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Microbial nanowires for bioenergy applications
Current Opinion in Biotechnology, 2014Microbial nanowires are electrically conductive filaments that facilitate long-range extracellular electron transfer. The model for electron transport along Shewanella oneidensis nanowires is electron hopping/tunneling between cytochromes adorning the filaments.
Nikhil S Malvankar, Derek R Lovley
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In Situ Enhanced Yields of Microbial Nanowires: The Key Role of Environmental Stress
ACS Biomaterials Science and Engineering, 2023The conductive microbial nanowires of Geobacter sulfurreducens serve as a model for long-range extracellular electron transfer (EET), which is considered a revolutionary "green" nanomaterial in the fields of bioelectronics, renewable energy, and bioremediation. However, there is no efficient pathway to induce microorganisms to express a large amount of
Lei Wang +2 more
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Microbial nanowires for sustainable electronics
Nature Reviews BioengineeringMatthew J Guberman-Pfeffer +2 more
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Identification and topographical characterisation of microbial nanowires in Nostoc punctiforme
Antonie Van Leeuwenhoek, 2016Extracellular pili-like structures (PLS) produced by cyanobacteria have been poorly explored. We have done detailed topographical and electrical characterisation of PLS in Nostoc punctiforme PCC 73120 using transmission electron microscopy (TEM) and conductive atomic force microscopy (CAFM). TEM analysis showed that N. punctiforme produces two separate
Angel A J Torriero +2 more
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Microbial nanowires – Electron transport and the role of synthetic analogues
Acta Biomaterialia, 2018Electron transfer is central to cellular life, from photosynthesis to respiration. In the case of anaerobic respiration, some microbes have extracellular appendages that can be utilised to transport electrons over great distances. Two model organisms heavily studied in this arena are Shewanella oneidensis and Geobacter sulfurreducens.
Rhiannon Creasey +2 more
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Extracellular electron transfer via microbial nanowires
Nature, 2005Microbes that can transfer electrons to extracellular electron acceptors, such as Fe(iii) oxides, are important in organic matter degradation and nutrient cycling in soils and sediments. Previous investigations on electron transfer to Fe(iii) have focused on the role of outer-membrane c-type cytochromes.
Lovley, Derek +5 more
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Intrinsically Conductive Microbial Nanowires for ‘Green’ Electronics with Novel Functions
Trends in Biotechnology, 2021Intrinsically conductive protein nanowires, microbially produced from inexpensive, renewable feedstocks, are a sustainable alternative to traditional nanowire electronic materials, which require high energy inputs and hazardous conditions/chemicals for fabrication and can be highly toxic. Pilin-based nanowires can be tailored for specific functions via
Derek R, Lovley, Jun, Yao
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On the electrical conductivity of microbial nanowires and biofilms
Energy & Environmental Science, 2011Dissimilatory 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 +3 more
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Structural Basis for the High Conductivity of Microbial Pili as Potential Nanowires
Journal of Nanoscience and Nanotechnology, 2020The 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
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Microbial Nanowires: A New Paradigm for Biological Electron Transfer and Bioelectronics
ChemSusChem, 2012AbstractThe 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
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