Exploration research on synthesis and application of a new dye containing di-2-picolyamine

Spectrochim Acta A Mol Biomol Spectrosc. 2018 May 5:196:256-261. doi: 10.1016/j.saa.2018.02.023. Epub 2018 Feb 9.

Abstract

A newly designed fluorescence dye L based on di-2-picolyamine (DPA) moiety as a chelator was obtained under the protection of N2 at 120°C, and KI as catalyst with relatively better yield. More interestingly, L not only could selectively and sensitively detect Cu2+ ions in aqueous medium but also examine the Cu2+ ions of the actual water samples. Nevertheless, L could be visual in Hela cells with excellent cell permeability, viz, monitoring exogenous Cu2+ ions as well as realizing an "on-off-on" process.

Keywords: Bio-imaging; Fluorescence; di-2-picolyamine.

MeSH terms

  • Amines / chemistry*
  • Copper / analysis
  • Fluorescent Dyes / chemical synthesis*
  • Fluorescent Dyes / chemistry*
  • HeLa Cells
  • Humans
  • Microscopy, Fluorescence
  • Picolinic Acids / chemistry*
  • Sensitivity and Specificity

Substances

  • 2,2'-dipicolylamine
  • Amines
  • Fluorescent Dyes
  • Picolinic Acids
  • Copper