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Translating Extracellular Electron Transfer Activities with Organic Electrochemical Transistors
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Published on: January 31, 2025

Programming Bio-Bio Electronic Interfaces for Light-Driven Interspecies Electron Transfer.

Lancheng Wang1, Peng Chen1, Yujie Wang1

  • 1Department of Pharmaceutical Engineering, China Pharmaceutical University, Nanjing, China.

Angewandte Chemie (International Ed. in English)
|June 30, 2026
PubMed
Summary
This summary is machine-generated.

Researchers developed programmable living electronic interfaces for direct, light-driven interspecies electron transfer (IET) between microorganisms. This bio-electronic system enhances light-driven biocatalysis by enabling efficient electron flow between two living cells.

Keywords:
conductive polymerhost–guest interactioninterspecies electron transferredox mediatorssustainable biocatalysis

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Investigating Protein-protein Interactions in Live Cells Using Bioluminescence Resonance Energy Transfer
11:46

Investigating Protein-protein Interactions in Live Cells Using Bioluminescence Resonance Energy Transfer

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Area of Science:

  • Bioelectronics
  • Synthetic Biology
  • Microbial Consortia

Background:

  • Living systems utilize redox networks for electron flow.
  • Current bioelectronic platforms often use abiotic materials, limiting selective coupling.
  • Need for interfaces enabling direct interspecies electron transfer (IET) between living cells.

Purpose of the Study:

  • To engineer programmable living electronic interfaces for light-driven IET.
  • To achieve selective cell-cell assembly and electron transfer between microorganisms.
  • To enhance light-driven biocatalysis through direct bio-bio electronic architecture.

Main Methods:

  • Integration of poly(3,4-ethylenedioxythiophene) network into Synechococcus elongatus.
  • Utilizing cucurbit[7]uril host-guest interactions for engineered Escherichia coli assembly.
  • Employing redox-active mediators for energetically matched electron transfer pathways.

Main Results:

  • Demonstrated programmable living electronic interfaces for light-driven IET.
  • Achieved 83.7% IET efficiency using neutral red as an optimal mediator.
  • Established direct electron transfer from photosynthetic Synechococcus elongatus to engineered Escherichia coli.

Conclusions:

  • Developed an integrated bio-bio electronic architecture for living redox networks.
  • Established a new paradigm for light-powered microbial consortia.
  • Showcased potential for enhanced light-driven biocatalysis via direct interspecies electron transfer.