Enzymatic bioreactor for simultaneous electrosynthesis and energy production

Abstract : The proof-of-concept for enzymatic electrosynthesis with simultaneous energy production has been demonstrated by using the regioselective conversion of D-sorbitol to D-fructose by D-sorbitol dehydrogenase as a model reaction. The bioreactor was composed of two electrodes, a carbon felt bioanode modified by multi-walled carbon nanotubes (MWCNT) containing D-sorbitol dehydrogenase immobilized in a silica matrix and an oxygen gas-flow cathode. The electrochemical regeneration of the NAD+ cofactor at the bioanode was achieved by using a poly(methylene green) mediator electrodeposited on the carbon felt/MWCNT electrode. The conversion rate was 1.18 mg day−1 cm−3 and an energy power output up to 14.6 μW cm−3 at 0.1 V was reached.
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https://hal.univ-lorraine.fr/hal-01924811
Contributor : Francois Lapicque <>
Submitted on : Friday, November 16, 2018 - 11:59:33 AM
Last modification on : Monday, August 12, 2019 - 1:38:02 PM

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Ievgen Mazurenko, Mathieu Etienne, Gert-Wieland Kohring, François Lapicque, Alain Walcarius. Enzymatic bioreactor for simultaneous electrosynthesis and energy production. Electrochimica Acta, Elsevier, 2016, 199, pp.342 - 348. ⟨10.1016/j.electacta.2016.02.126⟩. ⟨hal-01924811⟩

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