Helical Nanotubes from the Directed Assembly of Porous Macrocycles

多孔大环定向组装的螺旋纳米管

• 批准号: 0701540
• 负责人: Bing Gong
• 金额: $ 43.5万
• 依托单位: SUNY at Buffalo
• 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: 2007-06-15 至 2011-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0701540&HistoricalAwards=false
• 关键词: Helical; Nanotubes; Directed; Assembly; Porous

With this award, the Organic and Macromolecular Chemistry Program supports the work of Professor Bing Gong of SUNY Buffalo and Professor Xiao Cheng Zeng of the University of Nebraska, Lincoln. This research will involve the construction of self-assembling nanotubes from macrocycles (large ring molecules) with nano-sized cross sectional cavities of ~1-3 nm in diameter. A recently discovered 1-step synthesis of rigid large macrocycles will be the basis for preparing these large macrocycles. They will contain groups which will allow them to self-assemble, using hydrogen bonding and aromatic ring stacking, into nanotubes. These new design strategies will allow these nanotubes to be chiral and further, the tube dimensions can be varied along with the tube functionality. Parallel computational studies on the proposed system will be carried out which will guide as well as confirm the experimental effort. Nanofluidic properties of the proposed chiral nanotubular structures will be obtained and this will provide guidance for future experimental studies.The broader impacts of this research involve the interdisciplinary combining of the design, synthesis, characterization and computational aspects of the project in the training of students. The project will involve undergraduate students from groups traditionally underrepresented in the sciences and students who have limited exposure and access to the latest developments in nanosciences. Finally, the availability of these macrocycles, along with their easy modification, will lead to numerous self-assembling helical nanotubes with variable size and stability, which will result in the construction of previously unavailable materials that may find applications in a variety of fields.

有机与高分子化学项目通过该奖项支持纽约州立大学布法罗分校的龚兵教授和内布拉斯加大学林肯分校的曾晓成教授的工作。 这项研究将涉及从大环（大环分子）构建自组装纳米管，其纳米级横截面空腔直径约为 1-3 nm。 最近发现的刚性大环化合物的一步合成将成为制备这些大环化合物的基础。 它们将含有允许它们利用氢键和芳环堆叠自组装成纳米管的基团。 这些新的设计策略将使这些纳米管具有手性，而且管的尺寸可以随着管的功能而变化。 将对所提出的系统进行并行计算研究，这将指导并确认实验工作。 将获得所提出的手性纳米管结构的纳米流体特性，这将为未来的实验研究提供指导。这项研究的更广泛影响涉及项目在学生培训中的设计、合成、表征和计算方面的跨学科结合。 该项目将涉及传统上在科学领域代表性不足的群体的本科生以及接触和接触纳米科学最新发展有限的学生。 最后，这些大环化合物的可用性及其易于修饰，将导致大量具有可变尺寸和稳定性的自组装螺旋纳米管，这将导致构建以前无法获得的材料，这些材料可能会在各个领域得到应用。