Multi-emitter metal-organic frameworks as ratiometric luminescent sensors for food contamination and spoilage detection.
Multi-emitter metal-organic frameworks as ratiometric luminescent sensors for food contamination and spoilage detection.
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DOI：
10.1080/10408398.2023.2179594
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发表时间：
2023-02
影响因子：
10.2
通讯作者：
Shanghua Xing;Shasha Cheng;M. Tan
中科院分区：
文献类型：
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作者：
Shanghua Xing;Shasha Cheng;M. Tan
食品污染和腐败是一个全球性的问题，因为它对公众健康和食品安全产生不利影响。真实的实时监测食品质量可以降低消费者患食源性疾病的风险。特别是多发射体发光金属有机框架（LMOFs）作为比率传感材料的出现，利用MOFs的特定主客体相互作用、预浓缩和分子筛效应，为具有高灵敏度和选择性的食品质量和安全检测提供了可能性。此外，基于多发射极MOF的比率传感器的优异传感性能，包括自校准、多维识别和视觉信号读出，能够满足日益严格的食品安全评价要求。基于多发射极MOF的比率型传感器已成为食品安全检测的热点。本文综述了不同的多发射源组装体的设计策略，以构建基于至少两个发射中心的多发射极MOFs材料。用于产生多发射极M0 F的设计策略可以主要分为三类：（1）在单个M0 F相中组装多个发射构建块;（2）单个非发光M0 F或LM 0 F相作为发色团客体的基质;（3）LM 0 F与其他发光材料的异质结构杂化物。此外，还对多发射极MOF比例传感器的传感信号输出模式进行了讨论。接下来，我们重点介绍了最近的进展，多发射器的MOF比率传感器在食品污染和腐败检测的发展。最后讨论了它们在实际应用中的改进和发展方向。
Food contamination and spoilage is a worldwide concern considering its adverse effect on public health and food security. Real time monitoring food quality can reduce the risk of foodborne disease to consumers. Particularly, the emergence of multi-emitter luminescent metal-organic frameworks (LMOFs) as ratiometric sensory materials has provided the possibility for food quality and safety detection with high sensitivity and selectivity taking advantage of specific host-guest interactions, pre-concentrating and molecule-sieving effects of MOFs. Furthermore, the excellent sensing performance of multi-emitter MOF-based ratiometric sensors including self-calibration, multi-dimensional recognition and visual signal readout is able to meet the increasing rigor requirement of food safety evaluation. Multi-emitter MOF-based ratiometric sensors have become the focus of food safety detection. This review focuses on design strategies for different multiple emission sources assembly to construct multi-emitter MOFs materials based on at least two emitting centers. The design strategies for creating multi-emitter MOFs can be mainly classified into three categories: (1) multiple emission building blocks assembly in a single MOF phase; (2) single non-luminescent MOF or LMOF phase as a matrix for chromophore guest(s); (3) heterostructured hybrids of LMOF with other luminescent materials. In addition, the sensing signal output modes of multi-emitter MOF-based ratiometric sensors have critically discussed. Next, we highlight the recent progress for the development of multi-emitter MOF as ratiometric sensors in food contamination and spoilage detection. Their future improvement and advancing direction potential for their practical application is finally discussed.