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- W4378528744 abstract "In this paper, the potassium cobalt hexacyanoferrate (II), K2CoFe(CN)6, with peroxidase-like activity was used for the fabrication of a novel label-free Lactobacillus rhamnosus GG (LGG) electrochemical immunosensor. The K2CoFe(CN)6 nanocubes were made by a simple hydrothermal method and followed by low-temperature calcination. In addition to structural characterization, the peroxidase-mimicking catalytic property of the material was confirmed by a chromogenic reaction. It is known that H2O2 can oxidize electroactive thionine molecules under the catalysis of horseradish peroxidase (HRP). In this nanozyme-based electrochemical immunoassay, due to the steric hindrance, the formation of immune-complex of LGG and LGG antibody on the modified GCE inhibits the catalytic activity of the peroxidase mimics of K2CoFe(CN)6 and thus reduced the current signal. Therefore, the developed electrochemical immunosensor achieved quantitative detection of LGG. Under optimal conditions, the linear range of the sensor was obtained from 101 to 106 CFU mL−1 with a minimum detection limit (LOD) of 12 CFU mL−1. Furthermore, the immunosensor was successfully applied in the quantitative detection of LGG in dairy product samples with recoveries ranging from 93.2% to 106.8%. This protocol presents a novel immunoassay method, which provides an alternative implementation pathway for the quantitative detection of microorganisms." @default.
- W4378528744 created "2023-05-28" @default.
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- W4378528744 date "2023-11-01" @default.
- W4378528744 modified "2023-09-23" @default.
- W4378528744 title "Potassium cobalt hexacyanoferrate as a peroxidase mimic for electrochemical immunosensing of Lactobacillus rhamnosus GG" @default.
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- W4378528744 doi "https://doi.org/10.1016/j.talanta.2023.124746" @default.
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