Recent progress in the characterization and application of exo-electrogenic microorganisms
Chamindu Jayathilake1, Gayani Piyumika1, Zumaira Nazeer1
1Department of Biology, Rajarata University, Mihintale, 50300, Sri Lanka.
Antonie Van Leeuwenhoek
|January 3, 2024
Summary
Exo-electrogenic microorganisms, capable of electron transfer, are expanding beyond microbial fuel cells into diverse bioelectrochemical systems. Their novel applications include biosensors, carbon sequestration, and enhanced energy production.
Area of Science:
- Microbiology
- Electrochemistry
- Environmental Science
Background:
- Exo-electrogenic microorganisms transfer electrons externally, traditionally used in microbial fuel cells and electrolysis cells.
- Their applications were limited to power generation and producing basic compounds like biohydrogen.
Purpose of the Study:
- To provide a comprehensive overview of exo-electrogenic organisms.
- To highlight their expanding and novel applications in bioelectrochemical systems.
Main Methods:
- Review of current scientific literature on exo-electrogenic microorganisms.
- Analysis of recent advancements and emerging applications.
Main Results:
- Exo-electrogenic organisms now have diverse applications including microbial desalination, electro-synthesis, carbon sequestration, and biosensors.
- Novel uses include biocathodes for oxygen reduction and photosynthetic microorganisms in self-sustained systems.
Conclusions:
- The utility of exo-electrogenic microorganisms has significantly broadened beyond conventional uses.
- These organisms show great promise for sustainable technologies and environmental monitoring.
