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PublicationANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Year2015
Volume54 (9)
Pages2684-2687
International

Induction of a Proton Gradient across a Gold-Supported Biomimetic Membrane by Electroenzymatic H-2 Oxidation

Authors:Gutiérrez-Sanz, Oscar, Cristina Tapia García, Marta C. Marques , Marisela Vélez Tirado, Ines A. C. Pereira , Antonio López de Lacey
Groups of research:BioElectroCatalysis
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 H-2 can be used to generate a proton gradient across the supported biomimetic membrane.
Keywords:Hydrogenase, hydrogen, enzymatic electrodes, phospholipids, proton gradients
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