Biosensors based on lithotrophic microbial fuel cells in relation to heterotrophic counterparts: research progress, challenges, and opportunities

Hai The Pham; Hai The Pham

doi:10.3934/microbiol.2018.3.567

AIMS Microbiology

2018, Volume 4, Issue 3: 567-583. doi: 10.3934/microbiol.2018.3.567

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Biosensors based on lithotrophic microbial fuel cells in relation to heterotrophic counterparts: research progress, challenges, and opportunities

Hai The Pham ^{1,2
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1.
Research group for Physiology and Applications of Microorganisms (PHAM group), GREENLAB, Center for Life Science Research, Faculty of Biology, Vietnam National University-University of Science, Nguyen Trai 334, Thanh Xuan, Hanoi, Vietnam
2.
Department of Microbiology, Faculty of Biology, Vietnam National University-University of Science, Nguyen Trai 334, Thanh Xuan, Hanoi, Vietnam

Received: 26 March 2018 Accepted: 05 July 2018 Published: 20 July 2018

Biosensors based on the microbial fuel cell (MFC) platform have been receiving increasing attention from researchers owing to their unique properties. The lithotrophic MFC, operated with a neutrophilic iron-oxidizing bacterial community, has recently been developed and proposed to be used as a biosensor to detect iron, and likely metals in general, in water samples. Therefore, in this review, important aspects of the lithotrophic MFC-based biosensor, including its configuration, fabrication, microbiology, electron transfer mechanism, sensing performance, etc. were carefully discussed in comparison with those of heterotrophic (organotrophic) counterparts. Particularly, the challenges for the realization of the practical application of the device were determined. Furthermore, the application potentials of the device were also considered and positioned in the context of technologies for metal monitoring and bioremediation.
- microbial fuel cell,
- bioelectrochemical systems,
- iron bacteria,
- iron oxidation,
- lithotrophic biosensor
Citation: Hai The Pham. Biosensors based on lithotrophic microbial fuel cells in relation to heterotrophic counterparts: research progress, challenges, and opportunities[J]. AIMS Microbiology, 2018, 4(3): 567-583. doi: 10.3934/microbiol.2018.3.567

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Abstract

Biosensors based on the microbial fuel cell (MFC) platform have been receiving increasing attention from researchers owing to their unique properties. The lithotrophic MFC, operated with a neutrophilic iron-oxidizing bacterial community, has recently been developed and proposed to be used as a biosensor to detect iron, and likely metals in general, in water samples. Therefore, in this review, important aspects of the lithotrophic MFC-based biosensor, including its configuration, fabrication, microbiology, electron transfer mechanism, sensing performance, etc. were carefully discussed in comparison with those of heterotrophic (organotrophic) counterparts. Particularly, the challenges for the realization of the practical application of the device were determined. Furthermore, the application potentials of the device were also considered and positioned in the context of technologies for metal monitoring and bioremediation.

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