Electrode compositions and configurations for electrochemical bioreactor systems
US7250288B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2002 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | May 23, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/806
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Electrodes and configurations for electrochemical bioreactor systems that can use electrical energy as a source of reducing power in fermentation or enzymatic reactions and that can use electron mediators and a biocatalyst, such as cells or enzymes, to produce electricity are disclosed. Example electrodes in the system may comprise: (1) neutral red covalently bound to graphite felt (FIG. 1); (2) a carboxylated cellulose bound to the graphite fell, neutral red bound to the carboxylated cellulose, NAD+ to the graphite fell, and an oxidoreductase (e.g., fumarate reductase) bound to the graphite fell; or (3) a metal ion electron mediator bound to graphite. Various biocatalysts, such as an oxidoreductase, cells of Actinobacillus succinogenes, cells of Escherichia coli, and sewage sludge, are suitable for use in the electrochemical bioreactor system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.