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Related Concept Videos

Electron Transport Chains01:28

Electron Transport Chains

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The final stage of cellular respiration is oxidative phosphorylation that consists of two steps: the electron transport chain and chemiosmosis. The electron transport chain is a set of proteins found in the inner mitochondrial membrane in eukaryotic cells. Its primary function is to establish a proton gradient that can be used during chemiosmosis to produce ATP and generate electron carriers, such as NAD+ and FAD, that are used in glycolysis and the citric acid cycle.
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Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
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Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
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Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
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Quantum Rate Dynamics for Coherent Electron Transport at Material/Electrolyte Interfaces.

Paulo Roberto Bueno1

  • 1Department of Physics and Mathematics, Institute of Chemistry, São Paulo State University, Araraquara 14800-060, São Paulo, Brazil.

ACS Applied Materials & Interfaces
|February 13, 2026
PubMed
Summary

Quantum mechanics unifies nanoscale electronics and electrochemistry by revealing that electron transfer is driven by coherent quantum dynamics, not just kinetics. This finding impacts redox switches, biological processes, and supercapacitance.

Keywords:
Electrochemical CapacitanceElectron TransferElectron TransportMarcus TheoryMaterial/Electrolyte InterfacesNanoscale ElectronicsQuantum CoherenceQuantum Rate Theory

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Area of Science:

  • Interdisciplinary science bridging nanoscale electronics and electrochemistry.
  • Focuses on electron dynamics at material/electrolyte interfaces.

Background:

  • Nanoscale electronics and electrochemistry share principles of electron motion but use distinct frameworks: coherent transport vs. kinetic electron transfer.
  • Existing models lack a unified quantum-mechanical understanding.

Purpose of the Study:

  • To present quantum-mechanical principles unifying coherent electron transport and electron transfer kinetics.
  • To link quantum transport to electron-transfer rate constants in electrolytes.
  • To re-evaluate traditional electrochemical models.

Main Methods:

  • Theoretical quantum-mechanical analysis of electron motion at interfaces.
  • Modeling electron dynamics under electrolyte influence.
  • Investigating quantum states and their role in electron transfer.

Main Results:

  • Demonstrates that electron transfer, even at room temperature, is governed by coherent quantum dynamics modulated by electrolyte damping.
  • Identifies coherent transport as the driver for redox switches, biological respiration, and supercapacitance charge dynamics.
  • Establishes a method to measure electronic structure of quantum dots and graphene below radio frequencies.

Conclusions:

  • Proposes a unified quantum framework for electron dynamics in nanoscale electronics and electrochemistry.
  • Highlights the limitations of reorganization energy (λ₀) for quantifying reaction dynamics.
  • Suggests replacing reorganization energy with measurable quantum circuit parameters for a more accurate material electronic structure assessment.