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基于Hemin@ZIF-90纳米酶调制信号放大器的Pyrococcus furiosus Argonaute生物传感平台,用于敏感检测沙门氏菌

Xiru Zhang¹, Manyan Qiu¹, Yiyi Zhang¹

¹Key Laboratory of Dairy Science, Ministry of Education, Department of Food Science, Northeast Agricultural University, Harbin 150030, China.

|August 22, 2025

概括

一个新的生物传感器,AgoZyme,能够高灵敏地检测出沙门氏菌. 这种Pyrococcus furiosus Argonaute (PfAgo) 和Hemin@ZIF-90纳米酶平台增强了食品安全检测方法.

科学领域:

生物技术
食品安全问题
纳米技术

背景情况:

通过食物传播的病原体对公众健康和食品安全构成重大风险.
准确和灵敏的检测方法对于减轻这些风险至关重要.

研究的目的:

开发一种新的生物传感平台,用于对沙门氏菌的敏感和特定检测.
将Pyrococcus furiosus Argonaute (PfAgo) 与金属有机框架 (MOF) 纳米酶集成,以提高检测能力.

主要方法:

使用自组合策略合成了具有过氧化酶活性的Hemin@ZIF-90纳米酶.
将PfAgo蛋白的识别和分裂能力与Hemin@ZIF-90纳米酶相结合.
这种被称为AgoZyme的综合系统被用作Salmonella typhimurium检测的生物传感器.

主要成果:

该AgoZyme生物传感器在检测沙门氏菌型菌方面表现出极好的灵敏度和特异性.
在 10^1 到 10^8 CFU/mL 的线性范围内达到 1 CFU/mL 的检测极限.
生物传感器有效地将纳米酶的催化活性与PfAgo的特定识别相结合.

结论:

开发的AgoZyme生物传感器提供了一种有前途的新方法来检测食源性病原体.
这项工作为设计用于关键食品安全应用的先进生物传感器提供了新的见解.
纳米酶和特定生物分子的整合代表了生物感应的强大策略.

关键词:

生物传感器检测方式金属有机框架纳米酶皮洛科克斯愤怒的阿尔戈诺特沙门氏菌

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