Gradients and consequences of heterogeneity in biofilms

J Jo, A Price-Whelan, LEP Dietrich - Nature Reviews Microbiology, 2022 - nature.com
Historically, appreciation for the roles of resource gradients in biology has fluctuated
inversely to the popularity of genetic mechanisms. Nevertheless, in microbiology specifically …

Beneficial applications of biofilms

LA Philipp, K Bühler, R Ulber, J Gescher - Nature Reviews Microbiology, 2023 - nature.com
Many microorganisms live in the form of a biofilm. Although they are feared in the medical
sector, biofilms that are composed of non-pathogenic organisms can be highly beneficial in …

Anode potentials regulate Geobacter biofilms: new insights from the composition and spatial structure of extracellular polymeric substances

G Yang, L Huang, Z Yu, X Liu, S Chen, J Zeng, S Zhou… - Water research, 2019 - Elsevier
The extracellular electron transfer (EET) efficiency in bioelectrochemical systems has been
proven to be dependent on anode potentials. To explore the underlying mechanism …

[HTML][HTML] Mechanistic stratification in electroactive biofilms of Geobacter sulfurreducens mediated by pilus nanowires

RJ Steidl, S Lampa-Pastirk, G Reguera - Nature Communications, 2016 - nature.com
Electricity generation by Geobacter sulfurreducens biofilms grown on electrodes involves
matrix-associated electron carriers, such as c-type cytochromes. Yet, the contribution of the …

Temporal-spatial changes in viabilities and electrochemical properties of anode biofilms

D Sun, S Cheng, A Wang, F Li… - … science & technology, 2015 - ACS Publications
Sustained current generation by anodic biofilms is a key element for the longevity and
success of bioelectrochemical systems. Over time, however, inactive or dead cells can …

NanoSIMS imaging reveals metabolic stratification within current-producing biofilms

GL Chadwick, F Jiménez Otero… - Proceedings of the …, 2019 - National Acad Sciences
Metal-reducing bacteria direct electrons to their outer surfaces, where insoluble metal oxides
or electrodes act as terminal electron acceptors, generating electrical current from anaerobic …

An inner membrane cytochrome required only for reduction of high redox potential extracellular electron acceptors

CE Levar, CH Chan, MG Mehta-Kolte, DR Bond - MBio, 2014 - Am Soc Microbiol
Dissimilatory metal-reducing bacteria, such as Geobacter sulfurreducens, transfer electrons
beyond their outer membranes to Fe (III) and Mn (IV) oxides, heavy metals, and electrodes in …

Flagella act as Geobacter biofilm scaffolds to stabilize biofilm and facilitate extracellular electron transfer

X Liu, S Zhuo, X Jing, Y Yuan, C Rensing… - Biosensors and …, 2019 - Elsevier
Flagella are widely expressed in electroactive biofilms; however, their actual role is
unknown. To understand the role of flagella, two Geobacter sulfurreducens strains (KN400 …

Electron flow shifts from anode respiration to nitrate reduction during electroactive biofilm thickening

L Zhou, Y Jiang, Y Wan, X Liu, H Zhou… - Environmental …, 2020 - ACS Publications
As electrons generated through substrate oxidation compete with electrodes, dissimilatory
nitrate reduction to ammonium (DNRA), denitrification in bioelectrochemical systems in the …

Tailoring spatial structure of electroactive biofilm for enhanced activity and direct electron transfer on iron phthalocyanine modified anode in microbial fuel cells

Y Li, J Liu, X Chen, X Yuan, N Li, W He… - Biosensors and …, 2021 - Elsevier
Electroactive biofilm (EAB) has been considered as the core determining electricity
generation in microbial fuel cells (MFCs), and its spatial structure regulation for enhanced …