Dual-functional probe based on rhodamine for sequential Cu2+ and ATP detection in vivo

Spectrochim Acta A Mol Biomol Spectrosc. 2018 Nov 5:204:657-664. doi: 10.1016/j.saa.2018.06.094. Epub 2018 Jun 30.

Abstract

A rhodamine-based fluorescent probe for Cu2+ and ATP has been designed. The fluorescence intensity/absorbance was significantly enhanced upon the addition of Cu2+ owning to the opening of the spiro-ring of rhodamine, which quickly returned to the original level due to the reconstruction of the probe by the reacting with ATP. Cu2+/ATP-induced fluorescent intensity/aborbance changes showed a good linear relationship with the concentration of Cu2+/ATP in the range of 2-20 μM/0-10 μM with a detection limit of 0.1 μM/1.0 μM. The proposed method is simple in design and fast in operation, and is suitable for the reversible monitoring of Cu2+ and ATP in bioanalytical applications.

Keywords: ATP; Bioimaging; Cu(2+); Fluorescence; Rhodamine.

MeSH terms

  • Adenosine Triphosphate / analysis*
  • Animals
  • Copper / analysis*
  • Fluorescent Dyes / chemistry*
  • Limit of Detection
  • Linear Models
  • Mice
  • Mice, Nude
  • Optical Imaging
  • Reproducibility of Results
  • Rhodamines / chemistry*
  • Spectrometry, Fluorescence
  • Water Pollutants, Chemical / analysis

Substances

  • Fluorescent Dyes
  • Rhodamines
  • Water Pollutants, Chemical
  • Copper
  • Adenosine Triphosphate