Effective Control of Bioelectricity Generation from a Microbial Fuel Cell by Logical Combinations of pH and Temperature

In this study, a microbial fuel cell (MFC) with switchable power release is designed, which can be logically controlled by combinations of the most physiologically important parameters such as “temperature” and “pH.” Changes in voltage output in response to temperature and pH changes were significan...

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Main Authors: Jiahuan Tang, Ting Liu, Yong Yuan, Li Zhuang
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/186016
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author Jiahuan Tang
Ting Liu
Yong Yuan
Li Zhuang
author_facet Jiahuan Tang
Ting Liu
Yong Yuan
Li Zhuang
author_sort Jiahuan Tang
collection DOAJ
description In this study, a microbial fuel cell (MFC) with switchable power release is designed, which can be logically controlled by combinations of the most physiologically important parameters such as “temperature” and “pH.” Changes in voltage output in response to temperature and pH changes were significant in which voltage output decreased sharply when temperature was lowered from 30°C to 10°C or pH was decreased from 7.0 to 5.0. The switchability of the MFC comes from the microbial anode whose activity is affected by the combined medium temperature and pH. Changes in temperature and pH cause reversible activation-inactivation of the bioanode, thus affecting the activity of the entire MFC. With temperature and pH as input signals, an AND logic operation is constructed for the MFC whose power density is controlled. The developed system has the potential to meet the requirement of power supplies producing electrical power on-demand for self-powered biosensors or biomedical devices.
format Article
id doaj-art-6b3fbe04fdba4513a7e2f22686cbd48b
institution Kabale University
issn 2356-6140
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language English
publishDate 2014-01-01
publisher Wiley
record_format Article
series The Scientific World Journal
spelling doaj-art-6b3fbe04fdba4513a7e2f22686cbd48b2025-02-03T05:46:17ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/186016186016Effective Control of Bioelectricity Generation from a Microbial Fuel Cell by Logical Combinations of pH and TemperatureJiahuan Tang0Ting Liu1Yong Yuan2Li Zhuang3Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaCollege of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, ChinaGuangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, ChinaGuangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, ChinaIn this study, a microbial fuel cell (MFC) with switchable power release is designed, which can be logically controlled by combinations of the most physiologically important parameters such as “temperature” and “pH.” Changes in voltage output in response to temperature and pH changes were significant in which voltage output decreased sharply when temperature was lowered from 30°C to 10°C or pH was decreased from 7.0 to 5.0. The switchability of the MFC comes from the microbial anode whose activity is affected by the combined medium temperature and pH. Changes in temperature and pH cause reversible activation-inactivation of the bioanode, thus affecting the activity of the entire MFC. With temperature and pH as input signals, an AND logic operation is constructed for the MFC whose power density is controlled. The developed system has the potential to meet the requirement of power supplies producing electrical power on-demand for self-powered biosensors or biomedical devices.http://dx.doi.org/10.1155/2014/186016
spellingShingle Jiahuan Tang
Ting Liu
Yong Yuan
Li Zhuang
Effective Control of Bioelectricity Generation from a Microbial Fuel Cell by Logical Combinations of pH and Temperature
The Scientific World Journal
title Effective Control of Bioelectricity Generation from a Microbial Fuel Cell by Logical Combinations of pH and Temperature
title_full Effective Control of Bioelectricity Generation from a Microbial Fuel Cell by Logical Combinations of pH and Temperature
title_fullStr Effective Control of Bioelectricity Generation from a Microbial Fuel Cell by Logical Combinations of pH and Temperature
title_full_unstemmed Effective Control of Bioelectricity Generation from a Microbial Fuel Cell by Logical Combinations of pH and Temperature
title_short Effective Control of Bioelectricity Generation from a Microbial Fuel Cell by Logical Combinations of pH and Temperature
title_sort effective control of bioelectricity generation from a microbial fuel cell by logical combinations of ph and temperature
url http://dx.doi.org/10.1155/2014/186016
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