Electrochemistry of Protein Electron Transfer

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Protein fold and slow relaxation times impose constraints on configurations sampled by the protein. Incomplete sampling leads to the violation of fluctuation-dissipation relations underlying the traditional theories of electron transfer. The effective reorganization energy of electron transfer is strongly reduced thus leading to lower barriers and faster rates (catalytic effect). Electrochemical kinetic measurements support low activation barriers for protein electron transfer. The distance dependence of the rate constant displays a crossover from a plateau at short distances to a long-distance exponential decay. The transition between these two regimes is controlled by the protein dynamics.

Original languageEnglish (US)
Article number067501
JournalJournal of the Electrochemical Society
Issue number6
StatePublished - Jun 2022


  • Electrode Kinetics
  • Luminescence—Electron transfer
  • Oxidation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry


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