A facile coordination-assisted method to fabricate a FRET-based fluorescent probe for ratiometric analysis with improved selectivity

Publication date: November 2017
Source:Sensors and Actuators B: Chemical, Volume 252
Author(s): Wenjing Wang, Yameng Li, Police Vishnuvardhn Reddy, Xuanjun Zhang, Daqiang Yuan
Here we report a facile coordination-assisted method to construct a FRET-based probe that shows ratiometric detection of metal ions with improved selectivity. Probe 2 exhibits good sensitivity and selectivity towards the Fe³⁺ and Al³⁺ over other cations in aqueous acetonitrile solution. Probe 1 can be formed in situ by a convenient addition of Salen-Zn complex, which can further discriminate the Fe³⁺ from Al³⁺ with different ratiometric fluorescence responses.



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