Induction of a Proton Gradient across a Gold-Supported Biomimetic Membrane by Electroenzymatic H2 Oxidation

Óscar Gutiérrez-Sanz, Cristina Tapia, Marta C. Marques, Sonia Zacarias, Marisela Vélez, Ines Antunes Pereira, Antonio L. De Lacey

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Energy-transduction mechanisms in living organisms, such as photosynthesis and respiration, store light and chemical energy in the form of an electrochemical gradient created across a lipid bilayer. Herein we show that the proton concentration at an electrode/phospholipid-bilayer interface can be controlled and monitored electrochemically by immobilizing a membrane-bound hydrogenase. Thus, the energy derived from the electroenzymatic oxidation of H2 can be used to generate a proton gradient across the supported biomimetic membrane.

Original languageEnglish
JournalAngewandte Chemie-International Edition
DOIs
Publication statusAccepted/In press - 2015

Keywords

  • Enzymatic electrodes
  • Hydrogen
  • Hydrogenase
  • Phospholipids
  • Proton gradients

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