聚集诱导发光材料在食品安全检测中的应用

Food Safety Detection Using Aggregation-induced Emission Materials

食品中有害物质的快速检测对预防食源性疾病和保障食品安全至关重要。荧光传感具有选择性好、灵敏度高和响应迅速等优点,相较于传统的检测方法具有很大的应用优势。聚集诱导发光材料(AIEgens)在分散状态下荧光较弱,而在聚集态时发出强烈的荧光,可有效克服传统荧光材料聚集荧光猝灭(ACQ)的应用局限。独特的荧光激活特性、较弱的背景荧光、较大的斯托克斯位移和出色的光稳定性等优势将AIEgens推广到食品安全检测领域。本文分析了近年来AIEgens在食品安全检测中的应用进展,如检测农药残留、兽药残留、重金属、病原体、食品添加剂等的荧光传感器,并对其存在的问题和应用前景进行了总结和展望。

Rapid detection of food contaminants is essential for preventing foodborne diseases and ensuring food safety.Fluorescence sensors with high selectivity,sensitivity and rapid responsibility exhibit superior advantages than common detection methods.Aggregation-induced emission luminogens(AIEgens)emit weakly in the molecular or dispersed state while exhibit strong fluorescence in the aggregated state,which effectively overcome the limitation caused by aggregation-caused quenching(ACQ)effect.AIEgens have been extensively applied in food safety detection because of its unique“off-on”fluorescence,ignorable background fluorescence,large Stokers shift and excellent photostability.In this article,the applications of AIEgens sensors for pesticides,veterinary drugs,heavy metals,pathogens,food additives and the detection mechanisms were reviewed.Finally,the existing problems and future developments were also summarized and prospected.