Anodic reactions in microbial fuel cells

  title={Anodic reactions in microbial fuel cells},
  author={H. P. Bennetto and J. Stirling and K. Tanaka and C. Vega},
  journal={Biotechnology and Bioengineering},
Potentiometric and amperometric measurements were made with microbial fuel cells containing E. coli or yeast as the anodic reducing agent and glucose as the oxidizable substrate. The catalytic effects of thionine and resorufin on the anode reaction were investigated. Results on the potentiometry, polarization, and coulombic output of the cells support a mediator‐coupled mechanism for the transfer of electrons from the organism to the electrode in preference to a mechanism of “direct… Expand
Mediating effects of ferric chelate compounds in microbial fuel cells
Abstract The performance of bio-fuel cells containing Escherichia coli, glucose and a series of ferric chelate reagents was studies. The measured coulombic outputs indicate that the most of theExpand
Anodic electron transfer mechanisms in microbial fuel cells and their energy efficiency.
  • U. Schröder
  • Medicine, Chemistry
  • Physical chemistry chemical physics : PCCP
  • 2007
Against the sometimes confusing classifications of MFCs in literature it is demonstrated that the anodic electron transfer is always based on one and the same background: the exploitation of the necessity of every living cell to dispose the electrons liberated during oxidative substrate degradation. Expand
Micromachined microbial and photosynthetic fuel cells
This paper presents two types of fuel cells: a miniature microbial fuel cell (µMFC) and a miniature photosynthetic electrochemical cell (µPEC). A bulk micromachining process is used to fabricate theExpand
Mediated electrocatalysis at a biocatalyst electrode based on a bacterium, Gluconobacter industrius
Mediated amperometr ic enzyme electrodes use oxidoreductases as catalysts to oxidize or reduce the substrates bioelectrocatalytically in the presence of redox molecules serving as mediators [1-3]. WeExpand
Microbial Fuel Cells
Cellular life exists at the interface between electrochemical extremes. The energy of most living cells depends on the transfer of electrons from intracellular, electrically reduced biochemicals toExpand
Microbial Fuel Cells for Bioenergy and Bioproducts
Redox reactions are essential in microbial bioenergetics. Oxidation of an organic carbon and reduction of an oxidant such as oxygen, sulfate and nitrate in the cytoplasm of a microbe. ThisExpand
Electron‐transfer coupling in microbial fuel cells. 2. performance of fuel cells containing selected microorganism—mediator—substrate combinations
Various phenoxazine, phenothiazine, phenazine, indophenol and bipyridilium derivatives were tested for their effectiveness as redox mediators in microbial fuel cells containing Alcaligenes eutrophus,Expand
Dissimilatory Metal Reducers Producing Electricity: Microbial Fuel Cells
This chapter provides an introduction to the application of dissimilatory metal reducers in microbial fuel cells. In this type of fuel cells, exoelectrogenic bacteria act as anodic electrodeExpand
Microbial Fuel cell regarded as a green energy source is a manifestation of bio-electrochemical system through which electricity could be generated from organic compounds through the microbialExpand
Bioelectrochemical fuel‐cells operated by the cyanobacterium, Anabaena variabilis
Substantial electric output was delivered from the bioelectrochemical fuel-cells operated under anaerobic conditions by Anabaena variabilis strain M-2 and 2-hydroxy-1,4-naphthoquinone. There was aExpand


Electron transfer as opposed to hydrogen transfer was demonstrated to be involved in the oxidation-reduction of the flavoprotein enzyme system, demonstrating the ability of the electron-transferring process as a potential anodic reaction in a biochemical fuel cell. Expand
Role of biological agents in the oxidation of glucose on black platinum electrodes
The purpose of this paper is to bring more evidence of real participation by the microorganisms in the oxygen-glucose interaction at the black platinum electrodes. From the information obtained itExpand
Anodic Oxidation of Carbohydrates and their Derivatives in Neutral Saline Solution
The general conclusions were that the only oxidation product of glucose in these conditions is gluconic acid, which adsorbs on the electrode in the potential range −0.2 to 0.0 V (SHE), effectively inhibiting glucose oxidation. Expand
Thionine coated electrode for photogalvanic cells
The successful operation of a photogalvanic cell for solar energy conversion requires that the illuminated electrode should discriminate between the two redox couples in solution. In theExpand
Effect of Ferricyanide on Energy Production by Escherichia coli
SUMMARY: The reduction of ferricyanide by resting and actively growing Escherichia coli was studied. Under anaerobic conditions ferricyanide acted as a hydrogen acceptor for the complete oxidation ofExpand
Symposium on bioelectrochemistry of microorganisms. IV. Biochemical fuel cells.
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The reduction potentials of bacterial suspensions.
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