Novel polycyclic "turn-on" and "turn-off" pyrazoline and pyrazole fluorescent sensors for selective real-world monitoring of Fe/Fe in aqueous environments

Seven novel polycyclic pyrazoline and pyrazole sensors were synthesised and screened for useful photophysical properties with pyrazoline 2 and pyrazole 7 , displaying an Fe 3+ "turn-off" response in aqueous environments with Fe 3+ limits of detection (LoD) of 2.12 μM and 3.41 μM, respectiv...

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Bibliographic Details
Published in:RSC advances 2024-10, Vol.14 (47), p.34918-34924
Main Author: Ciupa, Alexander
Format: Article
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Summary:Seven novel polycyclic pyrazoline and pyrazole sensors were synthesised and screened for useful photophysical properties with pyrazoline 2 and pyrazole 7 , displaying an Fe 3+ "turn-off" response in aqueous environments with Fe 3+ limits of detection (LoD) of 2.12 μM and 3.41 μM, respectively. Both 2 and 7 sensors functioned in aqueous environments with real-world examples of Fe 3+ detection in tap water and mineral water samples. 2 and 7 are suitable for the detection of Fe 3+ at concentrations below the maximum iron limits for drinking water set by the Environmental Protection Agency (EPA) and European Union (EU). Seven novel polycyclic pyrazoline and pyrazole sensors were synthesised and screened for useful photophysical properties with pyrazoline 2 and pyrazole 7 , displaying an Fe 3+ "turn-off" response in aqueous environments.
ISSN:2046-2069
DOI:10.1039/d4ra06457g