Adhesive surface-enhanced Raman scattering Cu–Au nanoassembly for the sensitive analysis of particulate matter

IF 6.9 Q1 Environmental Science

Journal of environmental sciences Pub Date : 2023-06-01 DOI:10.1016/j.jes.2022.07.027

Ning Wang , Zhiqiang Gan , Fengkui Duan , Hui Chen , Chensheng Ma , Jie Ji , Zhenli Sun

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引用次数: 3

Abstract

Surface-enhanced Raman scattering (SERS) has been used in atmospheric aerosol detection as it enables the high-resolution analysis of particulate matter. However, its use in the detection of historical samples without damaging the sampling membrane while achieving effective transfer and the high-sensitivity analysis of particulate matter from sample films remains challenging. In this study, a new type of SERS tape was developed, consisting of Au nanoparticles (NPs) on an adhesive double-sided Cu film (DCu). The enhanced electromagnetic field generated by the coupled resonance of the local surface plasmon resonances of AuNPs and DCu led to an enhanced SERS signal with an experimental enhancement factor of 10⁷. The AuNPs were semi-embedded and distributed on the substrate, and the viscous DCu layer was exposed, enabling particle transfer. The substrates exhibited good uniformity and favorable reproducibility with relative standard deviations of 13.53% and 9.74% respectively, and the substrates could be stored for 180 days with no signs of signal weakening. The application of the substrates was demonstrated by the extraction and detection of malachite green and ammonium salt particulate matter. The results demonstrated that SERS substrates based on AuNPs and DCu are highly promising in real–world environmental particle monitoring and detection.

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粘附表面增强拉曼散射Cu-Au纳米组件用于颗粒物质的敏感分析

表面增强拉曼散射（SERS）已被用于大气气溶胶检测，因为它能够对颗粒物进行高分辨率分析。然而，它在不损坏取样膜的情况下检测历史样品，同时实现样品膜中颗粒物的有效转移和高灵敏度分析仍然具有挑战性。在本研究中，开发了一种新型的SERS胶带，该胶带由Au纳米颗粒（NPs）在粘性双面Cu膜（DCu）上组成。由AuNP和DCu的局部表面等离子体共振的耦合共振产生的增强电磁场导致实验增强因子为107的增强SERS信号。AuNPs被半嵌入并分布在衬底上，并且粘性DCu层被暴露，从而实现颗粒转移。基质表现出良好的均匀性和良好的再现性，相对标准偏差分别为13.53%和9.74%，基质可以储存180天，没有信号减弱的迹象。基质的应用通过孔雀石绿和铵盐颗粒物的提取和检测得到了证明。结果表明，基于AuNPs和DCu的SERS基底在现实世界的环境颗粒监测和检测中非常有前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of environmental sciences Environmental Science (General)

CiteScore

12.80

自引率

0.00%

发文量

审稿时长

17 days

期刊介绍： Journal of Environmental Sciences is an international peer-reviewed journal established in 1989. It is sponsored by the Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, and it is jointly published by Elsevier and Science Press. It aims to foster interdisciplinary communication and promote understanding of significant environmental issues. The journal seeks to publish significant and novel research on the fate and behaviour of emerging contaminants, human impact on the environment, human exposure to environmental contaminants and their health effects, and environmental remediation and management. Original research articles, critical reviews, highlights, and perspectives of high quality are published both in print and online.