ArticleACS nano2024
Temperature-Dependent Characterization of Long-Range Conduction in Conductive Protein Fibers of Cable Bacteria.
Article in ACS nano, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Model Structures and Electron Transfer Properties of Conductive Nickel-Organic Nanoribbons in Cable Bacteria.The journal of physical chemistry letters · 2026Article
- Highly efficient long-range conduction through a biosynthetic nickel-organic framework.Nature communications · 2026Article
- Charge Injection and Interfiber Electrical Conduction in Cable Bacteria.ACS applied materials & interfaces · 2026Article
- Single-Molecule Conductance of Non-Redox Proteins: Mechanisms, Measurements, and Applications.Biomolecules · 2026Review
- Pullulan Coating Preserves High Conductivity in Cable Bacteria Wires.ACS applied bio materials · 2026Article
- From single step hops to emergent biological phenomena.Journal of inorganic biochemistry · 2026Review
- Without Contact Resistance, Proteins in Thin-Film Solid-State Junctions Can Be Efficient Electronic Conducting Materials.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Mixed Ionic and Electronic Charge Transport in Conductive Protein Fibers Revealed with DC Electrical Measurements.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- Inactive "Ghost" Cells Do Not Affect Motility and Long-Range Electron Transport in Filamentous Cable Bacteria.Environmental microbiology · 2025Article
- A novel cable bacteria species with a distinct morphology and genomic potential.Applied and environmental microbiology · 2025Article
- Nickel-Dithiolene Cofactors as Electron Donors and Acceptors in Protein Hosts.The journal of physical chemistry. B · 2025Article
- Temperature-Dependent Characterization of Long-Range Conduction in Conductive Protein Fibers of Cable Bacteria.ACS nano · 2024Article
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Multicellular cable bacteria display an exceptional form of biological conduction, channeling electric currents across centimeter distances through a regular network of protein fibers embedded in the cell envelope. The fiber conductivity is among the highest recorded for biomaterials, but the underlying mechanism of electron transport remains elusive. Here, we performed detailed characterization of the conductance from room temperature down to liquid helium temperature to attain insight into the mechanism of long-range conduction. A consistent behavior is seen within and across individual filaments. The conductance near room temperature reveals thermally activated behavior, yet with a low activation energy. At cryogenic temperatures, the conductance at moderate electric fields becomes virtually independent of temperature, suggesting that quantum vibrations couple to the charge transport through nuclear tunneling. Our data support an incoherent multistep hopping model within parallel conduction channels with a low activation energy and high transfer efficiency between hopping sites. This model explains the capacity of cable bacteria to transport electrons across centimeter-scale distances, thus illustrating how electric currents can be guided through extremely long supramolecular protein structures.
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