Linking Single-Molecule Blinking to Chromophore Structure and Redox Potentials

Stein, I. H., Capone, S., Smit, J. H., Baumann, F., Cordes, T. & Tinnefeld, P., Mar-2012, In : Chemphyschem. 13, 4, p. 931-937 7 p.

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  • Ingo H. Stein
  • Stella Capone
  • Jochem H. Smit
  • Fabian Baumann
  • Thorben Cordes
  • Philip Tinnefeld

Intensity fluctuations between an ON-state and an OFF-state, also called blinking, are common to all luminescent objects when studied at the level of individuals. We studied blinking of three dyes from a homologous series (Cy3, Cy5, Cy7). The underlying radical anion states were induced by removing oxidants (i.e. oxygen) and by adding the reductant ascorbic acid. We find that for different conditions with distinct levels of oxidants in solution the OFF-state lifetime always increases in the order Cy3

Original languageEnglish
Pages (from-to)931-937
Number of pages7
Issue number4
Publication statusPublished - Mar-2012


  • dyes, pigments, fluorescence spectroscopy, photophysics, single-molecule studies, super-resolution microscopy, GROUND-STATE-DEPLETION, SUPERRESOLUTION MICROSCOPY, FLUORESCENCE NANOSCOPY, SYSTEM, PROBES, DYES, FLUOROPHORES, SPECTROSCOPY, ELECTRON, OXYGEN

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