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Keywords:

  • DNA;
  • fluorescence probes;
  • G-Quadruplex;
  • guanine

Abstract

Thumbnail image of graphical abstract

Lighting up: A G-quadruplex-specific fluorescent probe was designed combining the specificity of the pyridodicarboxamide motif for guanine quadruplexes and the fluorescence properties of thiazole orange. While the assembly of the two partners through a flexible linker leads to a nonselective probe, merging them in a single, rigid scaffold leads to a dye that elicits the properties required for G-quadruplex sensing.