Journal
MATERIALS CHEMISTRY FRONTIERS
Volume 5, Issue 5, Pages 2173-2200Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0qm01008a
Keywords
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Funding
- EPSRC [EP/R023816/1]
- EPSRC [EP/R023816/1] Funding Source: UKRI
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This article provides a detailed overview of chemosensors capable of detecting Cu2+ ions through changes in color and fluorescence intensity, with a focus on chemosensors featuring pyrene functional groups and their superior optical properties. Various fluorescence mechanisms for Cu2+ detection are discussed, along with potential future applications in biological, environmental, and medical fields.
The development of colorimetric and fluorometric chemosensors that capable of detecting Cu2+ ions by a change in colour and fluorescence intensity has been described. Herein, chemosensors having pyrene functional groups as a signaling moiety are discussed in detail as pyrene derivatives show significant photophysical properties being superior to those of other commonly used scaffolds. This review article provides a detailed overview of pyrene containing chemosensors based on fluorescence mechanisms, such as excimer/exciplex formation, photoinduced electron transfer (PET), photoinduced charge transfer (PCT), aggregation induced emission (AIE), ligand to metal charge transfer process (LMCT), chelation enhanced quenching mechanism (CHEQ), Cu2+-selective reactions for the selective and sensitive detection of Cu2+. Potential future applications are also discussed because of the fact Cu2+ ion recognition has a great significance in the biological, environmental and medical sectors.
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