NER: Nanoparticle Assembly of Nanowire Composites and Nano- and Microfluidic Vasculature

摘要提案编号：CTS-0609157首席研究员：吉尔克里斯特，詹姆斯F.附属机构：利哈伊大学提案标题：NER：纳米线复合材料和纳米和微流体血管的纳米粒子组装知识产权拟议的探索性研究计划将开发一种方法，创建精密自组装纳米和微结构材料使用纳米粒子介电泳。从该过程产生两类材料：1）具有各向异性导电性和热传输性质的复合材料和2）具有嵌入的微脉管系统的结构。将建立该过程形成嵌入式纳米线复合材料的可行性，并进行参数研究以评估电场强度和几何形状、纳米颗粒尺寸和极化、复流体介电常数和弹性以及基质固化对形成速率和最终纳米线结构的影响。使用热可逆凝胶，可以形成这种纳米复合材料以供临时使用，然后溶解和再分散以供重新使用。利用溶解的纳米线生长线性或分形沿着局部电场线作为模板的脉管系统，它应该是可能的决定的结构和连接的微流体networks.Broader影响：在粘合剂中直接形成纳米线复合材料的能力有可能流线化和简化各种电子设备的处理。在不需要精确对准的情况下，部件和基板之间的连接的自组装可能对传感器和显示器生产技术具有重大影响。使用所提出的纳米粒子自组装方法创建微血管系统可以允许在资源有限的情况下（例如在战场或太空中）使用微化学过程的制造点。该计划将直接教育研究生，产生的结果将在课程，期刊出版物，会议上传播，任何美学质量的图像将被整合到目前正在开发的利哈伊谷艺术/纳米项目中。拟议的研究结果将显着影响两个层次的纳米制造和纳米器件和系统架构领域的有源纳米结构和纳米系统计划。

ABSTRACTProposal Number: CTS-0609157 Principal Investigator: Gilchrist, James F.Affiliation: Lehigh University Proposal Title: NER: Nanoparticle Assembly of Nanowire Composites and Nano- and Microfluidic Vasculature Intellectual MeritThe proposed exploratory research program will develop a method of creating precision self-assembled nano- and micro-structured materials using nanoparticle dielectrophoresis. Two classes of materials result from this process: 1) composites having anisotropic electrical conductivity and thermal transport properties and 2) structures with embedded microvasculature. The feasibility of this process to form embedded nanowire composites will be established and parametric studies will be performed to evaluate the effect of electric field strength and geometry, nanoparticle size and polarization, complex fluid permittivity and elasticity, and matrix solidification on rate of formation and final nanowire structures. Using thermoreversible gels, such nanocomposites may be formed for temporary use and then dissolved and redispersed for re-use. Using dissolution of nanowires grown linearly or fractally along local electric field lines as a template for vasculature, it should be possible to dictate the structure and connectivity of microfluidic networks.Broader Impacts: The ability to directly form nanowire composites in adhesives has the potential to streamline and simplify the processing of various electronic devices. Self assembly of connections between components and substrates without the need for precision alignment may have significant impact on sensor and display production technologies. Creation of microvasculature using the proposed nanoparticle self assembly method could allow point-of-use fabrication of microchemical processes in situations of limited resources such as on the battlefield or in space. This program will directly educate a graduate student and the results generated will be disseminated in courses, in journal publications, at conferences, and any images of an aesthetically pleasing quality will be integrated into a Lehigh Valley Art/Nano project currently under development. The results of the proposed research will significantly impact both the hierarchical nanomanufacturing and nanoscale devices and system architecture areas of the Active Nanostructures and Nanosystems Program.