Biosensor
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsShoji Miyazaki, Hiroyuki Tokunaga, Masaki Fujiwara, Takahiro Nakaminami, Junko Nakayama, Eriko Yamanishi
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Abstract
In a biosensor for measuring a specific substance in a liquid sample, one or a combination of sugar alcohol, metallic salt, organic acid or organic acid salt which has at least one carboxyl group in a molecule, and organic acid or organic acid salt which has at least one carboxyl group and one amino group in a molecule, is included in a reagent layer provided on electrodes, thereby providing a highly-accurate biosensor which is excellent in stability and has high response (sensitivity, linearity) of the sensor to the substrate concentration.
Claims12
A biosensor for measuring the concentration of a specific substance in a sample solution, wherein
- at least one type of sugar alcohol selected from the group consisting of maltitol and lactitol is included in a previously-provided reagent layer so that it is dissolved in the sample solution and specifically reacts to the specific substance in the sample solution.
A biosensor for measuring the concentration of a specific substance in a sample solution, wherein
- organic acid or organic acid salt which has at least one carboxyl group and one amino group in its molecule is included in a previously-provided reagent layer so that it is dissolved in the sample solution and specifically reacts to the specific substance in the sample solution.
A biosensor for measuring the concentration of a specific substance in a sample solution, wherein
- a combination of at least two of at least one type of sugar alcohol selected from the group consisting of maltitol and lactitol, and organic acid or organic acid salt which has at least one carboxyl group and one amino group in its molecule, is included in a previously-provided reagent layer so that it is dissolved in the sample solution and specifically reacts to the specific substance in the sample solution.
Dependencies are inferred from the claim text.