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Coumaryl crown ether based chemosensors: selective detection of saxitoxin in the presence of sodium and potassium ions

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Péter Kele, Jhony Orbulescu, Tiffany L. Calhoun, Robert E. Gawley and Roger M. Leblanc

Editorial: Elsevier Ltd., Tetrahedron Letters, 43 (25), p.4413-4416, 2002.


Two novel fluorescent chemosensors in which an aza-crown is linked to 4-coumaryl fluorophores by a methylene spacer have been synthesized for sensing saxitoxin. Fluorescence enhancement was observed upon binding of the dicationic toxin molecule, whereas several metal ions produced no effect.

Cuvinte cheie: coumarin; saxitoxin; fluorescence

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