NSF East Asia and Pacific Summer Institute (EAPSI) for FY 2013 in Japan

2013 财年 NSF 东亚及太平洋夏季学院 (EAPSI) 在日本举行

• 批准号: 1310720
• 负责人: Lauren Zarzar
• 金额: $ 0.51万
• 依托单位: Zarzar Lauren D
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-06-01 至 2014-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1310720&HistoricalAwards=false
• 关键词: NSF; East; Asia; Pacific; Summer

This action funds Lauren Dell Zarzar of Harvard University to conduct a research project in the Math and Physical Sciences area during the summer of 2013 at the University of Tokyo in Bunkyo-ku, Tokyo, Japan. The project title is Self-Assembly of Mechanically-Responsive Liquid Crystals within Deformable Substrates." The host scientist is Professor Takashi Kato.For many materials where there exists a strong structure-function relationship, the process of directed self-assembly shows great promise as a general approach by which to influence materials properties via the control of nanoscale order. Self-assembly of liquid crystals, as well as other materials, is a sensitive dynamic process and the resulting assembled structure is affected by tunable external and internal parameters, one of which is the new surface interactions resulting from geometric confinement. Specifically, this project focuses on the assembly of luminescent liquid crystals within flexible nano/microscale 3D-patterned surfaces. The color of luminescence of this particular class of liquid crystals is sensitive to the self-assembled structure of the molecules. This project therefore focuses on 1) how certain surface and geometric parameters affect initial assembly order/color of the liquid crystals within confinement and 2) how subsequent changes in these geometric parameters (such as by substrate deformation) may trigger reorganization of the liquid crystal molecules into a new self-assembled structure with different properties. The ability to use rationally designed confining surfaces to externally trigger a material's self-reorganization/assembly could lead to the development of a novel, transformative class of "smart" materials capable of adapting to external pressures via self-assembling mechanisms. The development of numerous "smart" materials could impact every-day life, including wearable technologies, self-camouflaging surfaces, and tamper-reporting labels. Broader impacts of an EAPSI fellowship include providing the Fellow a first-hand research experience outside the U.S.; an introduction to the science, science policy, and scientific infrastructure of the respective location; and an orientation to the society, culture and language. These activities meet the NSF goal to educate for international collaborations early in the career of its scientists, engineers, and educators, thus ensuring a globally aware U.S. scientific workforce. Furthermore, the results of this research will be disseminated through presentation, publication, and public outreach programs, including the development of a hands-on demonstration that will introduce young students to the concepts of liquid crystals and self-assembly.

这项行动为哈佛大学的劳伦·戴尔·扎扎尔（Lauren Dell Zarzar）提供资金，于2013年夏天在日本东京邦克约 - 库（Bunkyo-ku）的东京大学进行数学和物理科学领域的研究项目。 项目标题是可变形底物内机械响应的液体晶体的自组装。“主持人是高什台高教授。对于许多存在牢固的结构功能关系的材料，有方向的自我组装过程非常有望表现出巨大的希望作为一种普遍的方法，可以通过这种材料来影响材料的材料。结构受到可调的外部和内部参数，其中一种是由几何限制引起的新表面相互作用。参数会影响约束内液晶的初始装配顺序/颜色，以及2）这些几何参数的随后变化（例如底物变形）如何触发液晶分子重组成具有不同特性的新的自组装结构。 使用合理设计的限制表面来外部触发材料的自组织/组装的能力，可能会导致开发一种新颖的，变革性的“智能”材料，能够通过自组装机制适应外部压力。 众多“智能”材料的开发可能会影响每天的生活，包括可穿戴技术，自我放置表面和篡改标签。 EAPSI奖学金的更广泛的影响包括为这位美国境外的第一手研究经验提供；各自位置的科学，科学政策和科学基础设施的简介；以及社会，文化和语言的方向。 这些活动符合NSF的目标，以在其科学家，工程师和教育工作者的职业生涯的早期对国际合作进行教育，从而确保全球意识的美国科学劳动力。 此外，这项研究的结果将通过演讲，出版和公共外展计划来传播，包括开发动手演示，该演示将向年轻学生介绍液晶和自我组装的概念。