A fluorescence turn-on and colorimetric probe based on a diketopyrrolopyrrole-tellurophene conjugate for efficient detection of hydrogen peroxide and glutathione

Matinder Kaur, Da Seul Yang, Kihang Choi, Min Ju Cho, Dong Hoon Choi

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

A reversible probe based on diketopyrrolopyrrole-tellurophene conjugate for the detection of reactive oxygen species has been designed and synthesized. The probe utilizes the redox properties of the tellurium atom for the detection of reactive oxygen species and exhibits high selectivity and sensitivity towards H2O2; the presence of which is demonstrated by a fluorescent signal. In addition to fluorescence signal, the probe displayed a color change from light blue to light purple upon oxidation by H 2O2 in aqueous media. The generated tellurophene-1-oxide may be quickly reduced by glutathione to regenerate the original diketopyrrolopyrrole-tellurophene conjugate. The probe can be applied to monitor the concentration of H2O2 in aqueous solution over an approximate pH range 3.8-8.0.

Original languageEnglish
Pages (from-to)118-126
Number of pages9
JournalDyes and Pigments
Volume100
Issue number1
DOIs
Publication statusPublished - 2014

Keywords

  • Colorimetric sensor
  • Diketopyrrolopyrrole
  • Fluorescent chemosensor
  • Glutathione
  • Hydrogen peroxide
  • Tellurophene

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Process Chemistry and Technology

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