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.

该提案是为了回应Nanscale Science and Engineering Initiative，NSF05-610，类别NIRT。 该研究的目的是开发和研究基于解决方案的碳纳米管分散，分类和放置方法。 该方法基于证明是有效的分散剂的DNA的碳纳米管的杂种形成，具有分离纳米管的能力，并导致带电胶体颗粒的分散体，从而允许开发放置技术。 总体目标是发展以下能力：1）将碳纳米管放在给定位置的碳纳米管上，在规定密度和方向的基板上。 2）将碳纳米管的异质样品排成其所有组成类型。3）设计用于受控放置和分离的实验条件。4）预测碳纳米管/DNA混合的结构。在复合材料中加强元素，纳米电子学中的半导体通道以及作为生物传感器中的元素中使用的潜力。 实现这一潜力的最大障碍也许是处理它们的困难，尤其是通过解决方案路线。 关键问题是有效的分散，根据长度，直径和电子特征进行分类，并在基板上进行受控位置。 如果发现有效的方法来处理碳纳米管，则将导致开发具有重大经济和健康益处的新材料和设备。 研究成功工作所需的基本现象将需要我们解决纳米级科学和工程学中的几个基本问​​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。