Tissue Imaging of Glutathione-Specific Naphthalimide-Cyanine Dye with Two-Photon and Near-Infrared Manners

Anal Chem. 2019 Sep 3;91(17):11343-11348. doi: 10.1021/acs.analchem.9b02458. Epub 2019 Aug 19.

Abstract

Molecular probes suitable for different fluorescence imaging technologies can meet the requirements of different scientific research in biological applications. In this work, a naphthalimide-cyanine-based sulfonamide was used to specifically visualize the glutathione of mouse tissues with a two-photon manner for the naphthalimide moiety and a near-infrared manner for the cyanine moiety, respectively. The results showed that this probe served as a dual-model tissue-imaging agent for visualization of glutathione with around 200 μm imaging depth in a two-photon manner and 120 μm imaging depth in a near-infrared manner, which provided a model for tissue imaging in the visible and near-infrared channels.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Carbocyanines / chemistry
  • Glutathione / analysis*
  • Humans
  • Infrared Rays
  • Mice
  • Molecular Imaging / methods*
  • Molecular Probes / chemistry*
  • Naphthalimides / chemistry
  • Photons
  • Sulfonamides / chemistry

Substances

  • Carbocyanines
  • Molecular Probes
  • Naphthalimides
  • Sulfonamides
  • Glutathione