Results 41 to 50 of about 6,826 (194)

Localization and Solubilization of the Iron(III) Reductase of Geobacter sulfurreducens [PDF]

open access: yesApplied and Environmental Microbiology, 1998
ABSTRACT The iron(III) reductase activity of Geobacter sulfurreducens was determined with the electron donor NADH and the artificial electron donor horse heart cytochrome c . The highest reduction rates were obtained with Fe(III) complexed by nitrilotriacetic acid as an electron ...
Gaspard S, Vazquez F, Holliger C
openaire   +3 more sources

The relay network of Geobacter biofilms [PDF]

open access: yes, 2018
While actual models explaining electron conduction in electricity producing biofilms have evolved separately to apparent irreconcilable conceptual positions, finding cytochrome complexes in the external matrix of Geobacter biofilms supports the proposal ...
Busalmen, Juan Pablo   +3 more
core   +1 more source

Biochemical Capacitance of Geobacter Sulfurreducens Biofilms

open access: yesChemSusChem, 2015
AbstractAn electrical model able to decouple the electron pathway from microbial cell machinery impedance terms is introduced. In this context, capacitance characteristics of the biofilm are clearly resolved. In other words, the model allows separating, according to the advantage of frequency and spectroscopic response approach, the different terms ...
Bueno, Paulo R.   +4 more
openaire   +4 more sources

Anode potential influences the structure and function of anodic electrode and electrolyte-associated microbiomes [PDF]

open access: yes, 2016
Three bioelectrochemical systems were operated with set anode potentials of +300 mV, +550 mV and +800 mV vs. Standard Hydrogen Electrode (SHE) to test the hypothesis that anode potential influences microbial diversity and is positively associated with ...
Dennis, Paul G   +6 more
core   +2 more sources

Recent Origin of the Methacrylate Redox System in Geobacter sulfurreducens AM-1 through Horizontal Gene Transfer.

open access: yesPLoS ONE, 2015
The origin and evolution of novel biochemical functions remains one of the key questions in molecular evolution. We study recently emerged methacrylate reductase function that is thought to have emerged in the last century and reported in Geobacter ...
Oksana V Arkhipova   +6 more
doaj   +1 more source

Geobacter sulfurreducens electroactive biofilms on Fe2O3/FTO support-electrodes for developing a sodium acetate electrochemical biosensor

open access: yesBiosensors and Bioelectronics: X, 2023
Geobacter sulfurreducens is an essential microorganism in biogeochemical cycles. It is used biotechnologically in bioremediation and electricity production. The importance of G.
G.A. Huerta-Miranda   +6 more
doaj   +1 more source

DSA to grow electrochemically active biofilms of Geobacter sulfurreducens [PDF]

open access: yes, 2007
Biofilms of Geobacter sulfurreducens were grown on graphite and on dimensionally stable anodes (DSA) in medium that did not contain any soluble electron acceptor.
Aelterman   +42 more
core   +4 more sources

Geobacter Protein Nanowires

open access: yesFrontiers in Microbiology, 2019
The study of electrically conductive protein nanowires in Geobacter sulfurreducens has led to new concepts for long-range extracellular electron transport, as well as for the development of sustainable conductive materials and electronic devices with ...
Derek R. Lovley, David J. F. Walker
doaj   +1 more source

Ultra microelectrodes increase the current density provided by electroactive biofilms by improving their electron transport ability [PDF]

open access: yes, 2012
Electroactive biofilms were formed from garden compost leachate on platinum wires under constant polarisation at -0.2 V vs. SCE and temperature controlled at 40 C.
Alain Bergel   +48 more
core   +2 more sources

Proteome of Geobacter sulfurreducens in the presence of U(VI)

open access: yesMicrobiology, 2014
Geobacter species often play an important role in the in situ bioremediation of uranium-contaminated groundwater, but little is known about how these microbes avoid uranium toxicity. To evaluate this further, the proteome of Geobacter sulfurreducens exposed to 100 µM U(VI) acetate was compared to control cells not exposed to U(VI ...
Roberto, Orellana   +6 more
openaire   +2 more sources

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