Pyridoxal derived chemosensor for chromogenic sensing of Cu2+ and fluorogenic sensing of Fe3+ in semi-aqueous medium

Suban K. Sahoo, Darshna Sharma, Anuradha Moirangthem, Aman Kuba, Rini Thomas, Rajender Kumar, Anil Kuwar, Heung Jin Choi, Anupam Basu

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68 Scopus citations

Abstract

An easy-to-prepare chemosensor L was developed by condensation of pyridoxal with 1,8-diaminonaphthalene. In DMSO:H2O (1:1, v/v), sensor L displayed a highly selective and sensitive response towards Cu2+ via perceptible color and UV-vis absorbance changes among the other tested metal ions. However, the fluorescence of L is selectively quenched in the presence of both Fe3+ and Cu2+. With a micromolar detection limit and non-interference from other co-existing metal ions, this sensor can be applied over a wide pH range for the detection of Fe3+ and Cu2+. In addition, the cytotoxicity and fluorescence changes of L within live HeLa cells were examined in the absence and presence of Cu2+.

Original languageEnglish
Pages (from-to)297-303
Number of pages7
JournalJournal of Luminescence
Volume172
DOIs
StatePublished - 1 Apr 2016
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.

Funding

The authors wish to thank the Director, S.V. National Institute of Technology, Surat for providing necessary facilities and scholarship. This work was made possible by a grant from the DST SERB, New Delhi (SR/S1/IC-54/2012).

FundersFunder number
DST SERBSR/S1/IC-54/2012

    Keywords

    • Colorimetric and fluorescence sensor
    • Cu
    • Cytotoxicity
    • Fe
    • Pyridoxal derivative

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