A label-free photoelectrochemical sensor based on BiVO4@graphene oxide hybrid for analysis of the antioxidant capacity in food

IF 4.5 3区化学 Q1 Chemical Engineering Journal of Electroanalytical Chemistry Pub Date : 2023-08-12 DOI:10.1016/j.jelechem.2023.117713

Fangjie Han , Shulin Luo , Zhifang Wu , Zhishan Liang , Wenxin Yang , Dongxue Han , Zhonghui Sun , Zhenbang Liu , Li Niu

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Abstract

Antioxidant can protect body from free radical and dietary intake is a major source of antioxidants for human body. Therefore, it is particularly important to evaluate the antioxidant capacity of food and drink in daily diet. Herein, a label-free photoelectrochemical (PEC) sensor based on BiVO₄@graphene oxide (GO) hybrid has been developed for antioxidants analysis and applied it to antioxidant capacity detection of real samples. Five representative antioxidants including ascorbic acid (AA), caffeic acid (CA), chlorogenic acid (CHA), fisetin (FT) and quercetin (QT) were determined by this PEC sensor to acquire photocurrent response at different concentrations. This PEC sensor exhibited excellent sensitivity and anti-interference. Furthermore, antioxidant capacity of food samples was assessed utilizing this PEC sensor, indicating the practicability and accuracy of this PEC sensor. This study suggests that BiVO₄@GO composites constructed PEC sensor can provide a practical and fast method for detecting antioxidant capacity in the field of food.

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一种基于BiVO4@graphene氧化物杂化物的无标签光电化学传感器，用于分析食品中的抗氧化能力

抗氧化剂可以保护人体免受自由基的侵害，饮食摄入是人体抗氧化剂的主要来源。因此，在日常饮食中评估食品和饮料的抗氧化能力就显得尤为重要。本文研制了一种基于BiVO4@graphene氧化物(GO)杂化物的无标记光电化学(PEC)传感器，用于抗氧化剂分析，并将其应用于实际样品的抗氧化能力检测。用该传感器测定了抗坏血酸(AA)、咖啡酸(CA)、绿原酸(CHA)、非西汀(FT)和槲皮素(QT)等5种具有代表性的抗氧化剂在不同浓度下的光电流响应。该传感器具有良好的灵敏度和抗干扰性。利用该传感器对食品样品的抗氧化能力进行了评价，验证了该传感器的实用性和准确性。该研究表明BiVO4@GO复合材料构建的PEC传感器可为食品领域抗氧化能力的检测提供一种实用、快速的方法。

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

Journal of Electroanalytical Chemistry Chemical Engineering-General Chemical Engineering

CiteScore

7.50

自引率

6.70%

发文量

912

审稿时长

>12 weeks

期刊介绍： The Journal of Electroanalytical Chemistry is the foremost international journal devoted to the interdisciplinary subject of electrochemistry in all its aspects, theoretical as well as applied. Electrochemistry is a wide ranging area that is in a state of continuous evolution. Rather than compiling a long list of topics covered by the Journal, the editors would like to draw particular attention to the key issues of novelty, topicality and quality. Papers should present new and interesting electrochemical science in a way that is accessible to the reader. The presentation and discussion should be at a level that is consistent with the international status of the Journal. Reports describing the application of well-established techniques to problems that are essentially technical will not be accepted. Similarly, papers that report observations but fail to provide adequate interpretation will be rejected by the Editors. Papers dealing with technical electrochemistry should be submitted to other specialist journals unless the authors can show that their work provides substantially new insights into electrochemical processes.