Biological Molecules-Governed Plasmonic Nanoparticle Dimers with Tailored Optical Behaviors,The Journal of Physical Chemistry Letters

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Biological Molecules-Governed Plasmonic Nanoparticle Dimers with Tailored Optical Behaviors
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2017-11-07 00:00:00 , DOI: 10.1021/acs.jpclett.7b01781
Yuan Zhao ₁ , Maozhong Sun ₁ , Wei Ma ₁ , Hua Kuang ₁ , Chuanlai Xu ₁

Affiliation

Self-assembly opens new avenues to direct the organization of nanoparticles (NPs) into discrete structures with predefined configuration and association numbers. Plasmonic NP dimers provide a well-defined system for investigating the plasmonic coupling and electromagnetic (EM) interaction in arrays of NPs. The programmability and structural plasticity of biomolecules offers a convenient platform for constructing of NP dimers in a controllable way. Plasmonic coupling of NPs enables dimers to exhibit tunable optical properties, such as surface-enhanced Raman scattering (SERS), chirality, photoluminescence, and electrochemiluminescence (ECL) properties, which can be tailored by altering the biomolecules, the building blocks with distinct compositions, sizes and morphology, the interparticle distances, as well as the geometric configuration of the constituent NPs. An overview of recent developments in biological molecules-governed NP dimers, the tailored optical behaviors, and challenges in enhancing optical signals and proposing plasmonic biosensors are discussed in this Perspective.

中文翻译：

具有量身定制的光学行为的生物分子控制的等离子体纳米二聚体

自组装开辟了新途径，可以将纳米颗粒（NP）的组织引导到具有预定义配置和关联编号的离散结构中。等离子体NP二聚体为研究NP阵列中的等离子体耦合和电磁（EM）相互作用提供了一个定义明确的系统。生物分子的可编程性和结构可塑性为以可控方式构建NP二聚体提供了便利的平台。NP的等离子耦合使二聚体具有可调的光学特性，例如表面增强拉曼散射（SERS），手性，光致发光和电化学致发光（ECL）特性，这些特性可以通过改变生物分子，具有不同组成的结构单元来进行定制，尺寸和形态，粒子间距离，以及组成NP的几何构型。在此《观点》中，概述了生物分子控制的NP二聚体的最新发展，定制的光学行为以及增强光信号和提出等离激元生物传感器的挑战。

更新日期：2017-11-08

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