Micro−/nanostructures for surface-enhanced Raman spectroscopy: Recent advances and perspectives

IF 15.9 1区化学 Q1 CHEMISTRY, PHYSICAL Advances in Colloid and Interface Science Pub Date : 2024-06-13 DOI:10.1016/j.cis.2024.103235

Ruipeng Chen, Shuang Li, Shuyue Ren, Dianpeng Han, Kang Qin, Xuexia Jia, Huanying Zhou, Zhixian Gao

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Abstract

Surface-enhanced Raman spectroscopy (SERS) has great potential for the analysis of molecules adsorbed on metals with rough surfaces or substrates with micro−/nanostructures. Plasmonic coupling between metal nanoparticles and the morphology of the rough metal surface can produce “hot spots” that enhance Raman scattering by adsorbed molecules, typically at micro- to nanomolar concentrations, although high enhancement factors can also facilitate single-molecule detection. This phenomenon is widely applicable for chemical analysis and sensing in various fields. In this review, the latest research progress on SERS micro−/nanosensors is evaluated, and the sensors are classified according to their individual functions. Furthermore, the design principles and working mechanisms of reported SERS-active micro−/nanostructured substrates are analyzed, and the design features adopted to overcome the difficulties associated with precision detection are explored. Finally, challenges and directions for future development in this field are discussed. This review serves as a design guide for novel SERS-active substrates.

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用于表面增强拉曼光谱的微/纳米结构：最新进展与前景

表面增强拉曼光谱（SERS）在分析吸附在表面粗糙的金属或具有微/纳米结构的基底上的分子方面具有巨大的潜力。金属纳米粒子之间的等离子耦合和粗糙金属表面的形态可产生 "热点"，增强吸附分子的拉曼散射，通常在微摩尔至纳摩尔浓度范围内，尽管高增强因子也可促进单分子检测。这种现象可广泛应用于各个领域的化学分析和传感。本综述评估了 SERS 微型/纳米传感器的最新研究进展，并根据传感器的不同功能对其进行了分类。此外，还分析了已报道的 SERS 活性微/纳米结构基底的设计原理和工作机制，并探讨了为克服与精确检测相关的困难而采用的设计特点。最后，讨论了该领域未来发展的挑战和方向。本综述可作为新型 SERS 活性基底的设计指南。

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来源期刊

Advances in Colloid and Interface Science 化学-物理化学

CiteScore

28.50

自引率

2.60%

发文量

175

审稿时长

31 days

期刊介绍： "Advances in Colloid and Interface Science" is an international journal that focuses on experimental and theoretical developments in interfacial and colloidal phenomena. The journal covers a wide range of disciplines including biology, chemistry, physics, and technology. The journal accepts review articles on any topic within the scope of colloid and interface science. These articles should provide an in-depth analysis of the subject matter, offering a critical review of the current state of the field. The author's informed opinion on the topic should also be included. The manuscript should compare and contrast ideas found in the reviewed literature and address the limitations of these ideas. Typically, the articles published in this journal are written by recognized experts in the field.