Exoelectrogens in microbial fuel cells toward bioelectricity generation: a review
Exoelectrogens are catalytic microorganisms competent to shuttle electrons exogenously to the electrode surface without utilizing artificial mediators. Diverse microorganisms acting as exoelectrogens in the fluctuating ambience of microbial fuel cells (MFCs) propose unalike metabolic pathways and in...
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| Format: | Article |
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John Wiley
2015
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| author | Kumar, Ravinder Lakhveer, Singh Abdul Wahid, Zularisam Md. Din, Mohd. Fadhil |
| author_facet | Kumar, Ravinder Lakhveer, Singh Abdul Wahid, Zularisam Md. Din, Mohd. Fadhil |
| author_sort | Kumar, Ravinder |
| collection | ePrints |
| description | Exoelectrogens are catalytic microorganisms competent to shuttle electrons exogenously to the electrode surface without utilizing artificial mediators. Diverse microorganisms acting as exoelectrogens in the fluctuating ambience of microbial fuel cells (MFCs) propose unalike metabolic pathways and incompatible, specific proteins or genes for their inevitable performance toward bioelectricity generation. A pivotal mechanism known as quorum sensing allows bacterial population to communicate and regulates the expression of biofilm-related genes. Moreover, it has been found that setting the anode potential affects the metabolism of the exoelectrogens and hence the output of MFCs. Microscopic, spectrometry investigations and gene deletion studies have confirmed the expression of certain genes for outer-membrane multiheme cytochromes and conductive pili, and their potential roles in the exoelectrogenic activity. Further, cyclic voltammetry has suggested the role of multifarious redox-active compounds secreted by the exoelectrogens in direct electron transport mechanisms. Besides, it also explores the various mechanisms of exoelectrogens with genetic and molecular approaches, such as biofilm formation, microbial metabolism, bioelectrogenesis, and electron transfer mechanisms from inside the exoelectrogens to the electrodes and vice versa. |
| first_indexed | 2024-03-05T19:36:48Z |
| format | Article |
| id | utm.eprints-55145 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:36:48Z |
| publishDate | 2015 |
| publisher | John Wiley |
| record_format | dspace |
| spelling | utm.eprints-551452017-02-15T07:41:24Z http://eprints.utm.my/55145/ Exoelectrogens in microbial fuel cells toward bioelectricity generation: a review Kumar, Ravinder Lakhveer, Singh Abdul Wahid, Zularisam Md. Din, Mohd. Fadhil TA Engineering (General). Civil engineering (General) Exoelectrogens are catalytic microorganisms competent to shuttle electrons exogenously to the electrode surface without utilizing artificial mediators. Diverse microorganisms acting as exoelectrogens in the fluctuating ambience of microbial fuel cells (MFCs) propose unalike metabolic pathways and incompatible, specific proteins or genes for their inevitable performance toward bioelectricity generation. A pivotal mechanism known as quorum sensing allows bacterial population to communicate and regulates the expression of biofilm-related genes. Moreover, it has been found that setting the anode potential affects the metabolism of the exoelectrogens and hence the output of MFCs. Microscopic, spectrometry investigations and gene deletion studies have confirmed the expression of certain genes for outer-membrane multiheme cytochromes and conductive pili, and their potential roles in the exoelectrogenic activity. Further, cyclic voltammetry has suggested the role of multifarious redox-active compounds secreted by the exoelectrogens in direct electron transport mechanisms. Besides, it also explores the various mechanisms of exoelectrogens with genetic and molecular approaches, such as biofilm formation, microbial metabolism, bioelectrogenesis, and electron transfer mechanisms from inside the exoelectrogens to the electrodes and vice versa. John Wiley 2015-06 Article PeerReviewed Kumar, Ravinder and Lakhveer, Singh and Abdul Wahid, Zularisam and Md. Din, Mohd. Fadhil (2015) Exoelectrogens in microbial fuel cells toward bioelectricity generation: a review. International Journal of Energy Research, 39 (8). pp. 1048-1067. ISSN 0363-907X http://dx.doi.org/10.1002/er.3305 DOI:10.1002/er.3305 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Kumar, Ravinder Lakhveer, Singh Abdul Wahid, Zularisam Md. Din, Mohd. Fadhil Exoelectrogens in microbial fuel cells toward bioelectricity generation: a review |
| title | Exoelectrogens in microbial fuel cells toward bioelectricity generation: a review |
| title_full | Exoelectrogens in microbial fuel cells toward bioelectricity generation: a review |
| title_fullStr | Exoelectrogens in microbial fuel cells toward bioelectricity generation: a review |
| title_full_unstemmed | Exoelectrogens in microbial fuel cells toward bioelectricity generation: a review |
| title_short | Exoelectrogens in microbial fuel cells toward bioelectricity generation: a review |
| title_sort | exoelectrogens in microbial fuel cells toward bioelectricity generation a review |
| topic | TA Engineering (General). Civil engineering (General) |
| work_keys_str_mv | AT kumarravinder exoelectrogensinmicrobialfuelcellstowardbioelectricitygenerationareview AT lakhveersingh exoelectrogensinmicrobialfuelcellstowardbioelectricitygenerationareview AT abdulwahidzularisam exoelectrogensinmicrobialfuelcellstowardbioelectricitygenerationareview AT mddinmohdfadhil exoelectrogensinmicrobialfuelcellstowardbioelectricitygenerationareview |