A novel dicyanoisophorone based red-emitting fluorescent probe with a large Stokes shift for detection of hydrazine in solution and living cells

Spectrochim Acta A Mol Biomol Spectrosc. 2018 May 5:196:160-167. doi: 10.1016/j.saa.2018.02.026. Epub 2018 Feb 8.

Abstract

A novel dicyanoisophorone based fluorescent probe HP was developed to detect hydrazine. Upon the addition of hydrazine, probe HP displayed turn-on fluorescence in the red region with a large Stokes shift (180nm). This probe exhibited high selectivity and high sensitivity to hydrazine in solution. The detection limit of HP was found to be 3.26ppb, which was lower than the threshold limit value set by USEPA (10ppb). Moreover, the probe was successfully applied to detect hydrazine in different water samples and living cells.

Keywords: Cell imaging; Fluorescent probe; Hydrazine; Large Stokes shift; Red emission.

MeSH terms

  • Cyclohexanones / chemistry
  • Cytological Techniques / methods*
  • Dimethyl Sulfoxide
  • Drug Stability
  • Fluorescent Dyes / chemistry*
  • HeLa Cells
  • Humans
  • Hydrazines / analysis*
  • Hydrazines / metabolism
  • Hydrogen-Ion Concentration
  • Isocyanates / chemistry*
  • Microscopy, Confocal
  • Microscopy, Fluorescence

Substances

  • Cyclohexanones
  • Fluorescent Dyes
  • Hydrazines
  • Isocyanates
  • hydrazine
  • isophorone
  • isophorone diisocyanate
  • Dimethyl Sulfoxide