Issue 6, 2013
From the journal:

Energy & Environmental Science

A lipid membrane intercalating conjugated oligoelectrolyte enables electrode driven succinate production in Shewanella†

Alexander W. Thomas,‡a   Logan E. Garner,‡a   Kelly P. Nevin,b   Trevor L. Woodard,b   Ashley E. Franks,bc   Derek R. Lovley,b   James J. Sumner,d   Christian J. Sundd  and  Guillermo C. Bazan*a  

* Corresponding authors

a Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
E-mail: bazan@chem.ucsb.edu

b Department of Microbiology, University of Massachusetts, 203 Morrill IV North, Amherst, Massachusetts 01003, USA

c Department of Microbiology, La Trobe University, Bundoora, Victoria 3086, Australia

d Sensors and Electron Devices Directorate, U.S. Army Research Laboratory, Adelphi, Maryland 20783, USA

Abstract

An amphiphilic conjugated oligoelectrolyte (COE) that spontaneously intercalates into lipid membranes enables Shewanella oneidensis to use a graphite electrode as the sole electron donor for succinate production. Current consumed in a poised electrochemical system by Shewanella with micromolar concentrations of COE correlates well with the succinate produced via fumarate reduction as determined by HPLC analysis. Confocal microscopy confirms incorporation of the COE into the microbes on the electrode surface. This work presents a unique strategy to induce favorable bioelectronic interactions for the production of reduced microbial metabolites.

Graphical abstract: A lipid membrane intercalating conjugated oligoelectrolyte enables electrode driven succinate production in Shewanella

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Article information

DOI
https://doi.org/10.1039/C3EE00071K
Article type
Communication
Submitted
09 Jan 2013
Accepted
02 Apr 2013
First published
03 Apr 2013

Energy Environ. Sci., 2013,6, 1761-1765

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A lipid membrane intercalating conjugated oligoelectrolyte enables electrode driven succinate production in Shewanella

A. W. Thomas, L. E. Garner, K. P. Nevin, T. L. Woodard, A. E. Franks, D. R. Lovley, J. J. Sumner, C. J. Sund and G. C. Bazan, Energy Environ. Sci., 2013, 6, 1761 DOI: 10.1039/C3EE00071K

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