School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Dr., Singapore, 637457.
Macromol Rapid Commun. 2019 Jan;40(1):e1800613. doi: 10.1002/marc.201800613. Epub 2018 Nov 19.
Self-assembly of plasmonic nanocrystals (PNCs) and polymers provides access to a variety of functionalized metallic-polymer building blocks and higher-order hybrid plasmonic assemblies, and thus is of considerable fundamental and practical interest. The hybrid assemblies often not only inherit individual characteristics of polymers and PNCs but also exhibit distinct photophysical and catalytic properties compared to that of a single PNC building block. The tailorable plasmonic coupling between PNCs within assemblies enables the precise control over localized surface plasmon resonance, which subsequently affords a series of light-driven or photo-activated applications, such as surface-enhanced Raman scattering detection, photoacoustic imaging, photothermal therapy, and photodynamic therapy. In this review, the synthetic strategies of a library of PNC-polymer hybrid building blocks and corresponding assemblies are summarized along with the mechanisms of polymer-assisted self-assembly of PNCs and the concepts for bridging the intrinsic properties of PNC-polymer assemblies to widespread practical applications.
等离子体纳米晶体 (PNC) 和聚合物的自组装为各种功能化的金属-聚合物构建块和更高阶的混合等离子体组装体提供了途径，因此具有相当大的基础和实际意义。与单个 PNC 构建块相比，这些混合组装体不仅继承了聚合物和 PNC 的各自特性，而且还表现出独特的光物理和催化性质。组装体中 PNC 之间的可调谐等离子体耦合能够精确控制局域表面等离激元共振，从而提供了一系列光驱动或光激活应用，例如表面增强拉曼散射检测、光声成像、光热疗和光动力疗法。在这篇综述中，总结了一系列 PNC-聚合物混合构建块及其相应组装体的合成策略，以及聚合物辅助 PNC 自组装的机制，以及将 PNC-聚合物组装体的固有性质与广泛的实际应用联系起来的概念。
