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Interstellar molecules and nanoparticles

星际分子和纳米粒子

基本信息

批准号：
116928-2010
负责人：
Duley, Walter
金额：
$ 3.57万
依托单位：
University of Waterloo
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2010
资助国家：
加拿大
起止时间：
2010-01-01 至 2011-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=451455
关键词：
Interstellar molecules nanoparticles

项目摘要

We are studying the composition of deep-space materials to see if we can replicate these materials in the laboratory. From observations of the way in which these materials dim the light from stars and re-radiate this energy in the infrared, we know that they are a form of carbon nanoparticle that is highly resistant to the harsh environment of space. Understanding why these particles are so able to survive under these conditions will provide new insight into the production of carbon nanoparticles having novel physical and chemical properties for applications here on earth in fields as diverse as energy storage, air polution, and the targeted delivery of pharmaceuticals. Our theoretical and laboratory simulation of the properties of these interstellar carbon nanoparticles involves the development of new experimental techniques that enable us to explore the realm of very small particles. For example, we have found an efficient method of making long chains of carbon atoms that can carry current and that act as molecular wires. Carbon nanoparticles are a ubiquitous component of our galaxy and are present throughout the universe. By identifying these particles we will have important new information on the chemical evolution of our galaxy and on the way in which chemical processes in interstellar clouds can influence star formation.

我们正在研究深空物质的组成，看看能否在实验室里复制这些物质。通过观察这些物质如何使恒星发出的光线变暗，并以红外线的形式重新辐射出这种能量，我们知道它们是一种碳纳米粒子，对恶劣的太空环境具有很强的抵抗力。了解为什么这些颗粒能够在这些条件下生存，将为碳纳米颗粒的生产提供新的见解，这些纳米颗粒具有新的物理和化学性质，可用于地球上的各种领域，如能源储存、空气污染和药物的靶向递送。我们对这些星际碳纳米颗粒特性的理论和实验室模拟涉及到新的实验技术的发展，使我们能够探索非常小的颗粒领域。例如，我们已经发现了一种制造长链碳原子的有效方法，这种碳原子链可以携带电流，并充当分子线。碳纳米颗粒是我们银河系中无处不在的组成部分，存在于整个宇宙中。通过识别这些粒子，我们将获得银河系化学演化的重要新信息，以及星际云中的化学过程如何影响恒星形成。