Electron Transfer between the Gram-Positive Enterococcus faecalis Bacterium and Electrode Surface through Osmium Redox Polymers

Research output: Contribution to journalArticle


The interaction between microorganisms that contain thick cell walls, such as the Gram-positive bacterium Enterococcus faecalis, and conductive surfaces can be improved by using redox polymers as mediators. Herein, we report a detailed electrochemical characterization of the communication between E. faecalis cells and a series of osmium redox polymers with different redox potentials. The current generated from glucose oxidation by films containing osmium redox polymers and E. faecalis cells increase over time (28h), owing to a decrease in charge-transfer resistance within the films, possibly owing to improved penetration of the redox polymer within the bacterial cell wall.


External organisations
  • University of Warsaw
  • Technical University of Denmark
  • National University of Ireland Galway
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Chemical Sciences


  • Electrochemical communication, Enterococcus faecalis, Extracellular electron transfer, Gram-positive bacterium, Osmium redox polymers
Original languageEnglish
Pages (from-to)110-113
Issue number1
Early online date2018
Publication statusPublished - 2019 Jan 2
Publication categoryResearch

Related research output

Galina Pankratova, 2018 Oct, Lund: Media-Tryck, Lund University, Sweden. 144 p.

Research output: ThesisDoctoral Thesis (compilation)

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