Extracellular electron uptake by Geobacter from solid donors: Biocorrosion and biohybrid systems.

Geobacter spp. can extract electrons from solid donors, causing biocorrosion and enabling applications like pollutant degradation and bioproduction.

• Why it matters: Understanding EEU is crucial because it impacts infrastructure integrity and offers potential for sustainable biotechnological processes, yet the molecular mechanisms remain unclear.
• What they did: The review analyzes how Geobacter species perform extracellular electron uptake through direct contact, electron shuttles, and vesicles, highlighting their roles in natural and engineered systems.
• The result: This knowledge advances the development of biocorrosion mitigation strategies and biohybrid systems, facilitating environmental and industrial applications based on Geobacter's unique electron transfer abilities.