New fluorescent and colorimetric chemosensors bearing rhodamine and binaphthyl groups for the detection of Cu2+

Xiaoqiang Chen, Min Jung Jou, Hanyoung Lee, Songzi Kou, Jeesun Lim, Seong Won Nam, Sungsu Park, Kwan Mook Kim, Juyoung Yoon

Research output: Contribution to journalArticlepeer-review

153 Scopus citations

Abstract

New rhodamine derivatives bearing binaphthyl group were synthesized as selective fluorescent and colorimetric sensors for Cu2+. Highly selective "off-on" type fluorescent changes were observed upon the addition of Cu2+. Selective fluorescent enhancement of two rhodamine derivatives was attributed to ring opening from the spirolactam (nonfluorescent) to ring-opened amide (fluorescent). A chemo-sensing based on rhodamine derivative was further applied to the microfluidic system.

Original languageEnglish
Pages (from-to)597-602
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume137
Issue number2
DOIs
StatePublished - 2 Apr 2009

Keywords

  • Binaphthyl group
  • Colorimetric sensor
  • Copper ion sensor
  • Fluorescent sensor
  • Microfluidic system
  • Rhodamine

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