Harnessing Interfacial Phenomena at Self-Assembled Organic Ultrathin Films

利用自组装有机超薄膜的界面现象

• 批准号: RGPIN-2014-03588
• 负责人: Badia, Antonella
• 金额: $ 4.95万
• 依托单位: Université de Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=632320
• 关键词: Harnessing; Interfacial; Phenomena; Self; Assembled

The proposed research is aimed at harnessing organized, organic, molecular film assemblies to switch on, drive, and control physicochemical processes at solid/liquid interfaces in ways that will facilitate the development of nanotechnologies. More specifically, surface-confined charge-transfer interactions and enzyme reactions will be exploited for the two-dimensional assembly of (macro-)molecules and nanoparticles, and secondly, we will examine the effect of nanoparticle surface curvature on the spontaneous organization and mixing behavior of immiscible organic adsorbates. While enzyme-catalyzed reactions and organic electron-donor-acceptor compounds are well-established concepts, their application in surface chemistry, molecular assembly or nanolithography and nanofabrication is relatively new and undeveloped. Enzyme reactions and charge-transfer interactions are potentially useful tools. These offer chemically specific control over the interfacial assembly of molecules and processing of materials and can be carried out under mild conditions that are compatible with soft organic matter. The proposed research also addresses the knowledge deficit surrounding the role that nanostructure plays on the organization and miscibility of chemical groups in self-assembled monolayer films. The expected outcomes of the proposed research are redox-responsive interactions for reversibly manipulating molecules and nanoparticles at solid/liquid interfaces via electrical stimuli, enzyme-directed lithography of organic surfaces in support of nanofabrication, as well as a physicochemical understanding of molecular phase separation and miscibility in confined geometries.

拟议的研究旨在利用有组织的有机分子薄膜组件来开启、驱动和控制固/液界面上的物理化学过程，以促进纳米技术的发展。更具体地说，我们将利用表面受限的电荷转移相互作用和酶反应来实现(大)分子和纳米颗粒的二维组装，其次，我们将考察纳米颗粒表面曲率对不相容有机吸附物的自发组织和混合行为的影响。虽然酶催化反应和有机电子供体-受体化合物是公认的概念，但它们在表面化学、分子组装或纳米光刻和纳米制造中的应用相对较新和未开发。酶反应和电荷转移相互作用是潜在有用的工具。它们提供了对分子界面组装和材料加工的特定化学控制，并且可以在与软有机物兼容的温和条件下进行。这项拟议的研究还解决了围绕纳米结构在自组装单层膜中化学基团的组织和相容性方面所起作用的知识缺陷。这项拟议研究的预期结果是通过电刺激在固/液界面可逆操纵分子和纳米颗粒的氧化还原响应相互作用，支持纳米制造的有机表面的酶导向光刻，以及对分子相分离和受限几何结构中的可混性的物理化学理解。