A dual-mode chemosensor: Highly selective colorimetric fluorescent probe for Cu2+ and F- ions

Duraisamy Udhayakumari, Sivan Velmathi*, Wei Chieh Chen, Shu-Pao Wu

*Corresponding author for this work

研究成果: Article同行評審

32 引文 斯高帕斯(Scopus)

摘要

N-Phenylthiosemicarbazones (R1-R4) have been synthesized and characterized by various spectroscopic techniques. The sensors (R1-R4) exhibited highly selective and sensitive recognition toward Cu2+ and F- ions over other cations and anions via visual color change. Sensors showed a significant fluorescent enhancement toward Cu2+ in aqueous medium and found a sub-nanomolar detection limit with good quantum yield. R1 displayed high selectivity to Cu2+ over other interference ions with 89-fold fluorescence intensity enhancement upon the addition of 2 equiv. of Cu 2+. In addition, the turn-on fluorescent changes upon the addition of Cu2+, is also applied in cell imaging.

原文English
頁(從 - 到)375-381
頁數7
期刊Sensors and Actuators, B: Chemical
204
DOIs
出版狀態Published - 1 十二月 2014

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