Immobilization support, process for producing the same, electrode, process for producing the same, electrode reaction utilizing apparatus and process for producing the same

• US 8,236,153 B2
• Filed: 02/27/2009
• Issued: 08/07/2012
• Est. Priority Date: 06/05/2003
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sato, Atsushi, Ikeda, Tokuji, Kano, Kenji
• Primary Examiner(s): Lilling, Herbert J
• Application Number:
  US12/394,730
• Publication Number:
  US 20090166194A1
• Time in Patent Office: 1,257 Days
• Field of Search: 204/403.1, 204/403.14, 205/777.5, 429/249, 429/401, 435/6.16, 435/25, 435/29, 435/177, 435/180, 435/181, 435/289.1
• US Class Current: 204/403.1
• CPC Class Codes: C12Q 1/003 Functionalisation
• CPC Class Codes: H01M 4/86 Inert electrodes with catalytic activity, e.g. for fuel cells
• CPC Class Codes: H01M 8/16 Biochemical fuel cells, i.e. cells in which microorganisms function as catalysts
• CPC Class Codes: Y02E 60/50 Fuel cells
• CPC Class Codes: Y10S 435/817 Enzyme or microbe electrode

Abstract

An immobilization carrier containing an electron acceptor compound is used in addition to glutaraldehyde and poly-L-lysine to immobilize an enzyme and an electron acceptor compound simultaneously to an electrode. For example, here are used diaphorase as the enzyme and 2-amino-3-carboxy-1, 4-naphthoquinone (ACNQ) as the electron acceptor compound.

Claims

1. An electrode comprising:

an immobilization carrier containing a first compound having at least two groups capable of polymerizing with a compound having at least one carboxyl group, and a second compound having at least one carboxyl group; and

an electron acceptor compound wherein the electron acceptor compound has at least one amino group; and

an enzyme.

2. The electrode according to claim 1, further comprising a coenzyme.

3. The electrode according to claim 2, wherein the coenzyme has at least one amino group.

4. The electrode according to claim 1, wherein the second compound has a plurality of carboxyl groups.

5. The electrode according to claim 1, wherein the compound has a plurality of carboxyl groups.

6. The electrode according to claim 1, wherein the compound and the second compound each have a plurality of carboxyl groups.