Optimization of shell-isolated nanoparticle-enhanced Raman spectroscopy experiments with silver core-silica shell nanoparticles

IF 2.7 3区化学 Q2 CHEMISTRY, ANALYTICAL

Vibrational Spectroscopy Pub Date : 2024-02-21 DOI:10.1016/j.vibspec.2024.103666

Tatjana Charkova , Ilja Ignatjev

引用次数: 0

Abstract

The synthesized silver nanoparticles (60–70 nm) coated with a thin (5–6 nm) shell of silicon dioxide were applied for the analysis of popular 4-mercaptobenzoic acid (4-MBA) self-assembled monolayer by the shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS). The detailed synthesis, purification of the nanoparticles, and optimizing washing procedure are provided. The obtained results are proved by HR-TEM, UV-Vis, and SHINERS data. The report opens up a broad possibility of using core-shell nanoparticles in SHINERS experiments, avoiding lengthy purification procedures while maintaining particle stability and Raman signal intensity.

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优化银核-二氧化硅壳纳米粒子的壳隔离纳米粒子增强拉曼光谱实验

利用壳隔离纳米粒子增强拉曼光谱（SHINERS）技术，将合成的银纳米粒子（60-70 nm）包覆在二氧化硅薄壳（5-6 nm）上，用于分析流行的 4-巯基苯甲酸（4-MBA）自组装单层。研究人员详细介绍了纳米粒子的合成、纯化和优化洗涤程序。所获得的结果得到了 HR-TEM、UV-Vis 和 SHINERS 数据的证实。该报告为在 SHINERS 实验中使用核壳纳米粒子提供了广泛的可能性，在保持粒子稳定性和拉曼信号强度的同时，避免了冗长的纯化过程。

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

Vibrational Spectroscopy 化学-分析化学

CiteScore

4.70

自引率

4.00%

发文量

103

审稿时长

52 days

期刊介绍： Vibrational Spectroscopy provides a vehicle for the publication of original research that focuses on vibrational spectroscopy. This covers infrared, near-infrared and Raman spectroscopies and publishes papers dealing with developments in applications, theory, techniques and instrumentation. The topics covered by the journal include: Sampling techniques, Vibrational spectroscopy coupled with separation techniques, Instrumentation (Fourier transform, conventional and laser based), Data manipulation, Spectra-structure correlation and group frequencies. The application areas covered include: Analytical chemistry, Bio-organic and bio-inorganic chemistry, Organic chemistry, Inorganic chemistry, Catalysis, Environmental science, Industrial chemistry, Materials science, Physical chemistry, Polymer science, Process control, Specialized problem solving.