International Collaboration in Chemistry: Synthesis and Assembly of Shape-Adjustable, Reconfigurable Nanocrystals

化学国际合作：形状可调、可重构纳米晶体的合成和组装

• 批准号: 1303757
• 负责人: Qian Chen
• 金额: $ 43万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-08-01 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1303757&HistoricalAwards=false
• 关键词: International; Collaboration; Chemistry; Synthesis; Assembly

This International Collaboration in Chemistry between US Investigators and their Counterparts Abroad (ICC) project focuses on developing shape-adjustable nanocrystals for use in assembling reconfigurable superstructures. The synthesis of nanocrystals of diarylethene and azobenzene derivatives and their assembly into photo-responsive nanocrystals is developed in this project. One of the goals is to generate ordered structures and to enable their photo-triggered transitions using laser irradiation at specific locations and at specific times. Other goals are to develop chemo-responsive nanocrystal assemblies as well as the anisotropic reconfiguration of Janus nanocrystals. The Granick group at the University of Illinois at Urbana-Champaign is supported by the Macromolecular, Supramolecular and Nanochemistry Program of the NSF Chemistry Division. The Kimizuka group at Kyushu University is supported by the Japan Society for the Promotion of Science (JSPS), the partnering international funding agency.Molecular crystal materials show great technological promise with the significant drawback that the crystal structure typically is static in time. This research collaboration between US and Japanese researchers is to enhance our fundamental understanding about how to design and produce new structures with the value-added element that they are reconfigurable. This in turn could lead to more effective sensors, actuators, and release agents. The extended visits of students to the Japanese partner laboratory for collaborative work and training provide students with valuable international experience.

美国研究人员与国外同行 (ICC) 之间的化学国际合作项目重点开发用于组装可重构上部结构的形状可调纳米晶体。 该项目开发了二芳基乙烯和偶氮苯衍生物纳米晶体的合成及其组装成光响应纳米晶体。 目标之一是生成有序结构，并在特定位置和特定时间使用激光照射实现其光触发转变。 其他目标是开发化学响应纳米晶体组件以及 Janus 纳米晶体的各向异性重构。 伊利诺伊大学厄巴纳-香槟分校的格拉尼克小组得到了美国国家科学基金会化学部大分子、超分子和纳米化学项目的支持。九州大学君冢小组得到了合作国际资助机构日本学术振兴会 (JSPS) 的支持。分子晶体材料显示出巨大的技术前景，但其明显缺点是晶体结构通常是静态的。 美国和日本研究人员之间的这项研究合作旨在增强我们对如何设计和生产具有可重构增值元素的新结构的基本理解。 这反过来又可以带来更有效的传感器、执行器和脱模剂。 学生对日本合作伙伴实验室的长期访问进行协作工作和培训为学生提供了宝贵的国际经验。