NEMS Fluid Sensor Based on Suspended Nanotubes and Nanowires

基于悬浮纳米管和纳米线的 NEMS 流体传感器

• 批准号: 0702766
• 负责人: Jun Lou
• 金额: --
• 依托单位: William Marsh Rice University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-05-01 至 2011-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0702766&HistoricalAwards=false
• 关键词: NEMS; Fluid; Sensor; Based; Suspended

Lou Abstract NEMS Fluid Sensors Based on Suspended Nanotubes and Nanowires-The objective of this research is to explore the behaviors of Nanoelectro-mechanical system (NEMS) based sensors employing suspended single walled carbon nanotubes (SWNT) or metallic nanowires (MNW) in liquids. The approach is outlined as following: 1) Fabrication of NEMS sensors based on single suspended SWNT/MNW; 2) Systematic characterization of the important mechano-electrical behaviors (both resonant and non-resonant transient behaviors) of SWNT/MNW at a single-device level and 3) investigation of their dependence on various environments (in particular liquids). 4) Exploration of potential device applications, such as liquid characterization and molecules sensing. Intellectual Merit: The research proposed here represents a vital step toward fundamental physical understanding of SWNT/MNW behaviors in liquid environments, which has been largely unexplored but is of great scientific and technological interests. More importantly, the potential integration of nanomechanical suspensions/resonators and micro/nano fluidics (two previously largely disjoint fields) creates exciting opportunities to explore new phenomena and to breed new applications in fresh directions. Broader Impact: The versatile and robust NEMS fluid sensors proposed have great potentials to become a disruptive innovation with many critical applications in medicine, energy, environment and national security. In addition to research program, graduate and under-represented undergraduate students will be actively recruited to work on this cutting-edge research. Founded by the PI, the newly established Paslay Nanoscale Science and Engineering Educational Lab at Rice University will serve as a platform for outreach activities involving high school students and science teachers from the Houston Independent School District, and to also communicate findings from this research to the general public.

基于悬浮纳米管和纳米线的 NEMS 流体传感器 - 本研究的目的是探索基于纳米机电系统 (NEMS) 的传感器在液体中采用悬浮单壁碳纳米管 (SWNT) 或金属纳米线 (MNW) 的行为。该方法概述如下： 1）基于单悬浮SWNT/MNW制作NEMS传感器； 2) 在单器件水平上系统地表征 SWNT/MNW 的重要机电行为（谐振和非谐振瞬态行为），3) 研究它们对各种环境（特别是液体）的依赖性。 4）探索潜在的器件应用，例如液体表征和分子传感。学术价值：这里提出的研究代表了对液体环境中 SWNT/MNW 行为的基本物理理解的重要一步，该行为在很大程度上尚未被探索，但具有巨大的科学和技术兴趣。更重要的是，纳米机械悬架/谐振器和微/纳米流体（两个以前基本上不相交的领域）的潜在集成为探索新现象和在新方向培育新应用创造了令人兴奋的机会。更广泛的影响：所提出的多功能且强大的 NEMS 流体传感器具有成为颠覆性创新的巨大潜力，在医学、能源、环境和国家安全领域具有许多关键应用。除了研究项目外，还将积极招募研究生和代表性不足的本科生来从事这项前沿研究。由 PI 创立的莱斯大学新成立的 Paslay 纳米科学与工程教育实验室将作为休斯顿独立学区高中生和科学教师参与的外展活动平台，并将这项研究的结果传达给广大公众。