Food and Fermentation Industries >

2019 , Vol. 45 >Issue 20: 281 - 290

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.020922

Research progress on electrochemical methods for aflatoxins detection based on carbon nanomaterials

  • YU Li ,
  • MA Fei ,
  • ZHAO Anshun ,
  • BAI Yizhen ,
  • LI Dong ,
  • LI Peiwu
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  • 1(Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs,Quality Inspection and Test Center for Oilseeds Products, Ministry of Agriculture and Rural Affairs, Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture and Rural Affairs, National Reference Laboratory for Agricultural Testing(Mycotoxin), Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China);
    2(Development Center for Science and Technology, Ministry of Agriculture and Rural Affairs, Beijing 100122, China)

Received date: 2019-04-23

  Online published: 2019-12-20

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Abstract

Aflatoxins are the most poisonous mycotoxins that were discovered so far. Compared with conventional detection methods, electrochemical methods have raised attentions, due to the advantages of simple equipment, easy-operation, high sensitivity, good selectivity and fast response. Previous developed methods for aflatoxins detection have several shortcomings in antibody immobilization, signal transfer and so on. Thereby, in the past few years, carbon nanomaterials have been widely applied in developing the new electrochemical methods, because of many distinct functions, e.g., enhancing electron transport and interfacial electrocatalytic properties, and immobilizing biomaterials, which can greatly improve the analytical method. This review summarized 3 major kinds of carbon nanomate rials, namely, graphene, carbon nanotubes and carbon nanoparticles, which have been widely applied in current electrochemical sensing systems. The mode of application of carbon nanomaterials was also summarized. In generally, carbon nanomaterials conjugated with one or more materials including noble metals, electroactive substances (such as ionic liquids or conductive polymers) and biomaterials for recognition of aflatoxins (i.e. antibodies or aptamers) were deposited on the electrodes. Subsequently, the new electrochemical methods were established by the electrical signals obtained from these electrodes. Drawbacks of current researches on electrochemical methods for aflatoxins detection are analyzed and the future research direction based on carbon nanomaterials is prospected, which can provide references for selecting suitable carbon nanomaterials and their application modes to improve the analytical systems for aflatoxins.

Key words： carbon nanomaterials; aflatoxins; electrochemical; testing; application

Cite this article

YU Li , MA Fei , ZHAO Anshun , BAI Yizhen , LI Dong , LI Peiwu . Research progress on electrochemical methods for aflatoxins detection based on carbon nanomaterials[J]. Food and Fermentation Industries, 2019 , 45(20) : 281 -290 . DOI: 10.13995/j.cnki.11-1802/ts.020922

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