Paul De La Pena Limited

Graham Ramsay

Anthony P Turner

Bernard H Schneider

Ann Franklin

Ann Swain

Alan P Hodges

Marco Cardosi

Davina Steel

Microbial activity in an aqueous medium is measured in a bioelectrochemical cell in which the working electrode comprises an electrically conductive carbon-bearing porous material; suitably a graphitized carbon felt or cloth. This enhances the BEC response by increasing the surface area and by absorbing microbes onto the surface; and the electrode material can also be used to preconcentrate the microbes prior to use as an electrode in the cell.

Bioelectrochemical measurement of microbial activity using a working

1,4-Benzoquinone can act as a mediator of electron transfer in bioelectrochemical cells for measuring microbiological activity in a sample. In combination with ferricyanide it can provide a surprisingly high level of mediator activity with many microorganisms, and a more even response when the sample may contain a mixture of microorganisms.

Mediators for bioelectrochemical cells to test for microbiological

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Cranfield, United Kingdom

Graham Ramsay