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21 February 2020 Ultra-low power pH sensor powered by microbial fuel cells
Nathaniel Brochu, Lingling Gong, Jesse Greener, Amine Miled
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Proceedings Volume 11235, Microfluidics, BioMEMS, and Medical Microsystems XVIII; 112350L (2020) https://doi.org/10.1117/12.2547233
Event: SPIE BiOS, 2020, San Francisco, California, United States
Abstract
Wire-free power supplies provide portability, flexibility and cost efficiency as they reduces hardware complexity. Thus, in this paper we designed a portable pH sensor based on a microbial fuel cell (MFC) as a wire free energy source. Our MFCs supplied 0.127 mW to power our ultra-low power portable pH sensor. The error of the newly designed pH sensor is less than 5% when pH is between 4 and 10. Also it provides, an autonomy of 4 hours when the pH sensor is continuously used.
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Nathaniel Brochu, Lingling Gong, Jesse Greener, and Amine Miled "Ultra-low power pH sensor powered by microbial fuel cells", Proc. SPIE 11235, Microfluidics, BioMEMS, and Medical Microsystems XVIII, 112350L (21 February 2020); https://doi.org/10.1117/12.2547233
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KEYWORDS
Sensors
Electrodes
Bacteria
Electrons
Oxidation
Signal processing
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