Background

Along with the intensification of global food supply, food security has become a fateful barrier throughout the global food trade and delivery. Reliable analytic techniques are in strong need to keep up with the continuous demand for food quality and safety monitoring.

Scope and approach

In this review, the current strategies for different fluorescence mechanisms of MOF-based sensors for food detection are classified and we highlight the construction strategy of MOFs to obtain high performance and multiple photonic function. In addition, recent applications of LMOFs in food safety analyzing as well as the typical sensing mechanisms are reviewed. Finally, we also outline the challenges in these fields and put forward the prospects for future development of LMOFs in food analysis.

Key findings and conclusions

Fluorescent MOFs have been utilized as sensors to alleviate the food safety problems. The vast combination possibilities, synergistic effects, as well as controllable and ordered arrangements of multiple fluorescent units have distinguished MOFs from other analysis techniques and enabled them to be a promising platform for food quality and safety control. Reasonable crystal engineering principles offers MOFs with the structure–property correlations and varied fluorometric sensing properties, resulting in a rapidly increasing application in food safety.

中文翻译：

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发光金属有机框架（LMOF）：食品质量和安全控制的新兴传感平台

背景

随着全球粮食供应的增加，粮食安全已成为全球粮食贸易和交付中的重大障碍。迫切需要可靠的分析技术来满足对食品质量和安全监控的不断需求。

范围和方法

在这篇综述中，对基于MOF的食品检测传感器的不同荧光机理的当前策略进行了分类，我们重点介绍了MOF的构建策略，以获得高性能和多光子功能。此外，综述了LMOF在食品安全分析中的最新应用以及典型的传感机制。最后，我们还概述了这些领域中的挑战，并提出了食品分析中LMOF的未来发展前景。

主要发现和结论

荧光MOF已被用作减轻食品安全问题的传感器。巨大的组合可能性，协同效应以及多个荧光单元的可控制和有序排列将MOF与其他分析技术区分开来，使它们成为食品质量和安全控制的有前途的平台。合理的晶体工程原理为MOF提供了结构与属性的关联以及各种荧光传感特性，从而在食品安全中的应用迅速增加。