Direct electron transfer using enzymes in bioanodes,...

Details Direct electron transfer using enzymes in bioanodes,... Direct electron transfer using enzymes in bioanodes,...

H - Electricity

01

M

H01M 4/90 (2006.01) C12N 11/00 (2006.01) H01M 8/16 (2006.01)

Patent

CA 2627650

Bioanodes, biocathodes, and biofuel cells comprising an electron conductor, at least one anode enzyme or cathode enzyme, and an enzyme immobilization material. The anode enzyme is capable of reacting with a fuel fluid to produce an oxidized form of the fuel fluid, and capable of releasing electrons to the electron conductor. The cathode enzyme is capable of reacting with an oxidant to produce water, and capable of gaining electrons from the electron conductor. The enzyme immobilization material for both the anode enzyme and the cathode enzyme is capable of immobilizing and stabilizing the enzyme, and is permeable to the fuel fluid and/or the oxidant.

L'invention concerne des bioanodes, des biocathodes et des piles à biocombustible comprenant un conducteur d'électrons, au moins une enzyme anodique ou cathodique, et une substance permettant d'immobiliser des enzymes. L'enzyme anodique est capable de réagir avec un fluide combustible pour produire une forme oxydée du fluide combustible, et capable de fournir des électrons au conducteur d'électrons. L'enzyme cathodique est capable de réagir avec un oxydant pour produire de l'eau, et capable d'accepter des électrons fournis par le conducteur d'électrons. La substance permettant d'immobiliser des enzymes pour l'enzyme anodique et l'enzyme cathodique est capable d'immobiliser et de stabiliser l'enzyme, et est perméable au fluide combustible et/ou à l'oxydant.

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