发光
荧光
对偶(语法数字)
金属有机骨架
化学
干扰(通信)
聚集诱导发射
信号(编程语言)
光电子学
纳米技术
计算机科学
材料科学
有机化学
电信
物理
光学
吸附
艺术
文学类
频道(广播)
程序设计语言
作者
Shuxin Zhang,Jingyu Xiao,Gaoyu Zhong,Tailin Xu,Xueji Zhang
出处
期刊:Analyst
[The Royal Society of Chemistry]
日期:2024-01-01
摘要
Metal-organic frameworks (MOFs) are novel inorganic-organic hybridized crystals with a wide range of applications. In the last twenty years, fluorescence sensing based on MOFs has attracted much attention. MOFs can exhibit luminescence from metal nodes, ligands or introduced guests, which provides an excellent fluorescence response in sensing. However, single-signal emitting MOFs are susceptible to interference from concentration, environment, and excitation intensity, resulting in poor accuracy. To overcome the shortcomings, dual-emission MOF-based ratiometric fluorescence sensors have been proposed and rapidly developed. In this review, we first introduce the luminescence mechanisms, synthetic methods, and detection mechanisms of dual-emission MOFs, highlight the strategies for constructing ratiometric fluorescence sensors based on dual-emission MOFs, and classify them into three categories: intrinsic dual-emission and single-emission MOFs with luminescent guests, and non-emission MOFs with other luminescent materials. Then, we summarize the recent advances in dual-emission MOF-based ratiometric fluorescence sensors in various analytical industries. Finally, we discuss the current challenges and prospects for the future development of these sensors.
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