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Interfacing bacteria as biocatalysts with an electrode provides the basis for emerging bioelectrochemical systems that enable sustainable energy interconversion between electrical and chemical energy. Electron transfer rates at the abiotic‐biotic interface are, however, often limited by poor electrical contacts and the intrinsically insulating cell membranes. Herein, we report the first example of an n‐type redox‐active conjugated oligoelectrolyte, namely COE‐NDI, which spontaneously intercalates into cell membranes and mimics the function of endogenous transmembrane electron transport proteins. The incorporation of COE‐NDI into Shewanella oneidensis MR‐1 cells amplifies current uptake from the electrode by 4‐fold, resulting in the enhanced bio‐electroreduction of fumarate to succinate. Moreover, COE‐NDI can serve as a "protein prosthetic" to rescue current uptake in non‐electrogenic knockout mutants. [ABSTRACT FROM AUTHOR]

Back Cover: An n-Type Conjugated Oligoelectrolyte Mimics Transmembrane Electron Transport Proteins for Enhanced Microbial Electrosynthesis (Angew. Keywords: Biocatalysis; Biohybrid; Conjugated Oligoelectrolyte; Energy Conversion; Microbial Electrosynthesis EN Biocatalysis Biohybrid Conjugated Oligoelectrolyte Energy Conversion Microbial Electrosynthesis 1 1 1 08/10/23 20230814 NES 230814 B Microbial electrosynthesis b is a sustainable strategy for electricity-driven chemical production. Biocatalysis, Biohybrid, Conjugated Oligoelectrolyte, Energy Conversion, Microbial Electrosynthesis. [Extracted from the article]

In their Communication (e202305189), Guillermo C. Bazan et al. designed an n-type redox-active conjugated oligoelectrolyte (COE) that intercalates into cell membranes and mimics the function of endogenous transmembrane electron transport proteins. Biocatalysis, Biohybrid, Conjugated Oligoelectrolyte, Energy Conversion, Microbial Electrosynthesis Keywords: Biocatalysis; Biohybrid; Conjugated Oligoelectrolyte; Energy Conversion; Microbial Electrosynthesis EN Biocatalysis Biohybrid Conjugated Oligoelectrolyte Energy Conversion Microbial Electrosynthesis 1 1 1 08/09/23 20230814 NES 230814 B Microbial electrosynthesis b is a sustainable strategy for electricity-driven chemical production. [Extracted from the article]

In article number 2300019, Guillermo C. Bazan and co-workers report on a conductive polymer cell coating that enhances bidirectional extracellular electron transfer for more efficient bioelectricity generation and microbial electrosynthesis. In essence, the polymer coating confers additional pathways for electronic communication between the bacteria and the electrode. A Microbial Cell Coating Based on a Conjugated Polyelectrolyte with Broad Reduction Potential Increases Inward and Outward Extracellular Electron Transfer (Adv. [Extracted from the article]