BES refers to processes that involve electrode reactions catalyzed by microorganisms. Examples include microbially catalyzed oxidation of organic matter at anodes of microbial fuel cells (MFC) and microbial electrolytic cells (MEC); and microbially catalyzed reduction of photosynthetically generated oxygen in microbial solar cells (MSC). Research in BES at CBMSE spans fundamental studies aimed at elucidation of extracellular electron transfer processes through application of electrochemistry, microbiology, molecular biology (e.g., metagenomics, metatranscriptomics, metaproteomics), and microscopy; to engineering and field testing of prototype devices. Potential applications of BES targeted by CBMSE include energy harvesting in marine environments to persistently power remotely deployed oceanographic sensors, energy efficient wastewater treatment, bioremediation, biological engineering at the cell/electrode interface, and electrosynthesis of liquid fuel from carbon dioxide.

Selected Publications

L. M. Tender and et al., The first demonstration of a microbial fuel cell as a viable power supply: Powering a meteorological buoy, J Power Sources, vol. 179, no. 2, pp. 571-575, 2008.
S. Malik and et al., A self-assembling self-repairing microbial photoelectrochemical solar cell, Energy & Environmental Science, vol. 2, no. 3, pp. 292-298, 2009.
H. Richter and et al., Cyclic voltammetry of biofilms of wild type and mutant Geobacter sulfurreducens on fuel cell anodes indicates possible roles of OmcB, OmcZ, type IV pili, and protons in extracellular electron transfer, Energy & Environmental Science, vol. 2, no. 5, pp. 506-516, 2009.
S. M. Strvcharz-Glaven and et al., Application of cyclic voltammetry to investigate enhanced catalytic current generation by biofilm-modified anodes of Geobacter sulfurreducens strain DL1 vs. variant strain KN400, Energy Environ. Sci., vol. 4, no. 3, pp. 896-913, 2011.
L. M. Tender, From mud to microbial electrode catalysts and conductive nanomaterials, MRS Bull, vol. 36, no. 10, pp. 800-805, 2011.
S. M. Strvcharz-Glaven and Tender, L. M., Study of the mechanism of catalytic activity of G. sulfurreducens biofilm anodes during biofilm growth, ChemSusChem, vol. 5, no. 6, pp. 1106-1118, 2012.
D. R. Bond, Strvcharz-Glaven, S. M., Tender, L. M., and Torres, C. I., On electron transport through Geobacter biofilms, ChemSusChem, vol. 5, no. 6, pp. 1099-1105, 2012.
R. M. Snider, Strvcharz-Glaven, S. M., Tsoi, S. D., Erickson, J. S., and Torres, C. I., Long-range electron transport in Geobacter sulfurreducens biofilms is redox gradient-driven, Proceedings of the National Academy of Sciences, vol. 109, no. 38, pp. 15467-15472, 2012.