基于MXene/BiVO4异质结的分子印迹ECL传感器检测玉米粉中的脱氧雪腐烷醇

IF 5.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Control Pub Date : 2025-04-19 DOI:10.1016/j.foodcont.2025.111375

Jianhui Lyu, Zhenrun Li, Peilin Wang, Ning Liu, Qiang Ma

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引用次数: 0

摘要

脱氧雪腐镰刀菌醇（DON）是一种严重影响食品安全的真菌毒素，它是一种热稳定的真菌毒素，在传统的食品加工过程中持续存在。本研究建立了一种新的电化学发光（ECL）检测DON的方法。首先，采用水热法制备了BiOCl纳米片作为ECL纳米发射器。此外，制备了MXene/BiVO4异质结，该异质结具有BiVO4纳米颗粒（NPs）的窄带隙结构和MXene优异的导电性。MXene/BiVO4异质结提供了一个导电网络，以实现BiOCl NSs的显着ECL增强。然后，建立了具有BiOCl NSs和MXene/BiVO4异质结的分子印迹聚合物(MIP)-ECL传感器来检测DON。结果表明：线性范围为5 pM ~ 100 μM，检出限为0.54 pM；DON的检出回收率为85.0% ~ 119%。该MIP-ECL策略为玉米粉中DON的检测提供了一种稳定、经济的新方法。

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MXene/BiVO4 heterojunction-based molecularly imprinted ECL sensor for deoxynivalenol detection in corn flour

Deoxynivalenol (DON) is a serious mycotoxin contamination to food safety, which is a thermally stable mycotoxin that persists through conventional food processing. In this study, a novel electrochemiluminescence (ECL) method was developed for DON detection. Firstly, BiOCl nanosheets (NSs) were synthesized as ECL nano-emitter using the hydrothermal method. Furthermore, the MXene/BiVO₄ heterojunction was prepared, which possessed the narrow bandgap structure of BiVO₄ nanoparticles (NPs) and the exceptional electrical conductivity of MXene. MXene/BiVO₄ heterojunction provided a conductive network to achieve the significant ECL enhancement of BiOCl NSs. Then, a molecularly imprinted polymer (MIP)-ECL sensor with BiOCl NSs and MXene/BiVO₄ heterojunction was established to detect DON. The results showed that the linear range was 5 pM–100 μM with a detection limit of 0.54 pM. The satisfactory recoveries ranged from 85.0 % to 119 % were obtained for the detection of DON. This MIP-ECL strategy provides a new highly stable and cost-effective method for DON detection in corn flour.

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来源期刊

Food Control 工程技术-食品科技

CiteScore

12.20

自引率

6.70%

发文量

758

审稿时长

33 days

期刊介绍： Food Control is an international journal that provides essential information for those involved in food safety and process control. Food Control covers the below areas that relate to food process control or to food safety of human foods: • Microbial food safety and antimicrobial systems • Mycotoxins • Hazard analysis, HACCP and food safety objectives • Risk assessment, including microbial and chemical hazards • Quality assurance • Good manufacturing practices • Food process systems design and control • Food Packaging technology and materials in contact with foods • Rapid methods of analysis and detection, including sensor technology • Codes of practice, legislation and international harmonization • Consumer issues • Education, training and research needs. The scope of Food Control is comprehensive and includes original research papers, authoritative reviews, short communications, comment articles that report on new developments in food control, and position papers.