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基于Cu₂O/CuO@AuNPs异构的自支持电化学免疫传感器,用于在食品中敏感和选择性检测甲素A

Yan Zhang¹, Minghui Han², Danni Peng²

¹Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering of Ministry of Education, Key Laboratory of Industrial Microbiology in Hubei Province, School of Life and Health Sciences, Hubei University of Technology, Wuhan, 430068, China; Food Hydrocolloid International Science and Technology Cooperation Base of Hubei Province, Hubei University of Technology, Wuhan, 430068, China.

|March 4, 2025

概括

这项研究介绍了一种用于检测食品中 ochratoxin A (OTA) 的新型电化学免疫试验. 开发的传感器提供了超敏感和准确的检测,这对于减少与这种真菌毒素相关的健康风险至关重要.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
食品安全食品安全

背景情况:

毒素A (OTA) 是一种强烈的真菌毒素,具有显著的和肝毒性,构成癌症风险.
准确和快速检测食品中的OTA对于公共健康至关重要.

研究的目的:

开发一种新型的,自我支持的电化学免疫试验,用于超敏感的OTA检测.
使用异质连接结构材料来增强抗体负载和信号放大.

主要方法:

用Cu2O/CuO@AuNPs异质连接结构修改的柔性碳纸电极的制造.
针对特定的OTA识别的抗OTA抗体的固定.
使用修改后的电极对OTA进行电化学检测.

主要成果:

Cu2O/CuO@AuNPs/anti-OTA电极显示出对OTA的高度敏感性和选择性.
传感器实现了0.05-200 ng mL-1的线性检测范围,以及0.2 pg mL-1.1的低检测极限.
免疫试验在玉米和大豆样本中显示出良好的准确性和恢复 (94-106%).

结论:

开发的电化学免疫测试是对食品中超敏感和准确的OTA检测的有希望的工具.
异质连接材料增强了抗体负载和电化学性能.
这种方法有助于提高食品安全,减少OTA污染的健康风险.

关键词:

核心外的异构结构.电化学传感器电化学传感器食品安全食品安全奥克拉托克辛A是一种自力支持自力支持

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