DMREF: Collaborative Research: Interface-promoted Assembly and Disassembly Processes for Rapid Manufacture and Transport of Complex Hybrid Nanomaterials

DMREF：合作研究：用于快速制造和运输复杂混合纳米材料的界面促进的组装和拆卸过程

• 批准号: 1629078
• 负责人: William Johnson
• 金额: $ 32万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-10-01 至 2020-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1629078&HistoricalAwards=false
• 关键词: DMREF; Collaborative; Research; Interface; promoted

NON-TECHNICAL DESCRIPTION: The intimate combination of inorganic nanoparticles and organic polymers within nanoscopic packages of controlled sizes and shapes includes many challenges with the processes for their production and many opportunities for unique materials properties. Organic polymers are typically considered as plastics and they have physical and mechanical properties that allow them to serve common roles, such as elastic materials (clothing, tents, parachutes, etc.), containment vessels (cups, plastic bags, etc.), and high technology needs, such as optical materials (eye glasses, OLED devices, etc.), engineering materials (airplane parts, football helmets, etc.), among many others. Inorganic nanoparticles are typically rigid and often possess characteristics of magnetism, optical signaling or catalytic reactivity. This project will develop computational methods to guide approaches to rapidly discover and manufacture hybrid inorganic-organic nanostructured objects (HIONs) possessing complexity of compositions, structures, properties and functions. TECHNICAL DESCRIPTION: The primary hypothesis driving our project is that the contrasting interactions of polymers vs nanoparticles vs HIONs with each other and with surfaces and flow fields in porous media and other designed interfaces can be harnessed to develop methods for scalable production. The assembly of organic polymers or inorganic particles or their co-assembly is usually conducted in either the solution state or in the bulk. Although simulations have guided polymer and particle assembly processes, this research activity adds the complexity of assembly/disassembly in a flow field and in an adaptive resolution solvent(s) model, and will elucidate how interfaces impact assembly/disassembly. Experimentally, HION assembly/disassembly at solution-solid substrate interfaces in a flow system or at solvent-solvent interfaces represent new frontiers. Only recently has incorporation of discrete nanoscale heterogeneity on surfaces been demonstrated to allow quantitative mechanistic prediction of particle retention on unfavorable surfaces, as well as mechanistic prediction of release in response to perturbations in solution ionic strength and fluid velocity. Ultimately, the primary goal is to be able to conduct high throughput, tunable manufacturing of complex HIONs that exhibit compositions, structures, morphologies and properties for diverse technological applications.

非技术描述：无机纳米颗粒和有机聚合物在受控尺寸和形状的纳米级封装内的紧密组合包括其生产工艺的许多挑战和独特材料特性的许多机会。 有机聚合物通常被认为是塑料，并且它们具有允许它们充当常见角色的物理和机械性质，例如弹性材料（衣服、帐篷、降落伞等），密封容器（杯子、塑料袋等），以及高技术需求，如光学材料（眼镜、OLED器件等），工程材料（飞机零件、橄榄球头盔等），还有很多人 无机纳米粒子通常是刚性的，并且通常具有磁性、光信号或催化反应性的特性。 该项目将开发计算方法，以指导快速发现和制造具有复杂组成，结构，性质和功能的混合无机-有机纳米结构物体（HION）的方法。 技术说明：驱动我们项目的主要假设是，聚合物与纳米颗粒与HION之间以及与多孔介质和其他设计界面中的表面和流场之间的对比相互作用可以用来开发可扩展生产的方法。 有机聚合物或无机颗粒的组装或它们的共组装通常在溶液状态或本体中进行。 虽然模拟指导聚合物和颗粒组装过程，这项研究活动增加了组装/拆卸的复杂性，在流场和自适应分辨率溶剂（S）模型，并将阐明接口如何影响组装/拆卸。在实验上，HION组装/拆卸在流动系统中的溶液-固体基质界面或在溶剂-溶剂界面代表新的前沿。 仅在最近才证实了在表面上掺入离散的纳米级异质性，以允许在不利表面上的颗粒保留的定量机械预测，以及响应于溶液离子强度和流体速度的扰动的释放的机械预测。 最终，主要目标是能够进行复杂HION的高通量、可调制造，这些HION表现出用于各种技术应用的组成、结构、形态和性质。