Engineered electrode for electrobiocatalysis and process to construct the same

a biocatalysis and electrode technology, applied in the field of bioelectrochemical systems, can solve the problems of biofilm stability on the electrode, less attractive appearance, and system like microbial electro-synthesis
US20200131650A1Pending Publication Date: 2020-04-30INDIAN OIL CORPORATION
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
INDIAN OIL CORPORATION
Publication Date
2020-04-30

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Abstract

The present disclosure provides a ready-to-use bio-electrode stable for long term storage and a process of constructing the same. The process for construction of bio-electrode for electro-biocatalysis comprising of: selection of an electro-active bacteria; enrichment of said electro-active bacteria in a nutrient rich medium; separation of said electro-active bacterial cells from said nutrient rich medium; selection of an electrode material; surface modification of said electrode material; layering the surface modified electrode material with conductive material; layering the surface modified electrode material with an electro-active bacterial cells along with biofilm inducing agents and stabilizing agents; conditioning the electro-active bacterial cells layered electrode; incubating the electrode obtained with an immobilizing agent along with conductive material; and conditioning the electrode with micronutrients to obtain a bio-electrode.
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Description

FIELD OF THE INVENTION

[0001] The present disclosure relates to the field of bio-electrochemical system. In particular, the present disclosure provides a ready-to-use bio-electrode stable for long term storage and a process of constructing the same.BACKGROUND OF THE INVENTION

[0002] Bio-electrochemical System (BES) relies on the interaction of electro-active microbes with electrodes. Electro-active microbes form a biofilm on the electrode and directly or indirectly transfer electrons to convert chemical energy to electricity or vice versa using inorganic / organic source of carbon. The natural formation of an electro-active biofilm, with stable current consumption / production entails prolonged conditioning periods, as long as several weeks to months, depending upon the nature of electrodes, and bacterial physiology. This long duration for production of biofilm makes the BES less attractive. Moreover, a system like microbial electro-synthesis where CO2 is converted to organic chemicals, suf...

Claims

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