Photoelectrochemical immunoassay of aflatoxin B1 in foodstuff based on amorphous TiO2 and CsPbBr3 perovskite nanocrystals

Su, Lingshan; Tong, Ping; Zhang, Lijia; Luo, Zhongbin; Chen, Fu; Tang, Dianping; Zhang, Yuyu

doi:10.1039/c9an00994a

Cited by 55 publications

(24 citation statements)

References 34 publications

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“…Due to the strong carcinogenic effect of AFB1, PEC sensors based on different strategies were developed to detect AFB1. [148][149][150][151][152][153][154][155][156][157][158] Zhang et al fabricated a signal-on PEC aptasensor to detect AFB1. 148 The affinity reaction between AFB1 and the aptamer on the surface of the modified electrode results in the detachment of the AFB1 aptamer from the electrode's surface.…”

Section: Toxinsmentioning

confidence: 99%

Research progress on photoelectrochemical sensors for contamination analysis in agricultural fields

et al. 2022

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The establishment of rapid and efficient contamination detection methods in agricultural fields is of great significance for safeguarding agricultural production and human health, and for ensuring the healthy development of agricultural industries. As a booming analytical method, photoelectrochemical (PEC) sensors, which combine the advantages of electrochemical analysis and optical analysis, have received increasing research attention. Due to the complete separation of the excitation source (light) and the detection signal (current), the background signal of PEC sensors is greatly decreased, and their sensitivity is high. This review aims to cover the advances in PEC sensors for contamination analysis in agricultural fields over the past five years, including analysis of heavy metals, antibiotics, pesticides, and toxins. The future prospects in this field are also discussed.

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Section: Toxinsmentioning

confidence: 99%

Research progress on photoelectrochemical sensors for contamination analysis in agricultural fields

et al. 2022

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“…Thus, AFB1 was detected. All-inorganic perovskite CsPbBr 3 nano-crystals (CsPbBr 3 /a-TiO 2 ) also could be used as photosensitive materials for quantitating AFB1 [90].…”

Section: Competitive Type Of "Signal-off" Pec Biosensorsmentioning

confidence: 99%

Mycotoxins Detection Based on Electrochemical Approaches

et al. 2021

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Electrochemical biosensors have attracted much attention in mycotoxin bioanalysis. In this review, three electrochemical biosensor technologies for mycotoxins were reviewed, including general electrochemistry, photoelectrochemistry, and electrochemiluminescence. Based on the classification of multiple electrochemical detection methods, the design schemes, recognition mechanism and probe materials were described in detail. Moreover, the characteristics and limitations of these electrochemical biosensors were summarized. The challenges and future trends of electrochemical biosensor development in mycotoxin bioanalysis were also briefly discussed in the end. This review is expected to provide some inspirations for point-of-care testing in electrochemical sensors for mycotoxins and further electrochemical analysis application.

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“…Food safety, relating to human health, is one of the major public health security incidents facing the world. , Numerous chemical and biological hazards present in a variety of food matrixes can lead to serious consequences including acute diarrhea, kidney and liver failures, brain and neural disorders, reactive arthritis, cancer, and even death. − Foodborne diseases have resulted in illness in almost 1 of 10 people, leading to 420 000 deaths every year worldwide, as estimated by the World Health Organization (). According to the reports of the National Foodborne Disease Outbreak Surveillance System in China, 19 517 incidents of foodborne disease occurred during 2003–2017, resulting in 235 754 illnesses, 107 470 hospitalizations, and 1 457 deaths .…”

Section: Introductionmentioning

confidence: 99%

Advances in Chicken IgY-Based Immunoassays for the Detection of Chemical and Biological Hazards in Food Samples

Dou

Zhang

Bai

et al. 2022

J. Agric. Food Chem.

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As antibodies are the main biological binder for hazards in food samples, their performance directly determines the sensitivity, specificity, and reproducibility of the developed immunoassay. The overwhelmingly used mammalian-derived antibodies usually suffer from complicated preparation, high cost, frequent bleeding of animals, and sometimes low titer and affinity. Chicken yolk antibody (IgY) has recently attracted considerable attention in the bioanalytical field owing to its advantages in productivity, animal welfare, comparable affinity, and high specificity. However, a broad understanding of the application of IgY-based immunoassay for the detection of chemical and biological hazards in food samples remains limited. Here, we briefly summarized the diversity, structure, and production of IgY including polyclonal and monoclonal formats. Then, a comprehensive overview of the principles, designs, and applications of IgY-based immunoassays for these hazards was reviewed and discussed, including food-borne pathogens, food allergens, veterinary drugs, pesticides, toxins, endocrine disrupting chemicals, etc. Thus, the trend of IgY-based immunoassays is expected, and more IgY types, higher sensitivity, and diversification of recognition-to-signal manners are necessary in the future.

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Photoelectrochemical immunoassay of aflatoxin B₁ in foodstuff based on amorphous TiO₂ and CsPbBr₃ perovskite nanocrystals

Abstract: A split-type photoelectrochemical immunoassay was designed to detect AFB1 in foodstuffs using amorphous TiO2 and CsPbBr3 perovskite nanocrystals.

Cited by 55 publications

References 34 publications

Research progress on photoelectrochemical sensors for contamination analysis in agricultural fields

Research progress on photoelectrochemical sensors for contamination analysis in agricultural fields

Mycotoxins Detection Based on Electrochemical Approaches

Advances in Chicken IgY-Based Immunoassays for the Detection of Chemical and Biological Hazards in Food Samples

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