利用电化学生长法制造耐腐蚀 PPy/GO 复合薄膜的半导体 SERS 传感器,用于检测鲜鱼组织中的水晶紫残留物。

IF 5.6 1区 化学 Q1 CHEMISTRY, ANALYTICAL
Talanta Pub Date : 2025-01-01 Epub Date: 2024-09-18 DOI:10.1016/j.talanta.2024.126906
Xishun Peng, Qixin Chen, Xinghua Li, Li Yang, Yiheng Yuan, Cheng Zuo, Zhangyu Zhou, Zhongchen Bai
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引用次数: 0

摘要

海洋食品中的结晶紫(CV)残留物严重威胁着人类的健康。在这项研究中,我们提出了一种采用电化学生长法的抗腐蚀聚苯胺/氧化石墨烯(PPy/GO)薄膜半导体表面增强拉曼散射(SERS)传感器,用于检测鲜鱼组织中的结晶紫残留。通过电化学聚合工艺将聚苯乙烯/氧化石墨烯分散液一步沉积在不锈钢板表面,形成聚苯乙烯/氧化石墨烯复合膜,作为半导体 SERS 基底。由于 PPy/GO 薄膜基底主要由 GO 片组成,没有其他金属,因此具有良好的耐腐蚀性。PPy/Go SERS 基底对 CV 分子的 SERS 增强因子和电荷转移强度 PCT 分别高达 1.18 × 106 和 0.903。此外,PPy/Go SERS 衬底的检测限(LOD)可达 1.58 nM。此外,PPy/GO 薄膜 SERS 传感器还能识别鲜鱼组织中的 CV 残留,其回收率为 91.8 %-107 %。我们提出的 PPy/GO SERS 底物的制备方法和检测方法为检测海洋食品中的氯乙烯残留提供了一条新途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A semiconductor SERS sensor of corrosion-resistant PPy/GO composite film by electrochemical growth for detecting crystal violet residues in fresh fish tissue.

Crystal violet (CV) residues in Marine food have produced a severe health threat in human life. In this study, we proposed a semiconductor surface-enhanced Raman scattering (SERS) sensor of corrosion-resistant Polyaniline/Graphene oxide (PPy/GO) film by electrochemical growth method to detect CV residues in fresh fish tissue. A PPy/GO dispersion solution was one-step deposited on a stainless steel sheet surface by electrochemical polymerization process to form a PPy/GO composite film acting as a semiconductor SERS substrate. Since the substrate of PPy/GO film was mainly composed of GO sheet without other metals, it had a good corrosion resistance. The SERS enhancement factor and charge transfer intensity PCT of PPy/Go SERS substrate for CV molecules were up to 1.18 × 106 and 0.903, respectively. Furthermore, the limit of detection (LOD) of PPy/GO SERS substrate could reach 1.58 nM. In addition, SERS sensor of PPy/GO film could identify CV residues in fresh fish tissues, and its recovery rate was 91.8 %-107 %. This preparing method and detecting method we proposed PPy/GO SERS substrate provide a new pathway for detecting CV residues in Marine food.

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来源期刊
Talanta
Talanta 化学-分析化学
CiteScore
12.30
自引率
4.90%
发文量
861
审稿时长
29 days
期刊介绍: Talanta provides a forum for the publication of original research papers, short communications, and critical reviews in all branches of pure and applied analytical chemistry. Papers are evaluated based on established guidelines, including the fundamental nature of the study, scientific novelty, substantial improvement or advantage over existing technology or methods, and demonstrated analytical applicability. Original research papers on fundamental studies, and on novel sensor and instrumentation developments, are encouraged. Novel or improved applications in areas such as clinical and biological chemistry, environmental analysis, geochemistry, materials science and engineering, and analytical platforms for omics development are welcome. Analytical performance of methods should be determined, including interference and matrix effects, and methods should be validated by comparison with a standard method, or analysis of a certified reference material. Simple spiking recoveries may not be sufficient. The developed method should especially comprise information on selectivity, sensitivity, detection limits, accuracy, and reliability. However, applying official validation or robustness studies to a routine method or technique does not necessarily constitute novelty. Proper statistical treatment of the data should be provided. Relevant literature should be cited, including related publications by the authors, and authors should discuss how their proposed methodology compares with previously reported methods.
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