Naked-eye fluorescent sensor for Cu(II) based on indole conjugate BODIPY dye

Tumay S. O., Okutan E., Sengul I. F., Ozcan E., Kandemir H., Doruk T., ...Daha Fazla

POLYHEDRON, cilt.117, ss.161-171, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 117
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.poly.2016.05.056
  • Dergi Adı: POLYHEDRON
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Index Chemicus (IC)
  • Sayfa Sayıları: ss.161-171
  • Atatürk Üniversitesi Adresli: Hayır

Özet

A novel on/off fluorescent indole/BODIPY-based Cu2+ chemosensor (3) was synthesized by Knoevenagel condensation of BODIPY derivative 1 with 2-methyl-indole-3-carbaldehyde 2. The identity of compound 3 was confirmed by H-1 NMR, C-13 NMR, FT-IR, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and single crystal X-ray diffraction techniques. Fluorescent chemosensor (3) is found to be highly selective and sensitive for detection of Cu2+ with a color change from purple to yellow. The optical sensor features for the Cu2+ complex of 3 were investigated by UV-Vis and fluorescence spectroscopy. The addition of Cu2+ caused quenching of fluorescence intensity and the detection limit was calculated to be 0.124 mu M. Also, the stoichiometry ratio of 3+Cu2+ was obtained 2:1 by Job's plot. Live cell image, flow cytometry and cytotoxic properties of compound 3 were examined. (C) 2016 Elsevier Ltd. All rights reserved.