Potential powered EC-SERS for sensitive detection of acetamiprid

IF 5.3 2区农林科学 Q1 ENGINEERING, CHEMICAL

Journal of Food Engineering Pub Date : 2024-04-27 DOI:10.1016/j.jfoodeng.2024.112109

Ting Wu , Xuemei Tang , Wei Zeng , Yu Han , Sihang Zhang , Jing Wei , Long Wu

{"title":"Potential powered EC-SERS for sensitive detection of acetamiprid","authors":"Ting Wu , Xuemei Tang , Wei Zeng , Yu Han , Sihang Zhang , Jing Wei , Long Wu","doi":"10.1016/j.jfoodeng.2024.112109","DOIUrl":null,"url":null,"abstract":"<div><p>Surface-enhanced Raman spectroscopy (SERS) is a powerful tool for rapid and sensitive detection of pesticide residues in food, and the applied potential regulated SERS technique can be endowed with a higher sensitivity. In this work, we developed an electrochemical-surface enhanced Raman spectroscopy (EC-SERS) sensor for the rapid detection of acetamiprid (AAP) in vegetables. AuNPs/ITO were prepared via in-situ electrodeposition of gold nanoparticles (AuNPs) on an indium tin oxide (ITO) both as a SERS substrate and working electrode. By adding AAP into an in-situ Raman electrolytic cell with an applied electrochemical potential (+0.3 V), the SERS intensity was enhanced by 4-fold and the characteristic signal was linearly related to the concentration of AAP. Under the optimal conditions, the EC-SERS method exhibited a linear detection range from 0.05 to 50 μM, with a limit of detection (LOD, 3S/M) of 0.02 μM. Simultaneously, based on density functional theory (DFT), the adsorption characteristics of AAP on AuNPs/ITO were studied in the presence of electric field. The method was finally confirmed by HPLC-MS for the detection of real samples, revealing its potential application in food safety.</p></div>","PeriodicalId":359,"journal":{"name":"Journal of Food Engineering","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Food Engineering","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0260877424001754","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Surface-enhanced Raman spectroscopy (SERS) is a powerful tool for rapid and sensitive detection of pesticide residues in food, and the applied potential regulated SERS technique can be endowed with a higher sensitivity. In this work, we developed an electrochemical-surface enhanced Raman spectroscopy (EC-SERS) sensor for the rapid detection of acetamiprid (AAP) in vegetables. AuNPs/ITO were prepared via in-situ electrodeposition of gold nanoparticles (AuNPs) on an indium tin oxide (ITO) both as a SERS substrate and working electrode. By adding AAP into an in-situ Raman electrolytic cell with an applied electrochemical potential (+0.3 V), the SERS intensity was enhanced by 4-fold and the characteristic signal was linearly related to the concentration of AAP. Under the optimal conditions, the EC-SERS method exhibited a linear detection range from 0.05 to 50 μM, with a limit of detection (LOD, 3S/M) of 0.02 μM. Simultaneously, based on density functional theory (DFT), the adsorption characteristics of AAP on AuNPs/ITO were studied in the presence of electric field. The method was finally confirmed by HPLC-MS for the detection of real samples, revealing its potential application in food safety.

Abstract Image

查看原文本刊更多论文

EC-SERS 用于灵敏检测啶虫脒的潜力

表面增强拉曼光谱（SERS）是快速、灵敏检测食品中农药残留的有力工具，应用电位调节的 SERS 技术可以提高灵敏度。在这项工作中，我们开发了一种电化学-表面增强拉曼光谱（EC-SERS）传感器，用于快速检测蔬菜中的啶虫脒（AAP）。通过在铟锡氧化物（ITO）上原位电沉积金纳米粒子（AuNPs）制备了 AuNPs/ITO，既可作为 SERS 基底，也可作为工作电极。在施加电化学电位（+0.3 V）的原位拉曼电解池中加入 AAP 后，SERS 强度增强了 4 倍，特征信号与 AAP 的浓度成线性关系。在最佳条件下，EC-SERS 方法的线性检测范围为 0.05 至 50 μM，检测限（LOD，3S/M）为 0.02 μM。同时，基于密度泛函理论（DFT）研究了AAP在电场作用下在AuNPs/ITO上的吸附特性。最后，该方法在实际样品的检测中得到了高效液相色谱-质谱（HPLC-MS）的证实，揭示了其在食品安全领域的应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Food Engineering 工程技术-工程：化工

CiteScore

11.80

自引率

5.50%

发文量

275

审稿时长

24 days

期刊介绍： The journal publishes original research and review papers on any subject at the interface between food and engineering, particularly those of relevance to industry, including: Engineering properties of foods, food physics and physical chemistry; processing, measurement, control, packaging, storage and distribution; engineering aspects of the design and production of novel foods and of food service and catering; design and operation of food processes, plant and equipment; economics of food engineering, including the economics of alternative processes. Accounts of food engineering achievements are of particular value.

文献相关原料

公司名称	产品信息	采购帮参考价格