A Review on Non-Noble Metal Substrates for Surface-Enhanced Raman Scattering Detection

贵金属 材料科学 MXenes公司 纳米技术 纳米材料 拉曼散射 石墨烯 基质(水族馆) 过渡金属 金属 拉曼光谱 催化作用 化学 冶金 有机化学 地质学 物理 光学 海洋学
作者
Ying Chen,Yuling Hu,Gongke Li
出处
期刊:Chemosensors [Multidisciplinary Digital Publishing Institute]
卷期号:11 (8): 427-427 被引量:15
标识
DOI:10.3390/chemosensors11080427
摘要

Surface-enhanced Raman scattering (SERS), a powerful spectroscopic technique owing to its abundant vibrational fingerprints, has been widely employed for the assay of analytes. It is generally considered that one of the critical factors determining the SERS performance is the property of the substrate materials. Apart from noble metal substrates, non-noble metal nanostructured materials, as emerging new substrates, have been extensively studied for SERS research by virtue of their superior biocompatibility, good chemical stability, outstanding selectivity, and unique physicochemical properties such as adjustable band structure and carrier concentration. Herein, in this review, we summarized the research on the analytical application of non-noble metal SERS substrates from three aspects. Firstly, we started with an introduction to the possible enhancement mechanism of non-noble metal substrates. Then, as a guideline for substrates design, several main types of materials, including carbon nanomaterials, transition metal dichalcogenides (TMDs), metal oxides, metal-organic frameworks (MOFs), transition metal carbides and nitrides (MXenes), and conjugated polymers were discussed. Finally, we especially emphasized their analytical application, such as the detection of pollutants and biomarkers. Moreover, the challenges and attractive research prospects of non-noble metal SERS substrates in practical application were proposed. This work may arouse more awareness of the practical application of the non-noble metal material-based SERS substrates, especially for bioanalysis.
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