Journal
BIOSENSORS & BIOELECTRONICS
Volume 79, Issue -, Pages 406-410Publisher
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2015.12.067
Keywords
Microfluidic; Miniature microbial fuel cells; Laminar flow; Biofilm
Categories
Funding
- National Natural Science Funds for Distinguished Young Scholar [51325602]
- National Natural Science Foundation of China [51376203, 51276208]
- Overseas, Hong Kong & Macao Scholars Collaborated Research Fund [51428601]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20120191110010]
- Fundamental Research Funds for the Central Universities [CDJZR14145502]
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A laminar-flow controlled microfluidic microbial fuel cell (MMFC) is considered as a promising approach to be a bio-electrochemical system (BES). But poor bacterial colonization and low power generation are two severe bottlenecks to restrict its development. In this study, we reported a MMFC with multiple anolyte inlets (MMFC-MI) to enhance the biofilm formation and promote the power density of MMFCs. Voltage profiles during the inoculation process demonstrated MMFC-MI had a faster start-up process than the conventional microfluidic microbial fuel cell with one inlet (MMFC-OI). Meanwhile, benefited from the periodical replenishment of boundary layer near the electrode, a more densely-packed bacterial aggregation was observed along the flow direction and also the substantially low internal resistance for MMFC-MI. Most importantly, the output power density of MMFC-MI was the highest value among the reported mu L-scale MFCs to our best knowledge. The presented MMFC-MI appears promising for bio-chip technology and extends the scope of microfluidic energy. (C) 2015 Elsevier B.V. All rights reserved.
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