Microfabricated microbial fuel cell arrays reveal electrochemically active microbes.

Microbial fuel cells (MFCs) are remarkable "green energy" devices that exploit microbes to generate electricity from organic compounds. MFC devices currently being used and studied do not generate sufficient power to support widespread and cost-effective applications. Hence, research has f...

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Autores principales:	Huijie Hou, Lei Li, Younghak Cho, Paul de Figueiredo, Arum Han
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2009
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a59b4ba08c1d4e779068c5ee14847ae2
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spelling	oai:doaj.org-article:a59b4ba08c1d4e779068c5ee14847ae22021-11-25T06:21:08ZMicrofabricated microbial fuel cell arrays reveal electrochemically active microbes.1932-620310.1371/journal.pone.0006570https://doaj.org/article/a59b4ba08c1d4e779068c5ee14847ae22009-08-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19668333/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Microbial fuel cells (MFCs) are remarkable "green energy" devices that exploit microbes to generate electricity from organic compounds. MFC devices currently being used and studied do not generate sufficient power to support widespread and cost-effective applications. Hence, research has focused on strategies to enhance the power output of the MFC devices, including exploring more electrochemically active microbes to expand the few already known electricigen families. However, most of the MFC devices are not compatible with high throughput screening for finding microbes with higher electricity generation capabilities. Here, we describe the development of a microfabricated MFC array, a compact and user-friendly platform for the identification and characterization of electrochemically active microbes. The MFC array consists of 24 integrated anode and cathode chambers, which function as 24 independent miniature MFCs and support direct and parallel comparisons of microbial electrochemical activities. The electricity generation profiles of spatially distinct MFC chambers on the array loaded with Shewanella oneidensis MR-1 differed by less than 8%. A screen of environmental microbes using the array identified an isolate that was related to Shewanella putrefaciens IR-1 and Shewanella sp. MR-7, and displayed 2.3-fold higher power output than the S. oneidensis MR-1 reference strain. Therefore, the utility of the MFC array was demonstrated.Huijie HouLei LiYounghak ChoPaul de FigueiredoArum HanPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 4, Iss 8, p e6570 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Huijie Hou Lei Li Younghak Cho Paul de Figueiredo Arum Han Microfabricated microbial fuel cell arrays reveal electrochemically active microbes.
description	Microbial fuel cells (MFCs) are remarkable "green energy" devices that exploit microbes to generate electricity from organic compounds. MFC devices currently being used and studied do not generate sufficient power to support widespread and cost-effective applications. Hence, research has focused on strategies to enhance the power output of the MFC devices, including exploring more electrochemically active microbes to expand the few already known electricigen families. However, most of the MFC devices are not compatible with high throughput screening for finding microbes with higher electricity generation capabilities. Here, we describe the development of a microfabricated MFC array, a compact and user-friendly platform for the identification and characterization of electrochemically active microbes. The MFC array consists of 24 integrated anode and cathode chambers, which function as 24 independent miniature MFCs and support direct and parallel comparisons of microbial electrochemical activities. The electricity generation profiles of spatially distinct MFC chambers on the array loaded with Shewanella oneidensis MR-1 differed by less than 8%. A screen of environmental microbes using the array identified an isolate that was related to Shewanella putrefaciens IR-1 and Shewanella sp. MR-7, and displayed 2.3-fold higher power output than the S. oneidensis MR-1 reference strain. Therefore, the utility of the MFC array was demonstrated.
format	article
author	Huijie Hou Lei Li Younghak Cho Paul de Figueiredo Arum Han
author_facet	Huijie Hou Lei Li Younghak Cho Paul de Figueiredo Arum Han
author_sort	Huijie Hou
title	Microfabricated microbial fuel cell arrays reveal electrochemically active microbes.
title_short	Microfabricated microbial fuel cell arrays reveal electrochemically active microbes.
title_full	Microfabricated microbial fuel cell arrays reveal electrochemically active microbes.
title_fullStr	Microfabricated microbial fuel cell arrays reveal electrochemically active microbes.
title_full_unstemmed	Microfabricated microbial fuel cell arrays reveal electrochemically active microbes.
title_sort	microfabricated microbial fuel cell arrays reveal electrochemically active microbes.
publisher	Public Library of Science (PLoS)
publishDate	2009
url	https://doaj.org/article/a59b4ba08c1d4e779068c5ee14847ae2
work_keys_str_mv	AT huijiehou microfabricatedmicrobialfuelcellarraysrevealelectrochemicallyactivemicrobes AT leili microfabricatedmicrobialfuelcellarraysrevealelectrochemicallyactivemicrobes AT younghakcho microfabricatedmicrobialfuelcellarraysrevealelectrochemicallyactivemicrobes AT pauldefigueiredo microfabricatedmicrobialfuelcellarraysrevealelectrochemicallyactivemicrobes AT arumhan microfabricatedmicrobialfuelcellarraysrevealelectrochemicallyactivemicrobes
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Microfabricated microbial fuel cell arrays reveal electrochemically active microbes.

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