Results 21 to 30 of about 5,820 (153)

Generation of High Current Densities in Geobacter sulfurreducens Lacking the Putative Gene for the PilB Pilus Assembly Motor

Microbiology Spectrum, 2021
Geobacter sulfurreducens is commonly employed as a model for the study of extracellular electron transport mechanisms in the Geobacter species. Deletion of pilB, which is known to encode the pilus assembly motor protein for type IV pili in other bacteria,
Toshiyuki Ueki, David J. F. Walker, Kelly P. Nevin, Joy E. Ward, Trevor L. Woodard, Stephen S. Nonnenmann, Derek R. Lovley   +6 more
doaj   +1 more source

Synthesis of Palladium Nanoparticles by Electrode-Respiring Geobacter sulfurreducens Biofilms [PDF]

, 2023
The electroactive microorganism Geobacter sulfurreducens can couple organic electron donor oxidation to the respiration of electrode surfaces, colonizing them in the process.
Marko, Chavez, Magdalene, MacLean, Mohamed, El-Naggar   +2 more
core   +1 more source

A microfluidic study of the kinetics of bio-electrochemical oxidation of acetate by a Geobacter sulfurreducens biofilm [PDF]

, 2023
This work addresses the need for kinetic studies to better understand the mechanisms that are responsible for the outputs from flow-based bioelectrochemical systems (BES).
Manon, Couture, Jesse, Greener, Nastaran , Khodaparastasgarabad   +2 more
core   +2 more sources

Theoretical characterisation of electron tunnelling from granular activated carbon to electron accepting organisms in direct interspecies electron transfer

Scientific Reports, 2022
Direct interspecies electron transfer (DIET) has been identified as an efficient metabolism between symbiotically interacting organisms. One method of DIET uses conductive materials (e.g., granular activated carbon (GAC)) as a medium to shuttle electrons
Rohan Rao, Jing Hu, Po-Heng Lee
doaj   +1 more source

Transcriptomic, Proteomic, and Bioelectrochemical Characterization of an Exoelectrogen Geobacter soli Grown With Different Electron Acceptors

Frontiers in Microbiology, 2018
The ability of Geobacter species to transfer electrons outside cells enables them to play an important role in biogeochemical and bioenergy processes.
Xixi Cai, Lingyan Huang, Guiqin Yang, Zhen Yu, Junlin Wen, Shungui Zhou   +5 more
doaj   +1 more source

Effect of Geobacter sulfurreducens on the microbial corrosion of mild steel, ferritic and austenitic stainless steels [PDF]

, 2009
The influence of Geobacter sulfurreducens was tested on the anaerobic corrosion of four different steels: mild steel 1145, ferritic steel 403 and austenitic steels 304L and 316L.
Basséguy, Régine, Délia, Marie-Line, Mehanna, Maha, Bergel, Alain   +3 more
core   +1 more source

Genetic identification of a PilT motor in Geobacter sulfurreducens reveals a role for pilus retraction in extracellular electron transfer

Frontiers in Microbiology, 2016
The metal-reducing bacterium Geobacter sulfurreducens requires the expression of conductive pili to reduce iron oxides and to wire electroactive biofilms, but the role of pilus retraction in these functions has remained elusive.
Allison Speers, Bryan D Schindler, Bryan D Schindler, Jihwan Hwang, Jihwan Hwang, Aycin Genc, Aycin Genc, Gemma Reguera   +7 more
doaj   +1 more source

Aromatic Amino Acids Required for Pili Conductivity and Long-Range Extracellular Electron Transport in Geobacter sulfurreducens

mBio, 2013
It has been proposed that Geobacter sulfurreducens requires conductive pili for long-range electron transport to Fe(III) oxides and for high-density current production in microbial fuel cells. In order to investigate this further, we constructed a strain
Madeline Vargas, Nikhil S. Malvankar, Pier-Luc Tremblay, Ching Leang, Jessica A. Smith, Pranav Patel, Oona Synoeyenbos-West, Kelly P. Nevin, Derek R. Lovley   +8 more
doaj   +1 more source

Effect of surface roughness, biofilm coverage and biofilm structure on the electrochemical efficiency of microbial cathodes [PDF]

, 2011
Biofilms of Geobacter sulfurreducens were formed under chronoamperometry at −0.5 V and −0.6 V vs. Ag/AgCl on stainless steel cathodes and tested for fumarate reduction.
A. Bergel, L. Pons, Délia, Marie-Line, Bergel, Alain, M.-L. Délia, Pons, Liz   +5 more
core   +1 more source

Microbial Communities and Electrochemical Performance of Titanium-Based Anodic Electrodes in a Microbial Fuel Cell [PDF]

, 2011
Four types of titanium (Ti)-based electrodes were tested in the same microbial fuel cell (MFC) anodic compartment. Their electrochemical performances and the dominant microbial communities of the electrode biofilms were compared.
Heijne, Annemiek ter,, Hamelers, Hubertus V.M.,, Stams, Alfons J.M.,, Michaelidou, Urania,, ter Heijne, A., Euverink, Gerrit Jan W.,, Euverink, G., Hamelers, H., Urania Michaelidou, Heijne, A., ter, Euverink, G.J.W., Hamelers, H.V.M., Michaelidou, U., Geelhoed, Jeanine S.,, Geelhoed, J.S., Alfons J. M. Stams, Geelhoed, J., Annemiek ter Heijne, Stams, A.J.M., Stams, A., Gerrit Jan W. Euverink, Hubertus V. M. Hamelers, Jeanine S. Geelhoed   +22 more
core   +1 more source