Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5146354 | International Journal of Hydrogen Energy | 2017 | 7 Pages |
Abstract
The use of biosensors for water alert system is critical for providing safe water to the general public. A cathode-shared microbial fuel cell (MFC) sensor array was designed improve the detection credibility by eliminating the cathode performance variation, based on the principle that only the bioanode would be used as the sensing and transducing element. Four integrated MFCs exhibited high parallelism, and independence without the cross contamination or electric signal interference. Two linear ranges were observed (from 0.25 to 0.75Â mM and from 1 to 10Â mM) for acetate detection. A linear relationship between inhibition ratio (IR) and Cu2+ concentration from 2 to 6Â mg/L was recorded. The sensor expressed an immediate voltage decrease when exposed to a pH decrease from 6 to 4. The compact design of the cathode-shared MFC sensor array assure the detection credibility, and the number of the integrated MFC sensors is alterable based on the monitoring requirement.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Yong Jiang, Peng Liang, Panpan Liu, Xiaoxu Yan, Yanhong Bian, Xia Huang,