Benzimidazole-based receptor for Zn 2+ recognition in a biological system: A chemosensor operated by retarding the excited state proton transfer

Min Joung Kim, Kamalpreet Kaur, Narinder Singh, Doo Ok Jang

Research output: Contribution to journalArticle

33 Citations (Scopus)


A new benzimidazole-based receptor was developed with potential functional groups for excited state proton transfer (ESPT) through keto-enol tautomerism. The enol form of the receptor selectively recognizes Zn 2+, allowing it to be used as a ratiometric fluorescence sensor in DMSO/CH 3CN (1:9, v/v). The binding event triggers a blue-shifted band through the modulation of charge transfer transitions. The sensor is applicable for recognizing Zn 2+ in the cytoplasm of Saccharomyces cerevisiae.

Original languageEnglish
Pages (from-to)5429-5433
Number of pages5
Issue number27-28
Publication statusPublished - 2012 Jul 8


All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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