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Open AccessReview

Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing

by Ming Hui Chua 1,†, Kwok Wei Shah 2,*,†, Hui Zhou 1 and Jianwei Xu 1,3,*
1
Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
2
Department of Building, School of Design and Environment, National University of Singapore, 4 Architecture Drive, Singapore 117566, Singapore
3
Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
*
Authors to whom correspondence should be addressed.
Both authors contribute equally to this manuscript.
Academic Editor: F. Christopher Pigge
Molecules 2019, 24(15), 2711; https://doi.org/10.3390/molecules24152711
Received: 3 July 2019 / Revised: 18 July 2019 / Accepted: 23 July 2019 / Published: 25 July 2019
(This article belongs to the Special Issue Aggregation-Induced Emission: Materials and Applications)
The discovery of the aggregation-induced emission (AIE) phenomenon in the early 2000s not only has overcome persistent challenges caused by traditional aggregation-caused quenching (ACQ), but also has brought about new opportunities for the development of useful functional molecules. Through the years, AIE luminogens (AIEgens) have been widely studied for applications in the areas of biomedical and biological sensing, chemosensing, optoelectronics, and stimuli responsive materials. Particularly in the application of chemosensing, a myriad of novel AIE-based sensors has been developed to detect different neutral molecular, cationic and anionic species, with a rapid detection time, high sensitivity and high selectivity by monitoring fluorescence changes. This review thus summarises the recent development of AIE-based chemosensors for the detection of anionic species, including halides and halide-containing anions, cyanides, and sulphur-, phosphorus- and nitrogen-containing anions, as well as a few other anionic species, such as citrate, lactate and anionic surfactants. View Full-Text
Keywords: aggregation–induced emission (AIE), anion; chemosensor; detection; sensing aggregation–induced emission (AIE), anion; chemosensor; detection; sensing
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MDPI and ACS Style

Chua, M.H.; Shah, K.W.; Zhou, H.; Xu, J. Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing. Molecules 2019, 24, 2711.

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