New aminobenzopyranoxanthene-based colorimetric sensor for copper(II) ions with dual-color signal detection system

Yoshinao Shirasaki, Shinichiro Kamino, Masaru Tanioka, Keiko Watanabe, Yasuo Takeuchi, Seiji Komeda, Shuichi Enomoto

Research output: Contribution to journalArticle

15 Citations (Scopus)


One molecule, three faces: A new aminobenzopyranoxanthene (ABPX)-based colorimetric sensor allows determination of changes in Cu2+ concentration by spectrophotometry and the naked eye. This quantitative, colorful, and simple method takes advantage of the unique protolytic reaction of ABPX in response to Cu2+.

Original languageEnglish
Pages (from-to)2609-2613
Number of pages5
JournalChemistry - An Asian Journal
Issue number11
Publication statusPublished - Nov 1 2013



  • copper
  • dyes/pigments
  • sensors

ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry

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