Enhancing bioelectricity generation in microbial fuel cells and biophotovoltaics using nanomaterials

M Mouhib, A Antonucci, M Reggente, A Amirjani… - Nano Research, 2019 - Springer
Microbial fuel cells and biophotovoltaics represent promising technologies for green
bioelectricity generation. However, these devices suffer from low durability and efficiency …

Spin-dependent electron transport through bacterial cell surface multiheme electron conduits

S Mishra, S Pirbadian, AK Mondal… - Journal of the …, 2019 - ACS Publications
Multiheme cytochromes, located on the bacterial cell surface, function as long-distance (> 10
nm) electron conduits linking intracellular reactions to external surfaces. This extracellular …

Microfluidic dielectrophoresis illuminates the relationship between microbial cell envelope polarizability and electrochemical activity

Q Wang, AAD Jones III, JA Gralnick, L Lin, CR Buie - Science advances, 2019 - science.org
Electrons can be transported from microbes to external insoluble electron acceptors (eg,
metal oxides or electrodes in an electrochemical cell). This process is known as extracellular …

Kinetics of trifurcated electron flow in the decaheme bacterial proteins MtrC and MtrF

X Jiang, B Burger, F Gajdos… - Proceedings of the …, 2019 - National Acad Sciences
The bacterium Shewanella oneidensis has evolved a sophisticated electron transfer (ET)
machinery to export electrons from the cytosol to extracellular space during extracellular …

Photoferrotrophs produce a PioAB electron conduit for extracellular electron uptake

D Gupta, MC Sutherland, K Rengasamy, JM Meacham… - MBio, 2019 - Am Soc Microbiol
Photoferrotrophy is a form of anoxygenic photosynthesis whereby bacteria utilize soluble or
insoluble forms of ferrous iron as an electron donor to fix carbon dioxide using light energy …

Diffusion-Based Recycling of Flavins Allows Shewanella oneidensis MR-1 To Yield Energy from Metal Reduction Across Physical Separations

K Michelson, RE Alcalde, RA Sanford… - … science & technology, 2019 - ACS Publications
We fabricated a microfluidic reactor with a nanoporous barrier to characterize electron
transport between Shewanella oneidensis MR-1 and the metal oxide birnessite across a …

Metal reduction and protein secretion genes required for iodate reduction by Shewanella oneidensis

YJ Toporek, JK Mok, HD Shin, BD Lee… - Applied and …, 2019 - Am Soc Microbiol
The metal-reducing gammaproteobacterium Shewanella oneidensis reduces iodate (IO3−)
as an anaerobic terminal electron acceptor. Microbial IO3− electron transport pathways are …

[HTML][HTML] Towards compartmentalized photocatalysis: multihaem proteins as transmembrane molecular electron conduits

A Stikane, ET Hwang, EV Ainsworth, SEH Piper… - Faraday …, 2019 - pubs.rsc.org
The high quantum efficiency of natural photosynthesis has inspired chemists for solar fuel
synthesis. In photosynthesis, charge recombination in photosystems is minimized by efficient …

Analysis of the microbiota involved in the early changes associated with indigo reduction in the natural fermentation of indigo

Z Tu, H de Fátima Silva Lopes, K Hirota… - World Journal of …, 2019 - Springer
Constituents of the seed microbiota and initial changes in the microbiota in fermentations
are important in fermentation progression. To identify the origin of indigo-reducing bacteria …

[HTML][HTML] In situ Electrochemical Studies of the Terrestrial Deep Subsurface Biosphere at the Sanford Underground Research Facility, South Dakota, USA

Y Jangir, AA Karbelkar, NM Beedle, LA Zinke… - Frontiers in Energy …, 2019 - frontiersin.org
The terrestrial deep subsurface is host to significant and diverse microbial populations.
However, these microbial populations remain poorly characterized, partially due to the …