@article {3113,
	title = {Correlation between microbial community and granule conductivity in anaerobic bioreactors for brewery wastewater treatment.},
	journal = {Bioresour Technol},
	volume = {174},
	year = {2014},
	month = {2014 Dec},
	pages = {306-10},
	abstract = {<p>Prior investigation of an upflow anaerobic sludge blanket (UASB) reactor treating brewery wastes suggested that direct interspecies electron transfer (DIET) significantly contributed to interspecies electron transfer to methanogens. To investigate DIET in granules further, the electrical conductivity and bacterial community composition of granules in fourteen samples from four different UASB reactors treating brewery wastes were investigated. All of the UASB granules were electrically conductive whereas control granules from ANAMMOX (ANaerobic AMMonium OXidation) reactors and microbial granules from an aerobic bioreactor designed for phosphate removal were not. There was a moderate correlation (r=0.67) between the abundance of Geobacter species in the UASB granules and granule conductivity, suggesting that Geobacter contributed to granule conductivity. These results, coupled with previous studies, which have demonstrated that Geobacter species can donate electrons to methanogens that are typically predominant in anaerobic digesters, suggest that DIET may be a widespread phenomenon in UASB reactors treating brewery wastes.</p>},
	keywords = {Alcoholic Beverages, Anaerobiosis, Bacteria, Bioreactors, Electric Conductivity, Ethanol, Sequence Analysis, DNA, Sewage, Waste Disposal, Fluid, Wastewater, Water Purification},
	issn = {1873-2976},
	doi = {10.1016/j.biortech.2014.10.004},
	author = {Shrestha, Pravin Malla and Malvankar, Nikhil S and Werner, Jeffrey J and Franks, Ashley E and Elena-Rotaru, Amelia and Shrestha, Minita and Liu, Fanghua and Nevin, Kelly P and Angenent, Largus T and Lovley, Derek R}
}
@article {414,
	title = {Supercapacitors based on c-type cytochromes using conductive nanostructured networks of living bacteria.},
	journal = {Chemphyschem},
	volume = {13},
	year = {2012},
	month = {2012 Feb},
	pages = {463-8},
	abstract = {Supercapacitors have attracted interest in energy storage because they have the potential to complement or replace batteries. Here, we report that c-type cytochromes, naturally immersed in a living, electrically conductive microbial biofilm, greatly enhance the device capacitance by over two orders of magnitude. We employ genetic engineering, protein unfolding and Nernstian modeling for in vivo demonstration of charge storage capacity of c-type cytochromes and perform electrochemical impedance spectroscopy, cyclic voltammetry and charge-discharge cycling to confirm the pseudocapacitive, redox nature of biofilm capacitance. The biofilms also show low self-discharge and good charge/discharge reversibility. The superior electrochemical performance of the biofilm is related to its high abundance of cytochromes, providing large electron storage capacity, its nanostructured network with metallic-like conductivity, and its porous architecture with hydrous nature, offering prospects for future low cost and environmentally sustainable energy storage devices.},
	keywords = {Bacteria, Biofilms, Cytochrome c Group, Dielectric Spectroscopy, Electric Capacitance, Electrodes, Geobacter, Nanostructures, Oxidation-Reduction},
	issn = {1439-7641},
	doi = {10.1002/cphc.201100865},
	author = {Malvankar, Nikhil S and Mester, T{\"u}nde and Tuominen, Mark T and Lovley, Derek R}
}
