Results 141 to 150 of about 3,273 (176)

On the electrical conductivity of microbial nanowires and biofilms

Energy & Environmental Science, 2011
Dissimilatory metal-reducing bacteria (DMRB), such as Geobacter and Shewanella spp., occupy a distinct metabolic niche in which they acquire energy by coupling oxidation of organic fuels with reduction of insoluble extracellular electron acceptors (i.e., minerals).
Sarah M. Strycharz-Glaven, Rachel M. Snider, Anthony Guiseppi-Elie, Leonard M. Tender   +3 more
openaire   +1 more source

Solar-Driven Microbial Photoelectrochemical Cells with a Nanowire Photocathode

Nano Letters, 2010
We report a self-biased, solar-driven microbial photoelectrochemical cell (solar MPC) that can produce sustainable energy through coupling the microbial catalysis of biodegradable organic matter with solar energy conversion. The solar MPC consists of a p-type cuprous oxide nanowire-arrayed photocathode and an electricigen (Shewanella oneidensis MR-1 ...
Fang, Qian, Gongming, Wang, Yat, Li
openaire   +2 more sources

Structural Basis for the High Conductivity of Microbial Pili as Potential Nanowires

Journal of Nanoscience and Nanotechnology, 2020
The conductivity of Geobacter sulfurreducens is attributed mainly to its truncated pili, known as microbial nanowires. In this study, we explored the biological factors that limit electron transfer and hence the conductivity of pili, including the types of aromatic residue, distances between aromatic residues, local electrostatic environment around ...
Chuanjun, Shu, Ke, Xiao, Xiao, Sun
openaire   +2 more sources

Tunable metallic-like conductivity in microbial nanowire networks

Nature Nanotechnology, 2011
Electronic nanostructures made from natural amino acids are attractive because of their relatively low cost, facile processing and absence of toxicity. However, most materials derived from natural amino acids are electronically insulating. Here, we report metallic-like conductivity in films of the bacterium Geobacter sulfurreducens and also in pilin ...
Lovley, Derek, Malvankar, Nihil S, Vargas, Madeline, Nevin, Kelly P, Franks, Ashley E, Leang, Ching, Kim, Byoung-Chan, Inoue, Kengo, Mester, Tunde, Covalla, Sean F, Johnson, Jessica P, Rotello, Sincent M, Tuominen, Mark T   +12 more
openaire   +2 more sources

Metal-like microbial nanowires

Physics Today, 2011
Protein filaments made by some bacteria may bridge the gap between solid-state electronics and biological systems. Protein filaments made by some bacteria may bridge the gap between solid-state electronics and biological systems.
openaire   +1 more source

Microbial Nanowires: A New Paradigm for Biological Electron Transfer and Bioelectronics

ChemSusChem, 2012
AbstractThe discovery that Geobacter sulfurreducens can produce protein filaments with metallic‐like conductivity, known as microbial nanowires, that facilitate long‐range electron transport is a paradigm shift in biological electron transfer and has important implications for biogeochemistry, microbial ecology, and the emerging field of bioelectronics.
Nikhil S, Malvankar, Derek R, Lovley
openaire   +2 more sources

Decorating the Outer Surface of Microbially Produced Protein Nanowires with Peptides

ACS Synthetic Biology, 2019
The potential applications of electrically conductive protein nanowires (e-PNs) harvested from Geobacter sulfurreducens might be greatly expanded if the outer surface of the wires could be modified to confer novel sensing capabilities or to enhance binding to other materials. We developed a simple strategy for functionalizing e-PNs with surface-exposed
Toshiyuki Ueki, David J.F. Walker, Pier-Luc Tremblay, Kelly P. Nevin, Joy E. Ward, Trevor L. Woodard, Stephen S. Nonnenmann, Derek R. Lovley   +7 more
openaire   +2 more sources

Bacterial Nanowires and Electricity Generation in Microbial Fuel Cells

ECS Meeting Abstracts, 2010
Abstract not Available.
Yuri A. Gorby, Moh El-Naggar, Greg Wanger, Thomas Yuzvinsky, Kenneth Nealson   +4 more
openaire   +1 more source

Microbial Extension Cords: Nanowires in Shewanella oneidensis

Microbe Magazine, 2015
As part of respiration in microbial and other cells, electrons transfer through an electron transport chain to produce energy as adenosine triphosphate (ATP). For most bacteria, the final electron acceptor is a soluble substrate such as oxygen, sulfate, or nitrate that can be brought into the cell and then reduced.
openaire   +1 more source

Electrical Transport in Bacterial Nanowires: Implications for the Microbial-Inorganic Interface in Microbial Fuel Cells

ECS Meeting Abstracts, 2008
Abstract not Available.
Mohamed Y. El-Naggar, Yuri A. Gorby, Kenneth Nealson   +2 more
openaire   +1 more source