Metal-organic frameworks (MOFs) as fluorescence sensors: principles, development and prospects

MOFs are self-assembled by inorganic metals and organic ligands, which have the advantages of inorganic and organic materials. With their porosity, chemical tunability and moderate-to-high stability, MOFs have become excellent candidates for fluorescent sensors. The accuracy, sensitivity, selectivit...

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Published inCrystEngComm Vol. 24; no. 45; pp. 7881 - 791
Main Authors Wu, Tingting, Gao, Xiang-jing, Ge, Fayuan, Zheng, He-gen
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 21.11.2022
Subjects
Fluorescence
Metal-organic frameworks
Organic materials
Pollution detection
Principles
Selectivity
Self-assembly
Sensors
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Summary:MOFs are self-assembled by inorganic metals and organic ligands, which have the advantages of inorganic and organic materials. With their porosity, chemical tunability and moderate-to-high stability, MOFs have become excellent candidates for fluorescent sensors. The accuracy, sensitivity, selectivity and linear range of the MOF-based fluorescence sensor can be further improved by introducing other fluorescent molecules into the MOFs. MOF-based fluorescence sensors can be widely used in water and air pollution detection, early diagnosis and treatment of diseases and other fields. This review focuses on the principles of MOF-based fluorescence sensors, including the origin of the fluorescence signal, response mode and mechanism. The latest developments in MOF-based fluorescence sensors are reported according to the classification of the analytes. The challenges faced by MOF-based fluorescence sensors are also discussed and some solutions and directions for the future are proposed. This review classifies the latest developments of MOF-based fluorescence sensors according to the analytes, and discusses the challenges faced by MOF-based fluorescence sensors and promotes some directions for future research.
Bibliography:Tingting Wu received her BE degree from Nanjing University of Science and Technology in 2019. Currently, she is working in Professor Hegen Zheng's group in inorganic chemistry at Nanjing University as a PhD Scholar. Her research is focused on design and synthesis of metal-organic frameworks.
Xiangjing Gao received her PhD degree under the supervision of Prof. Hegen Zheng at Nanjing University in 2021. Currently, she is working at China Fire and Rescue Institute. Her research mainly focuses on the design and synthesis of metal-organic frameworks by using crystal engineering.
Hegen Zheng received his PhD degree in inorganic chemistry under the supervision of Prof. Xinquan Xin at Nanjing University in 1998. He has been a full professor at Nanjing University since 2005. He worked as a visiting scholar at The Hong Kong University of Science and Technology (1997-1998) and had post-doctoral experience at Hokkaido University, Japan (1999-2000). His research mainly focuses on crystal engineering of coordination compounds, supramolecular chemistry, dye-sensitized solarcells, and green energy materials.
Fayuan Ge received his bachelor's and master's degrees from Heilongjiang University. Currently, he is a Ph.D. candidate at Nanjing University under the supervision of Prof. Hegen Zheng. His research is focused on the design and synthesis of light-directed metal-organic frameworks.
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ISSN:1466-8033
1466-8033
DOI:10.1039/d2ce01159j