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

Journal Article · Sat Jun 01 00:00:00 EDT 2013 · Energy & Environmental Science

DOI:https://doi.org/10.1039/c3ee00071k· OSTI ID:1211253

Thomas, AW; Garner, LE; Nevin, KP; Woodard, TL; Franks, AE; Lovley, DR; Sumner, JJ; Sund, CJ; Bazan, GC

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 bio-electronic interactions for the production of reduced microbial metabolites.

• Sponsoring Organization: USDOE Advanced Research Projects Agency - Energy (ARPA-E)
• DOE Contract Number: DE-AR0000159
• OSTI ID: 1211253
• Journal Information: Energy & Environmental Science, Vol. 6, Issue 6; ISSN 1754-5692
• Country of Publication: United States
• Language: English