检测黄曲霉毒素M1的量子点荧光猝灭免疫分析方法

By using silanized Prussian blue nanozyme catalysis and quantum dot fluorescence quenching technology, aflatoxin M1 was detected with high sensitivity and stability, solving the problems of time-consuming detection and expensive equipment in existing technologies, and improving detection efficiency and accuracy.

CN117147506BActive Publication Date: 2026-07-17HEBEI UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEBEI UNIV OF SCI & TECH
Filing Date
2023-07-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies for detecting aflatoxin M1 suffer from time-consuming processes, expensive equipment, and insufficient sensitivity. In particular, the enzyme-linked immunosorbent assay (ELISA) has a low signal-to-noise ratio, which limits its widespread application in food safety testing.

Method used

A primary signal amplification effect was generated by silanized Prussian blue nanozymes (PBNPs), and a secondary signal amplification was generated by quantum dot fluorescence quenching. A fluorescence immunoassay technique based on quantum dot fluorescence quenching was constructed, which combines enzymatic reaction and fluorescence signal reading to achieve dual signal amplification.

Benefits of technology

It improves detection sensitivity and stability, reduces detection costs, enhances the signal-to-noise ratio in complex biological environments, overcomes the limitations of traditional ELISA, and achieves rapid detection with high sensitivity and high accuracy.

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Abstract

本发明公开了一种检测黄曲霉毒素M1的量子点荧光猝灭免疫分析方法,该分析方法利用PBNPs与黄曲霉毒素M1包被原偶联制备酶标记物,解决了传统ELISA中使用生物酶标记成本高、在恶劣条件下易于变性等缺点,同时利用荧光猝灭构建荧光免疫分析技术能够在复杂的生物环境中提高信噪比(S / N),具有背景干扰小、检测范围宽、高灵敏度、高准确性等特点,从而增加了待测目标物的灵敏度和检测系统的稳定性,突破了传统ELISA的局限性,实现了双重信号放大提高检测灵敏度和增加检测系统稳定性等目的。
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