Nanomaterials for surface-enhanced Raman spectroscopy-based metal detection: a review

IF 15 2区环境科学与生态学 Q1 CHEMISTRY, MULTIDISCIPLINARY Environmental Chemistry Letters Pub Date : 2024-06-17 DOI:10.1007/s10311-024-01758-8

Dongchang Yang, Brian Youden, Andrew Carrier, Naizhen Yu, Ken Oakes, Mark Servos, Xu Zhang

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Abstract

Toxic metals and metalloids pollution is a major ecological and human health issue, yet classical detection methods are limited. Here we review surface-enhanced Raman spectroscopy-based sensors using nanomaterial-based substrates for metal detection, with emphasis on substrate composition, functionalization, and assembly; metal sensing strategies; and analytical performance. Substrates include nobel metals, semiconductors, and composites. Substrate assembly can be done in solution or on solid supports. Sensing strategies comprise direct sensing, reporter recognition, reporter migration, substrate aggregation, and substrate modification. In general, the physicochemical properties of the substrates determine sensor sensitivity through electromagnetic and chemical enhancements of Raman scattering, whereas substrate surface functionalization, or lack thereof, determines sensor selectivity and the sensing mechanism. The main elements analyzed are mercury, lead, copper, arsenic, and chromium.

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基于表面增强拉曼光谱的金属检测纳米材料综述

有毒金属和类金属污染是一个重大的生态和人类健康问题，但传统的检测方法却很有限。在此，我们回顾了使用纳米材料基底的表面增强拉曼光谱传感器进行金属检测的情况，重点介绍了基底的组成、功能化和组装；金属传感策略；以及分析性能。基底包括贵金属、半导体和复合材料。基底组装可在溶液中或固体支撑物上进行。传感策略包括直接传感、报告物识别、报告物迁移、基底聚集和基底修饰。一般来说，基底的物理化学特性通过电磁和化学增强拉曼散射来决定传感器的灵敏度，而基底表面功能化与否则决定传感器的选择性和传感机制。分析的主要元素是汞、铅、铜、砷和铬。

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来源期刊

Environmental Chemistry Letters 环境科学-工程：环境

CiteScore

32.00

自引率

7.00%

发文量

175

审稿时长

2 months

期刊介绍： Environmental Chemistry Letters explores the intersections of geology, chemistry, physics, and biology. Published articles are of paramount importance to the examination of both natural and engineered environments. The journal features original and review articles of exceptional significance, encompassing topics such as the characterization of natural and impacted environments, the behavior, prevention, treatment, and control of mineral, organic, and radioactive pollutants. It also delves into interfacial studies involving diverse media like soil, sediment, water, air, organisms, and food. Additionally, the journal covers green chemistry, environmentally friendly synthetic pathways, alternative fuels, ecotoxicology, risk assessment, environmental processes and modeling, environmental technologies, remediation and control, and environmental analytical chemistry using biomolecular tools and tracers.