Document Detail


Impact of a static magnetic field on the electricity production of Shewanella-inoculated microbial fuel cells.
MedLine Citation:
PMID:  21493055     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The electricity production of Shewanella-inoculated microbial fuel cells (MFCs) under magnetic field (MF) exposure was investigated in different reactor systems. The persistency of the MF effect and the influences of MF intensity and direction on MFC performance were also studied. Application of a 100-mT static MF to the MFCs improved electricity production considerably, with an increase in the maximum voltage by 20-27% in both single- and two-chamber MFCs, while a more conspicuous improvement in the electricity generation was observed in a three-electrode cell. The MF effects were found to be immediate and reversible, and adverse effects seemed to occur when the MF was suddenly removed. The medium components analysis demonstrated that the application of MF led to an enhanced bioelectrochemical activity of Shewanella, and no significant promotion in mediator secretion was found. The improvement in the electricity production of MFCs under MF was mainly attributed to the enhanced bioelectrochemical activity, possibly through the oxidative stress mechanism. An accelerated cell growth under MF might also contribute to the enhanced substrate degradation and power generation.
Authors:
Wen-Wei Li; Guo-Ping Sheng; Xian-Wei Liu; Pei-Jie Cai; Min Sun; Xiang Xiao; Yun-Kun Wang; Zhong-Hua Tong; Fang Dong; Han-Qing Yu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2010-11-25
Journal Detail:
Title:  Biosensors & bioelectronics     Volume:  -     ISSN:  1873-4235     ISO Abbreviation:  -     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2011-4-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9001289     Medline TA:  Biosens Bioelectron     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2010 Elsevier B.V. All rights reserved.
Affiliation:
Department of Chemistry, University of Science & Technology of China, 96, Jinzhai Road, Hefei 230026, Anhui, China.
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