Abstract
In this work, we synthesized a simple fluorescent molecule based on quinoline derivative. It displayed excellent sensitivity and selectivity toward copper ions. Upon addition of Cu2+, this molecule exhibited fluorescence quenching due to a fast electron transfer mechanism, the detection limit for Cu2+ of this sensor could be 6.17×10–7μmol L–1. Simultaneously, the cell imaging experiments were utilized to demonstrate its applicability in biological systems.
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