Fractal Nanoarchitectures

分形纳米结构

• 批准号: 0401780
• 负责人: George Newkome
• 金额: $ 37万
• 依托单位: University of Akron
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-06-01 至 2007-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0401780&HistoricalAwards=false
• 关键词: Fractal; Nanoarchitectures

The fields of macromolecular, dendrimer, polymer, supramolecular chemistry, andnanotechnology, are expanding rapidly as they intersect and integrate. The research proposedherein, describes new material construction and analysis. Benefits to the public will arise throughthe reporting of basic scientific results, applied technology, student training, and outreachprograms in this cutting edge field.Intellectual Merit: The proposed activity explores novel and innovative routes to newapplication-oriented materials predicated on logical extensions of foundations in prior results ofthe principal investigator. Terpyridine-based dendritic networks, fractal nanoarchitectural selfassembly,and shape-persistent nanoscale constructs introduce new avenues and concepts formacromolecular construction and utility. Fractal nanomolecular design and syntheses furtherintegrates the spatial arts and mathematics by incorporating self-similar motifs at differentmolecular scales. Melding of supramolecular macromolecular chemistry with that of classicalorganic and inorganic regimes will lead to new thought processes," available methodologies, andbuilding blocks for material and device engineering.Specifically, we herein propose to expand our investigations of branched architectures viadendritic construction based on (1) "dendrimer-to-dendron" connectivity, since we havedeveloped terpyridine-metal-terpyridine assembly of preconstructed dendrimers and dendriticcomponents resulting in novel network-based architectures. Additionally, we intend to (2) extendour studies on fractal architectures for the construction of nanoscopic, precisely positioned,multiple metal arrays; and (3) investigate the potential and effects of incorporation of shapepersistent,terpyridine-based ligands in the construction of polymetallic, hyperbranchedarchitectures.Broader Aspects: Advancement of discovery and understanding of the proposed workwill promote the integration of student training and enrichment, at all education levels, includingK-12, undergraduate, graduate, post-doctoral and visiting scientists (national and international),by providing appropriately staged conceptual and technical scientific challenges. This willfacilitate student competence while instilling and nurturing specific elements of critical thinking,requisite for all disciplines. Participation of underrepresented groups and minorities is encouragedthrough direct support (from additional funding sources) and community outreach projects(primarily through the College of Polymer Science and Polymer Engineering) and include innercityschool presentations and K-12 teacher involvement that broadly promote scientific andtechnical understanding. Additionally, scientific information about polymeric materials, anddendrimers in particular, is promulgated through the principal investigator's website(www.dendrimers.com ) which currently averages 6,000 - 7,000 visits per month.The Akron-Cleveland metroplex has approximately 3 million residents (a 500 mileradius encompasses 42 % of the US population and 40 % of the Canadian population). Thisprovides a broadly diverse workforce (with unique polymer-related opportunities for regionalinteractions) with close to 2000 polymer companies within 100 miles. The proposed activitieswill enhance the N.E. Ohio workforce through research, training, presentations, and education,thus augmenting the mission of the University of Akron and the U.S. scientific agenda in thecommunity and region.Commercialization of discoveries and technologies arising from the proposed work willbe facilitated by the University of Akron Research Foundation and Office of TechnologyTransfer, in association with the Akron Commercialization Center and the newly-formedMaterials Experiment Station, (all under the auspices of the University of Akron) that iscommitted to aggressive marketing of University research.

大分子、树状大分子、聚合物、超分子化学和纳米技术等领域的交叉和融合正在迅速发展。本文提出了新材料的构造和分析。通过报告这一前沿领域的基础科学成果、应用技术、学生培训和推广项目，公众将受益。智力价值：提议的活动探索新的和创新的路线，以新的面向应用的材料为基础的逻辑扩展在先前的主要研究者的结果。基于三联吡啶的树突网络、分形纳米结构自组装和形状持久的纳米尺度结构为大分子结构和应用引入了新的途径和概念。分形纳米分子设计与合成通过在不同分子尺度上结合自相似的图案，进一步将空间艺术与数学相结合。超分子大分子化学与经典有机和无机体系的融合将带来新的思维过程、可用的方法以及材料和设备工程的构建模块。具体来说，我们在此建议扩展我们对分支结构的研究，即基于(1)“树突到树突”连接的枝状结构，因为我们已经开发了预先构建的枝状大分子和枝状组分的三联吡啶-金属-三联吡啶组装，从而产生了新的基于网络的结构。此外，我们打算(2)扩展分形结构的研究，用于构建纳米级、精确定位的多金属阵列；(3)研究形状持久性、三吡啶基配体在构建多金属、超支化结构中的潜力和影响。更广泛的方面：通过提供适当阶段的概念和技术科学挑战，促进对拟议工作的发现和理解，将促进学生培训和丰富的整合，在所有教育水平，包括k -12，本科，研究生，博士后和访问科学家（国内和国际）。这将促进学生的能力，同时灌输和培养批判性思维的具体要素，这是所有学科所必需的。通过直接支持（来自额外的资金来源）和社区外展项目（主要通过聚合物科学和聚合物工程学院）鼓励未被充分代表的群体和少数民族的参与，并包括市内学校的演讲和K-12教师的参与，以广泛促进科学和技术的理解。此外，关于高分子材料的科学信息，特别是树突分子，通过主要研究者的网站（www.dendrimers.com）发布，该网站目前平均每月访问6000 - 7000次。阿克伦-克利夫兰大都会区大约有300万居民（500英里的半径包括42%的美国人口和40%的加拿大人口）。这为100英里内的近2000家聚合物公司提供了广泛多样的劳动力（具有独特的聚合物相关区域互动机会）。拟议的活动将通过研究、培训、演讲和教育来增强俄亥俄州东北部的劳动力，从而增强阿克伦大学的使命和美国在社区和地区的科学议程。拟议工作产生的发现和技术的商业化将由阿克伦大学研究基金会和技术转移办公室与阿克伦商业化中心和新成立的材料实验站（都在阿克伦大学的主持下）共同促进，该中心致力于大学研究的积极营销。