Chemistry: electrical and wave energy – Apparatus – Electrolytic
Reexamination Certificate
2006-08-04
2010-11-16
Nguyen, Nam X (Department: 1795)
Chemistry: electrical and wave energy
Apparatus
Electrolytic
C435S026000
Reexamination Certificate
active
07833397
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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Ajinomoto Co. Inc.
Ball J. Christopher
Foley & Lardner LLP
Nguyen Nam X
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