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首页> 外文期刊>Annual Review of Analytical Chemistry >Single-Molecule Investigations of Morphology and Mass Transport Dynamics in Nanostructured Materials
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Single-Molecule Investigations of Morphology and Mass Transport Dynamics in Nanostructured Materials

机译：纳米结构材料的形态和传质动力学的单分子研究

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摘要

Nanostructured materials such as mesoporous metal oxides and phase-separated block copolymers form the basis for new monolith, membrane, and thin film technologies having applications in energy storage, chemical catalysis, and separations. Mass transport plays an integral role in governing the application-specific performance characteristics of many such materials. The majority of methods employed in their characterization provide only ensemble data, often masking the nanoscale, molecular-level details of materials morphology and mass transport. Single-molecule fluorescence methods offer direct routes to probing these characteristics on a single-molecule/single-nanostructure basis. This article provides a review of single-molecule studies focused on measurements of anisotropic diffusion, adsorption, partitioning, and confinement in nanostructured materials. Experimental methods covered include confocal and wide-field fluorescence microscopy. The results obtained promise to deepen our understanding of mass transport mechanisms in nanostructures, thus aiding in the realization of advanced materials systems.
机译：诸如介孔金属氧化物和相分离的嵌段共聚物之类的纳米结构材料构成了新的整体，膜和薄膜技术的基础，这些新技术已在能量存储，化学催化和分离方面得到应用。大众运输在控制许多此类材料的特定应用性能方面起着不可或缺的作用。用于表征的大多数方法仅提供整体数据，通常掩盖了材料形态和质量传输的纳米级，分子级细节。单分子荧光方法为在单分子/单纳米结构的基础上探索这些特性提供了直接途径。本文提供了有关单分子研究的综述，重点是纳米结构材料中各向异性扩散，吸附，分配和限制的测量。涵盖的实验方法包括共聚焦和宽视野荧光显微镜。获得的结果有望加深我们对纳米结构中传质机理的理解，从而有助于实现先进的材料系统。

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