Abstract
Multiwalled carbon nanotubes grown on gold electrodes manufactured by microtechnology techniques have been used as a platform for oriented and stable immobilization of a Ni-Fe hydrogenase. Microscopic and electrochemical characterization of the system are presented. High-density currents due to H2 oxidation electrocatalysis, stable for over a month under continuous operational conditions, were measured. The functional properties of this nanostructured hydrogenase electrode are suitable for hydrogen biosensing and biofuel applications.
Publication types
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Evaluation Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Adsorption
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Crystallization / methods*
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Electrochemistry / instrumentation
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Electrochemistry / methods*
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Hydrogen / chemistry*
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Hydrogenase / chemistry*
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Hydrogenase / ultrastructure
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Macromolecular Substances / chemistry
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Materials Testing
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Microelectrodes*
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Molecular Conformation
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Nanotechnology / instrumentation
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Nanotechnology / methods*
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Nanotubes, Carbon / chemistry*
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Nanotubes, Carbon / ultrastructure
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Oxidation-Reduction
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Particle Size
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Protein Binding
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Surface Properties
Substances
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Macromolecular Substances
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Nanotubes, Carbon
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Hydrogen
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Hydrogenase