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A Simple Post-processing Approach Induced Interface Recombination To Construct Hollow Cubic-shape Prussian Blue Analogs For Biosensing And Degradation Of Aflatoxins B1.

Home
Research Domains
Biological Sciences
Industrial Biotechnology
Bioprocessing, Bioproduction And Bioproducts
A Simple Post-processing Approach Induced Interface Recombination To Construct Hollow Cubic-shape Prussian Blue Analogs For Biosensing And Degradation Of Aflatoxins B1.

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A simple post-processing approach induced Interface recombination to construct hollow cubic-shape Prussian blue analogs for biosensing and degradation of aflatoxins B1.

Tianyu Zhang¹, Dai Lu², Yini Zeng¹

¹Laboratory of Micro & Nano Biosensing Technology in Food Safety, Hunan Provincial Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, PR China.

|March 15, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

Keywords:

Aflatoxins B1 Biosensing Degradation Post-processing approach

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This study introduces a novel method to enhance Prussian blue analogs (PBAs) for detecting and degrading food hazards like aflatoxins B1. The improved PBAs offer sensitive detection and effective degradation, ensuring safer food.

Area of Science:

Materials Science
Analytical Chemistry
Environmental Science

Background:

Prussian blue analogs (PBAs) are vital for detecting and degrading food hazards.
Improving PBA performance through structural modification is challenging.
Novel strategies are needed to enhance PBA efficacy.

Purpose of the Study:

To develop a new post-processing strategy for structural regulation of PBAs.
To create multifunctional PBAs with enhanced properties for food safety applications.
To establish a sensitive dual-mode sensing platform for aflatoxin B1 detection and degradation.

Main Methods:

An "interface recombination" post-processing approach was employed.
Microwave-assisted solvothermal method combined with acid etching was used.

Prussian blue analogs

A dual-mode nanoenzyme-linked immunoassay sensing platform was constructed using the modified PBAs.

Main Results:

Hollow cube-shaped M-NiMnFe-PBA with superior peroxidase-mimetic activity, photothermal effect, and photo-Fenton performance was synthesized.
The platform achieved low detection limits for aflatoxin B1: 4.96 fg/mL (colorimetric) and 1.5 pg/mL (photothermal).
Nearly complete degradation of aflatoxin B1 was achieved within 3 hours, significantly reducing its cytotoxicity.

Conclusions:

The "interface recombination" strategy effectively regulates PBA structure and enhances performance.
The developed M-NiMnFe-PBA shows great promise for sensitive detection and degradation of food hazards.
This work offers a new avenue for PBA development in food safety control.