Chemistry: molecular biology and microbiology – Apparatus – Including measuring or testing
Reexamination Certificate
2007-07-31
2007-07-31
Chin, Christopher L. (Department: 1641)
Chemistry: molecular biology and microbiology
Apparatus
Including measuring or testing
C204S400000, C204S403010, C204S403040, C204S403100, C204S403140, C422S082010, C435S287200, C435S288400, C435S817000, C436S518000, C436S525000, C436S149000, C436S806000
Reexamination Certificate
active
10477273
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 ofActinobacillus succinogenes,cells ofEscherichia coli,and sewage sludge, are suitable for use in the electrochemical bioreactor system.
REFERENCES:
patent: 5126034 (1992-06-01), Carter et al.
patent: 5976719 (1999-11-01), Kim et al.
patent: 6270649 (2001-08-01), Zeikus et al.
patent: 6495023 (2002-12-01), Zeikus et al.
Park Doo Hyun
Zeikus Joseph Gregory
Board of Trustees of Michigan State University
Chin Christopher L.
McLeod Ian C.
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