Development of an electrochemical sensor modified with gold nanoparticles for detecting fumonisin B1 in packaged foods

文献类型： 外文期刊

第一作者： Zhao, Liyuan

作者： Zhao, Liyuan;Zhou, Longzhu;Dansou, Dieudonne M.;Tang, Chaohua;Zhang, Junmin;Qin, Yuchang;Yu, Yanan

作者机构：

期刊名称：RSC ADVANCES （ 影响因子：4.6； 五年影响因子：4.3 ）

ISSN：

年卷期： 2024 年 14 卷 40 期

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收录情况： SCI

摘要： Fumonisin B1 (FB1) is naturally present in the environment and can easily contaminate packaged foods during processing, storage and transportation, thus posing a threat to human health. We have developed an enzyme-free FB1 detector for the detection of packaged foods, which provides rapid and sensitive detection of FB1 in food. Gold nanoparticles (AuNPs; 5-10 nm) were uniformly dispersed on screen-printed electrodes, which acted as an excellent catalytic oxidizer. The surface structure of the modified electrode was characterized using scanning electron microscope and X-ray photoelectron spectroscopy. Differential pulse voltammetry demonstrated a good linear electrochemical response towards FB1 at concentrations ranging from 1 ng L-1 to 1 mg L-1 with a detection limit of 0.08 ng L-1. We employed the AuNPs-SPE sensor to detect FB1-spiked packaged meat products achieving recovery rates ranging from 89.7% to 113.3%. Fumonisin B1 (FB1) is naturally present in the environment and can easily contaminate packaged foods during processing, storage and transportation, and electrochemical detection provides a simple way to obtain sensitive detection results.

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