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An array of microliter-sized microbial fuel cells generating 100 μW of power

An array of microliter-sized microbial fuel cells generating 100 μW of power,10.1016/j.sna.2011.07.020,Sensors and Actuators A-physical,Seokheun Choi,

An array of microliter-sized microbial fuel cells generating 100 μW of power  
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We report an array of three microliter-sized microbial fuel cells (MFCs) connected in series. The three MFCs were integrated into a sandwich of two glass slides, incorporating two chambers of 50μL volumetric capacity that were separated by a cation exchange membrane (CEM). Each anolyte/catholyte chamber was defined by 500-μm thick PTEE (polytetrafluoroethylene) gaskets. The MFCs contained a Geobacter-enriched mixed bacterial culture and ferricyanide, which were independently driven into anolyte/catholyte chambers, respectively. The MFC array produced 100μW total power (33μW/cm2 or 667μW/cm3) and 1.8V output voltage, which are approximately 10 times and 4.5 times higher, respectively, than the maximum values of previously reported microliter-sized MFCs.
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