Exoelectrogenic bacteria that power microbial fuel cells

Bruce E. Logan

Research output: Contribution to journalArticlepeer-review

1795 Scopus citations


There has been an increase in recent years in the number of reports of microorganisms that can generate electrical current in microbial fuel cells. Although many new strains have been identified, few strains individually produce power densities as high as strains from mixed communities. Enriched anodic biofilms have generated power densities as high as 6.9 W per m2 (projected anode area), and therefore are approaching theoretical limits. To understand bacterial versatility in mechanisms used for current generation, this Progress article explores the underlying reasons for exocellular electron transfer, including cellular respiration and possible cell-cell communication.
Original languageEnglish (US)
Pages (from-to)375-381
Number of pages7
JournalNature Reviews Microbiology
Issue number5
StatePublished - Mar 30 2009
Externally publishedYes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: I thank J. M. Regan for valuable comments and discussion, and the Air Force Office of Scientific Research and the KAUST (King Abdullah University of Science and Technology) Global Research Partnership for their support.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.


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