Results 1 to 10 of about 15,116 (154)

Biofilm Biology and Engineering of Geobacter and Shewanella spp. for Energy Applications

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Geobacter and Shewanella spp. were discovered in late 1980s as dissimilatory metal-reducing microorganisms that can transfer electrons from cytoplasmic respiratory oxidation reactions to external metal-containing minerals.
Yidan Hu, Feng Li
exaly   +3 more sources

The Restorative Effects of Electron Mediators on the Formation of Electroactive Biofilms in Geobacter sulfurreducens [PDF]

open access: yesMicroorganisms
Electroactive biofilms (EABs) are essential for the performance of bioelectrochemical systems (BESs), but their formation in Geobacter, critically on conductive pili and exopolysaccharides, limits application under conditions where these components are ...
Zheng Zhuang   +3 more
doaj   +2 more sources

Wiring Up Along Electrodes for Biofilm Formation

open access: yesFrontiers in Microbiology, 2021
Millimeter-length cables of bacteria were discovered growing along a graphite-rod electrode serving as an anode of a microbial electrolysis cell (MEC).
María Belén Prados   +3 more
doaj   +1 more source

Does pre-enrichment of anodes with acetate to select for Geobacter spp. enhance performance of microbial fuel cells when switched to more complex substrates?

open access: yesFrontiers in Microbiology, 2023
Many factors affect the performance of microbial fuel cells (MFCs). Considerable attention has been given to the impact of cell configuration and materials on MFC performance.
Beate Christgen   +10 more
doaj   +1 more source

Integrative analysis of Geobacter spp. and sulfate-reducing bacteria during uranium bioremediation [PDF]

open access: yesBiogeosciences, 2012
Enhancing microbial U(VI) reduction with the addition of organic electron donors is a promising strategy for immobilizing uranium in contaminated groundwaters, but has yet to be optimized because of a poor understanding of the factors controlling the ...
D. Lovley   +3 more
doaj   +1 more source

Enhancing methane production from food waste fermentate using biochar. The added value of electrochemical testing in pre-selecting the most effective type of biochar [PDF]

open access: yes, 2017
Background: Recent studies have suggested that addition of electrically conductive biochar particles is an effective strategy to improve the methanogenic conversion of waste organic substrates, by promoting syntrophic associations between acetogenic and ...
Aulenta, Federico   +11 more
core   +2 more sources

Electrochemical Characterization of the Periplasmic PpcA c‐Cytochrome of Geobacter sulfurreducens Reveals Its Affinity for Uranium

open access: yesChemElectroChem, 2023
Geobacter bacteria produce conductive pili appendages and an outer membrane‐anchored lipopolysaccharide to immobilize uranium extracellularly. Yet, some radionuclide enters the cell envelope, where is rapidly mineralized by periplasmic c‐cytochromes.
Dr. Bhushan P. Awate   +2 more
doaj   +1 more source

Role of direct microbial electron transfer in corrosion of steels [PDF]

open access: yes, 2009
It has recently been discovered that many microbial species have the capacity to connect their metabolism to solid electrodes, directly exchanging electrons with them through membrane-bound redox compounds,nevertheless such a direct electron transfer ...
Basséguy, Régine   +3 more
core   +4 more sources

Geobacter, Anaeromyxobacter and Anaerolineae populations are enriched on anodes of root exudate-driven microbial fuel cells in rice field soil [PDF]

open access: yes, 2015
Plant-based sediment microbial fuel cells (PMFCs) couple the oxidation of root exudates in living rice plants to current production. We analysed the composition of the microbial community on anodes from PMFC with natural rice field soil as substratum for
Arends   +33 more
core   +1 more source

Mechanisms of Bacterial Extracellular Electron Exchange. [PDF]

open access: yes, 2016
The biochemical mechanisms by which microbes interact with extracellular soluble metal ions and insoluble redox-active minerals have been the focus of intense research over the last three decades. The process presents two challenges to the microorganism;
Butt, Julea N.   +5 more
core   +1 more source

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