Issue 18, 2014

A new multifunctional Schiff base as a fluorescence sensor for Al3+ and a colorimetric sensor for CN in aqueous media: an application to bioimaging

Abstract

A multifunctional fluorescent and colorimetric receptor 1 ((E)-N′-((8-hydroxy-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinolin-9-yl)methylene)benzohydrazide) for the detection of both Al3+ and CN in aqueous solution has been developed. Receptor 1 exhibited an excellent selective fluorescence response toward Al3+. The sensitivity of the fluorescent based assay (0.193 μM) for Al3+ is far below the limit in the World Health Organization (WHO) guidelines for drinking water (7.41 μM). In addition, receptor 1 showed an excellent detection ability in a wide pH range of 4–10 and also in living cells. Moreover, receptor 1 showed a highly selective colorimetric response to CN by changing its color from colorless to yellow immediately without any interference from other anions.

Graphical abstract: A new multifunctional Schiff base as a fluorescence sensor for Al3+ and a colorimetric sensor for CN− in aqueous media: an application to bioimaging

Supplementary files

Article information

Article type
Paper
Submitted
04 Feb 2014
Accepted
14 Feb 2014
First published
13 Mar 2014

Dalton Trans., 2014,43, 6650-6659

Author version available

A new multifunctional Schiff base as a fluorescence sensor for Al3+ and a colorimetric sensor for CN in aqueous media: an application to bioimaging

S. A. Lee, G. R. You, Y. W. Choi, H. Y. Jo, A. R. Kim, I. Noh, S. Kim, Y. Kim and C. Kim, Dalton Trans., 2014, 43, 6650 DOI: 10.1039/C4DT00361F

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