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Title: Electrochemical methods for generation of a biological proton motive force and pyridine nucleotide cofactor regeneration

Abstract

Disclosed are methods using neutral red to mediate the interconversion of chemical and electrical energy. Electrically reduced neutral red has been found to promote cell growth and formation of reduced products by reversibly increasing the ratio of the reduced:oxidized forms of NAD(H) or NADP(H). Electrically reduced neutral red is able to serve as the sole source of reducing power for microbial cell growth. Neutral red is also able to promote conversion of chemical energy to electrical energy by facilitating the transfer of electrons from microbial reducing power to a fuel cell cathode.

Inventors:
 [1];  [2]
  1. Okemas, MI
  2. Seoul, KR
Issue Date:
Research Org.:
Michigan State University (East Lansing, MI)
OSTI Identifier:
873909
Patent Number(s):
6270649
Assignee:
Michigan State University (East Lansing, MI)
Patent Classifications (CPCs):
C - CHEMISTRY C12 - BIOCHEMISTRY C12N - MICROORGANISMS OR ENZYMES
C - CHEMISTRY C12 - BIOCHEMISTRY C12Q - MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS
DOE Contract Number:  
FG02-93ER20108
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
electrochemical; methods; generation; biological; proton; motive; force; pyridine; nucleotide; cofactor; regeneration; disclosed; neutral; mediate; interconversion; chemical; electrical; energy; electrically; reduced; found; promote; cell; growth; formation; products; reversibly; increasing; ratio; oxidized; forms; nad; nadp; serve; sole; source; reducing; power; microbial; conversion; facilitating; transfer; electrons; fuel; cathode; cell growth; fuel cell; chemical energy; electrical energy; electrochemical method; sole source; cell cathode; motive force; microbial cell; chemical method; oxidized form; /205/

Citation Formats

Zeikus, Joseph G, and Park, Doo. Electrochemical methods for generation of a biological proton motive force and pyridine nucleotide cofactor regeneration. United States: N. p., 2001. Web.
Zeikus, Joseph G, & Park, Doo. Electrochemical methods for generation of a biological proton motive force and pyridine nucleotide cofactor regeneration. United States.
Zeikus, Joseph G, and Park, Doo. Mon . "Electrochemical methods for generation of a biological proton motive force and pyridine nucleotide cofactor regeneration". United States. https://www.osti.gov/servlets/purl/873909.
@article{osti_873909,
title = {Electrochemical methods for generation of a biological proton motive force and pyridine nucleotide cofactor regeneration},
author = {Zeikus, Joseph G and Park, Doo},
abstractNote = {Disclosed are methods using neutral red to mediate the interconversion of chemical and electrical energy. Electrically reduced neutral red has been found to promote cell growth and formation of reduced products by reversibly increasing the ratio of the reduced:oxidized forms of NAD(H) or NADP(H). Electrically reduced neutral red is able to serve as the sole source of reducing power for microbial cell growth. Neutral red is also able to promote conversion of chemical energy to electrical energy by facilitating the transfer of electrons from microbial reducing power to a fuel cell cathode.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}

Works referenced in this record:

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Biochemical route and control of butyrate synthesis in Butyribacterium methylotrophicum
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Mediator compounds for the electrochemical study of biological redox systems: a compilation
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Microbial Utilization of Electrically Reduced Neutral Red as the Sole Electron Donor for Growth and Metabolite Production
journal, July 1999


Electrochemical studies on fermentation. II. Determination of electro-energizing conditions for L-glutamic acid fermentation.
journal, January 1979


Electron-transfer coupling in microbial fuel cells. 2. performance of fuel cells containing selected microorganism-mediator-substrate combinations
journal, March 1984


Reduction of nitrate and nitrite in water by immobilized enzymes
journal, February 1992


Electricity Generation in Microbial Fuel Cells Using Neutral Red as an Electronophore
journal, April 2000