Development and application of multiscale simulation methods for complex chemical and material systems

复杂化学和材料系统多尺度模拟方法的开发和应用

• 批准号: 355861-2008
• 负责人: Mosey, Nicholas
• 金额: $ 3.56万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=431799
• 关键词: Development; application; multiscale; simulation; methods

Recent years have witnessed an explosion of research and development efforts aimed at harnessing the unique properties of nanoscopic systems. This has led to a nanotechnology industry that is expected to grow to multi-trillion dollar levels (worldwide) over the next few years. The development of functional nanomaterials - nanoscopic structures that can be fine-tuned at the atomic-level to exhibit well-defined electrical, chemical, or physical responses to external stimuli - is a key driver of research in this industry because the ability to exert detailed control over the behaviour of these materials has the potential to lead to breakthroughs in areas ranging from catalysis and medicine to lubrication and energy production. For example, the development of nanoscopic coatings that respond to applied loads by becoming harder will dramatically improve our ability to protect surfaces from wear, while designing molecular cages that undergo chemical decomposition at specific surface sites will lead to improved means of selectively delivering drugs to cells. Chemical modeling provides an attractive means of gaining atomic-level insights that can be used to accelerate the development of functional nanomaterials. However, despite the proven capabilities of computational chemistry in many areas of research, the application of simulation methods to complex systems such as functional nanomaterials remains a significant challenge. The overall goal of this research program is to establish chemical simulation as a practical tool for guiding the rational development of functional nanomaterials. This will be achieved by developing cutting-edge simulation methods that are capable of accurately describing the properties and behaviour of complex chemical systems, and using these methods to shed light on fundamental details pertaining to the formation, properties, and behaviour of functional nanomaterials. This work will facilitate breakthroughs in the large number of fields that are impacted by nanotechnology, contribute to recent efforts to develop strong nanoscience research and development capabilities within Canada, and provide students with opportunities to gain the skills necessary to develop, implement, and apply simulation methods.

近年来，为了利用纳米系统的独特特性，研究和开发工作呈爆炸式增长。这导致了纳米技术产业在未来几年有望增长到数万亿美元的水平（全球）。功能纳米材料的发展——纳米结构可以在原子水平上进行微调，以表现出对外部刺激的明确的电、化学或物理反应——是该行业研究的关键驱动力，因为对这些材料的行为进行详细控制的能力有可能在催化、医药、润滑和能源生产等领域带来突破。例如，纳米涂层的开发可以通过变得更硬来响应施加的载荷，这将极大地提高我们保护表面免受磨损的能力，而设计在特定表面位置进行化学分解的分子笼将导致选择性地将药物输送到细胞中的方法的改进。化学建模提供了一种有吸引力的方法来获得原子水平的见解，可以用来加速功能纳米材料的开发。然而，尽管计算化学在许多研究领域的能力得到了证明，但将模拟方法应用于复杂系统（如功能纳米材料）仍然是一个重大挑战。本研究计划的总体目标是建立化学模拟作为指导功能纳米材料合理开发的实用工具。这将通过开发尖端的模拟方法来实现，这些方法能够准确地描述复杂化学系统的性质和行为，并使用这些方法来阐明与功能纳米材料的形成、性质和行为有关的基本细节。这项工作将促进受纳米技术影响的大量领域的突破，有助于近期在加拿大发展强大的纳米科学研究和开发能力，并为学生提供机会获得开发、实施和应用模拟方法所需的技能。