Journal
CHEMPLUSCHEM
Volume 84, Issue 3, Pages 252-259Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cplu.201800574
Keywords
aza-BODIPY dyes; cyanide; near-infrared fluorescence; selectivity; sensors
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Funding
- Thailand Research Fund [RTA 6080005]
- Faculty of Science, Silpakorn University [RSA 6080058]
- Faculty of Science, Silpakorn University, Thailand [SRF-JRG-2561-02]
- DPST Research grant [005/2557]
- Royal Golden Jubilee (RGJ) Ph.D. Program [PHD/0079/2558]
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A near-infrared chemodosimeter based on an aza-BODIPY dye was designed and synthesized. The sensor contains isothiocyanate groups for cyanide ion sensing. The sensing function was illustrated via the fluorescence changes in near-infrared frequencies as well as chromogenic changes which could be easily visualized with a detection limit of 19 ppb. The sensor provides high selectivity to CN- and discriminates other anions such as CH3COO-, HPO4-, HSO4-, ClO3-, CO32-, SO42-, NO3-, Cl-, F-, Br-, I-, and phenylalanine (Phe) in 50 % PBS buffer/acetonitrile at physiological pH. The potential of the sensor for CN- detection in both aqueous buffer solutions and living cells imaging was demonstrated.
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