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Stability and reliability of anodic biofilms under different feedstock conditions: Towards microbial fuel cell sensors

Walter, X. Alexis; You, Jiseon; Greenman, John; Melhuish, Chris; Ieropoulos, Ioannis

Authors

X. Alexis Walter

Jiseon You Jiseon.You@uwe.ac.uk
Research Fellow - Bristol BioEnergy Centre

Chris Melhuish Chris.Melhuish@uwe.ac.uk
AVC - Advanced Technologies & Professor of Robotics & Autonomous Systems



Abstract

© 2015 The Authors. Stability and reliability of microbial fuel cell anodic biofilms, consisting of mixed cultures, were investigated in a continuously fed system. Two groups of anodic biofilm matured with different substrates, acetate and casein for 20-25. days, reached steady states and produced 80-87. μW and 20-29. μW consistently for 3. weeks, respectively. When the substrates were swapped, the casein-enriched group showed faster response to acetate and higher power output, compared to the acetate-enriched group. Also when the substrates were switched back to their original groups, the power output of both groups returned to the previous levels more quickly than when the substrates were swapped the first time. During the substrate change, both MFC groups showed stable power output once they reached their steady states and the output of each group with different substrates was reproducible within the same group. Community level physiological profiling also revealed the possibility of manipulating anodic biofilm metabolisms through exposure to different feedstock conditions.

Journal Article Type Article
Publication Date Dec 1, 2015
Journal Sensing and Bio-Sensing Research
Print ISSN 2214-1804
Electronic ISSN 2214-1804
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 6
Pages 43-50
APA6 Citation Walter, X. A., You, J., Walter, X. A., Greenman, J., Melhuish, C., & Ieropoulos, I. (2015). Stability and reliability of anodic biofilms under different feedstock conditions: Towards microbial fuel cell sensors. Sensing and Bio-Sensing Research, 6, 43-50. https://doi.org/10.1016/j.sbsr.2015.11.007
DOI https://doi.org/10.1016/j.sbsr.2015.11.007
Keywords 3D printed microbial fuel cell (MFC), anodic biofilm, microbial community, substrate change, biosensor
Publisher URL http://dx.doi.org/10.1016/j.sbsr.2015.11.007
Additional Information Additional Information : The dataset for this study is available from the UWE Research Data Repository: http://researchdata.uwe.ac.uk/153/

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