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首页> 外文期刊>The Analyst: The Analytical Journal of the Royal Society of Chemistry: A Monthly International Publication Dealing with All Branches of Analytical Chemistry >Recent advances of plasmonic nanoparticle-based optical analysis in homogeneous solution and at the single-nanoparticle level
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Recent advances of plasmonic nanoparticle-based optical analysis in homogeneous solution and at the single-nanoparticle level

机译:基于等离子体纳米粒子基光学分析在均匀溶液中的最新进展及单纳米粒子水平

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摘要

Plasmonic nanoparticles with special localized surface plasmon resonance (LSPR) characters have been widely applied for optical sensing of various targets. With the combination of single nanoparticle imaging techniques, dynamic information of reactions and biological processes is obtained, facilitating the deep understanding of their principle and design of outstanding nanomaterials. In this review, we summarize the recently adopted optical analysis of diverse analytes based on plasmonic nanoparticles both in homogeneous solution and at the single-nanoparticle level. A brief introduction of LSPR is first discussed. Colorimetric and fluorimetric homogeneous detection examples by using different sensing mechanisms and strategies are provided. Single plasmonic nanoparticle-based analysis is concluded in two aspects: visualization of chemical reactions and understanding of biological processes. The basic sensing mechanisms and performances of these systems are introduced. Finally, this review highlights the challenges and future trend of plasmonic nanoparticle-based optical analysis systems.
机译:具有特殊局部表面等离子体共振(LSPR)特征的等离子体纳米颗粒已被广泛应用于各种目标的光学感测。通过单一纳米粒子成像技术的组合,获得了反应和生物过程的动态信息,促进了对其优异纳米材料的原理和设计的深刻理解。在本综述中,我们总结了基于均匀溶液和单纳米粒子水平的等离子体纳米颗粒的最近采用的不同分析物的光学分析。首先讨论了LSPR的简要介绍。通过使用不同的传感机制和策略,提供比色和荧光均匀检测示例。基于单个等离子体纳米粒子的分析在两个方面结束:化学反应的可视化和对生物过程的理解。介绍了这些系统的基本感测机制和性能。最后,本综述突出了基于等离子体纳米粒子的光学分析系统的挑战和未来趋势。

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