Thiazole sulfonamide based ratiometric fluorescent chemosensor with a large spectral shift for zinc sensing

Aasif Helal, Sang Hyun Kim, Hong Seok Kim*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

A new thiazole sulfonamide (TTP, 1) based Zn2+ selective intrinsic chemosensor has been synthesized and investigated. The chemosensor shows a selective fluorescence enhancement (3.0 fold) with Zn2+ over biologically relevant cations (Ca2+, Mg2+, Na+, and K+) and biologically non-relevant cations (Cd2+) in an aqueous ethanol system. It produces an increase in the quantum yield and a longer emission wavelength shift (64 nm) on Zn2+ binding with the potential of a ratiometric assay.

Original languageEnglish
Pages (from-to)9925-9932
Number of pages8
JournalTetrahedron
Volume66
Issue number52
DOIs
StatePublished - 24 Dec 2010
Externally publishedYes

Bibliographical note

Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), and funded by the Ministry of Education, Science and Technology ( 20100010070 ). A.H. was also supported by the Research Institute of Industrial Technology at Kyungpook National University.

Keywords

  • Chemosensor
  • ESIPT
  • Fluorescence
  • Ratiometric sensing of Zn
  • Thiazole sulfonamide

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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