropolymerization. DEP selectively attracts micro- and nano-particles suspended in solution to microelectrodes; sequential electropolymerization captures particles on the surface of the electrodes. The resulting polypyrrole (PPy) layer is conductive, thus enabling the mass production of inexpensive microelectrodes for scientific and engineering applications in the areas of biotechnology, life sciences, energy production and storage, organic electronics, and chemical engineering. It is expected that the process can also be used to create new photonic devices and superior whole cell biosensor platforms for study of water quality and drug discovery. This project will involve graduate and undergraduate students from the University of California, Irvine as well as community college students from Saddleback College and Mt. St. Antonio College. The outreach activities include close mentoring of one middle school and one high school science teachers from public schools with predominantly underrepresented minority student populations from the Los Angeles Unified School District. Monthly visits of the PI and graduate students to these schools, as well as school visits to the PI's university lab are planned. The results and insights gained during the research will be incorporated into undergraduate and graduate courses taught by the PI as well as disseminated in articles, conferences, and postings on the group?s website.This study will result in a validated model of the Dielectrophoretic Electropolymerization (DEP EP) process, allowing process control of scalable mass-production of three-dimensional electrodes patterned with micro-particles or aligned nano-tubes. The objectives of the project are: 1) to characterize and model the dielectrophoretic electropolymerization micromanufacturing process for attraction and attachment of micro- and nano-particles to electrodes to include interplay between electroosmotic forces, dielectrophoretic forces, and dynamic polymerization process; 2) to develop validated models for creation of three specific types of patterned microelectrodes: (a) micro- and nano-particles positioned at specific locations on electrodes (for example, evenly distributed particles); (b) creation of hierarchical (fractal) microelectrodes; and (c) alignment across microelectrodes and creation of fuzed carbon Ohmic contacts for nano-fibers and nano-tubes.

在各种实验室（LOC）应用中以及各种传感器中，三维微电极在电子，功率转换和存储中具有广泛的电流和新兴应用。目前，没有制造技术可以提供三维微电极的可扩展质量产生。在这些过程中，需要切割工具，准直的光源或热源需要扫描所有要创建的微功能，这是一个漫长而耗时的过程，损害了生产率和成本。该项目提出了一项综合研究计划，以研究，表征和建模新开发的针对可扩展制造技术的新开发的介电电聚合物（DEP EP）过程。该工艺结合了介电性（DEP）和顺序电聚合。 Dep选择性地吸引了悬浮在微电极溶液中的微粒子和纳米粒子。顺序电聚合捕获电极表面上的颗粒。所得的多吡咯层（PPY）层是导电的，因此可以在生物技术，生命科学，能源生产和存储，有机电子学和化学工程领域的科学和工程应用中大量生产廉价的微电极。预计该过程还可以用于创建新的光子设备和优质的全细胞生物传感器平台，以研究水质和药物发现。该项目将涉及来自加利福尼亚大学，尔湾分校的研究生和本科生，以及来自Saddleback College和St. Antonio College的社区大学学生。外展活动包括对一所中学的密切指导和来自公立学校的一名高中科学教师，这些公立学校的代表人数为洛杉矶统一学区的代表性不足的少数族裔学生人数。计划每月访问PI和研究生到这些学校，以及对PI大学实验室的学校访问。 The results and insights gained during the research will be incorporated into undergraduate and graduate courses taught by the PI as well as disseminated in articles, conferences, and postings on the group?s website.This study will result in a validated model of the Dielectrophoretic Electropolymerization (DEP EP) process, allowing process control of scalable mass-production of three-dimensional electrodes patterned with micro-particles or aligned纳米管。 该项目的目标是：1）表征和建模，用于吸引和附着微型和纳米粒子到电极上的介电摄取电聚合过程，以包括电体力量，介电粒子力和动态聚合过程之间的相互作用； 2）开发经过验证的模型来创建三种特定类型的图案微电极：（a）位于电极上特定位置的微粒子（例如，均匀分布的颗粒）； （b）创建层次（分形）微电极； （c）跨微电极对齐，并创建用于纳米纤维和纳米管的引诱碳欧马式接触。