Title:
アミノ酸バイオセンサー、フィッシャー比バイオセンサー、及び健康情報管理システム
Document Type and Number:
Japanese Patent JP4711229
Kind Code:
B2
Abstract:
Disclosed is a biosensor capable of measuring a total concentration of plural types of amino acids. An amino-acid biosensor (200) for measuring a total concentration of a plurality of specific amino acids, comprises a measuring electrode (202) which includes as components a mediator and an enzyme which selectively act on the plurality of specific amino acids each serving as a substrate, and a counter electrode (203). The enzyme has a substrate affinity to each of the plurality of specific amino acids. The enzyme is operable to catalyze a reaction in each of the plurality of specific amino acids as a substrate so as to form a reaction product, and the mediator is operable, during amino-acid concentration measurement, to carry electrons between the reaction product and the measuring electrode. The amino-acid biosensor is designed to apply a voltage between the measuring electrode and the counter electrode during the measurement in such a manner that, in an analytical curve representing a relationship between an applied voltage and a current value for each of the plurality of specific amino acids, the applied voltage includes a voltage allowing the variety of the current values for the amino acids at the same applied voltage to fall within a given range.
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Inventors:
Eiichiro Kimura
Application Number:
JP2005517771A
Publication Date:
June 29, 2011
Filing Date:
February 07, 2005
Export Citation:
Assignee:
AJINOMOTO CO.,LTD.
International Classes:
G01N27/416; A61B5/00; C12M1/34; C12Q1/32; G01N27/27; G01N27/327
Domestic Patent References:
| JPH04125461A | 1992-04-24 | |||
| JPS63226299A | 1988-09-20 | |||
| JP2003194769A | 2003-07-09 | |||
| JP2003310560A | 2003-11-05 |
Foreign References:
| WO2002018627A1 | 2002-03-07 |
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Naoki Kondo
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Naoki Kondo