NIRT- GOALI: Solution-Based Dispersion, Sorting, and Placement of Carbon Nanotubes

NIRT- GOALI：基于解决方案的碳纳米管分散、分选和放置

• 批准号: 0609050
• 负责人: Anand Jagota
• 金额: --
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-08-15 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0609050&HistoricalAwards=false
• 关键词: NIRT; GOALI; Solution; Based; Dispersion

This proposal was received in response to Nanoscale Science and Engineering initiative, NSF05-610, category NIRT. The objective of the research is to develop and study solution-based methods for dispersion, sorting, and placement of carbon nanotubes. The approach is based on the formation of hybrids of carbon nanotubes with DNA that have proven to be effective dispersants, have the ability to separate nanotubes, and result in a dispersion of charged colloidal particles that allow the development of placement techniques. The overall goals are to develop the ability to:1) Place carbon nanotubes at a given location on a substrate with prescribed density and orientation. 2) Sort a heterogeneous sample of carbon nanotubes into all its constituent types.3) Design experimental conditions for controlled placement and separation.4) Predict structure of carbon nanotube/DNA hybrids.Because of their superlative electrical and mechanical properties, carbon nanotubes have great potential for use in applications as varied as strengthening elements in composites, semiconducting channels in nanoelectronics, and as biosensors. Perhaps the biggest obstacle in the way of realizing this potential is the difficulty in processing them, especially via a solution route. Critical problems are effective dispersion, sorting according to length, diameter, and electronic character, and controlled placement on a substrate. If effective ways are found to process carbon nanotubes, it will result in the development of new materials and devices with significant economic and health benefits. Study of the underlying phenomena required for successful work on this problem will require us to tackle several fundamental problems in nanoscale science and engineering. Graduate and undergraduate students participating in the program will be educated in highly interdisciplinary research including biological sciences, chemical engineering, mechanics, physics, and materials science.

该提案是响应纳米科学与工程倡议，NSF 05 -610，类别NIRT。 该研究的目的是开发和研究基于溶液的方法，用于分散，分选和放置碳纳米管。 该方法基于碳纳米管与DNA的混合物的形成，其已被证明是有效的分散剂，具有分离纳米管的能力，并导致带电胶体颗粒的分散，从而允许放置技术的发展。 总体目标是开发以下能力：1）将碳纳米管放置在具有规定密度和取向的基底上的给定位置。2)3）设计实验条件，控制放置和分离。4）预测碳纳米管/DNA杂化物的结构由于碳纳米管具有优异的电学和机械性能，在复合材料的增强元件、纳米电子学的半导体通道和生物传感器等方面具有巨大的应用潜力。 也许实现这一潜力的最大障碍是处理它们的困难，特别是通过解决方案。 关键的问题是有效的分散，根据长度，直径和电子字符分类，并控制放置在基板上。 如果找到有效的方法来处理碳纳米管，它将导致新材料和设备的开发，具有显着的经济和健康效益。 要想成功解决这个问题，就必须研究纳米级科学和工程中的几个基本问题。 参加该计划的研究生和本科生将接受高度跨学科研究的教育，包括生物科学，化学工程，力学，物理学和材料科学。