Open circuit potentials in biofilms: Biotransformation kinetics governs the dynamics under anaerobic conditions

Authors

  • Ljupcho Pejov Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University in Skopje, Skopje, N. Macedonia https://orcid.org/0000-0002-0108-3413
  • Kiril D. Hristovski The Polytechnic School, Ira A. Fulton Schools of Engineering, Arizona State University https://orcid.org/0000-0001-8694-4712
  • Scott R. Burge Burge Environmental Inc., Tempe, AZ, USA
  • Dragan Boscovic W. P. Carey Information Systems, W.P. Carey School of Business, Arizona State University
  • Frosina Babanovska-Milenkovska Faculty of Agriculture and Food Sciences, Ss. Cyril and Methodius University in Skopje, Skopje, N. Macedonia https://orcid.org/0000-0001-5795-7645
  • Russell S. Burge Burge Environmental Inc., Tempe, AZ, USA

DOI:

https://doi.org/10.20450/mjcce.2025.3313

Keywords:

biofilms, open circuit potential, thermodynamic/kinetics modeling, bioelectrochemical cells

Abstract

This study proposes a generalized model describing the temporal changes in open-circuit potentials in microbial biofilm systems. Using an Nernstian equilibrium approach combined with a series of different kinetic models for each experimental stage, it examines nutrient oxidation by microbes under anaerobic conditions with a continuous supply. New functions are derived to fit the experimental data and to provide in-depth understanding of the complex bioelectrochemical transformations occurring during the oxidation of nutrients by a biofilm.

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Published

2025-12-17 — Updated on 2025-12-24

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How to Cite

Pejov, L., Hristovski, K. D., Burge, S. R., Boscovic, D., Babanovska-Milenkovska, F., & Burge, R. S. (2025). Open circuit potentials in biofilms: Biotransformation kinetics governs the dynamics under anaerobic conditions . Macedonian Journal of Chemistry and Chemical Engineering, 44(2), 241–246. https://doi.org/10.20450/mjcce.2025.3313 (Original work published December 17, 2025)

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Section

Biochemistry