A highly selective fluorescent sensor for the detection of Al3+ and CN- in aqueous solution: biological applications and DFT calculations

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A new "turn-on fluorescence type'' chemosensor 1 (N'1,N'2-bis((E)-2-hydroxybenzylidene)oxalohydrazide) with a simple structure was devised and synthesized. In aqueous solution, receptor 1 could efficiently detect both Al3+ and CN- at two different wavelengths. The limit of detection for Al3+ (2.0 mu M) is below the World Health Organization (WHO) guideline for drinking water (7.41 mu M). To utilize for practical and biological applications, the ability of 1 for monitoring Al3+ was tested in real water samples and living cells. In addition, 1 showed a highly selective fluorescence enhancement for CN- in the presence of other anions without any interference. The sensing mechanisms of 1 for Al3+ and CN- were supported by theoretical calculations.
Publisher
ROYAL SOC CHEMISTRY
Issue Date
2016-10
Language
English
Article Type
Article
Citation

NEW JOURNAL OF CHEMISTRY, v.40, no.10, pp.8918 - 8927

ISSN
1144-0546
DOI
10.1039/c6nj01544a
URI
http://hdl.handle.net/10203/240277
Appears in Collection
CH-Journal Papers(저널논문)
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