JPS6468651A - Electrochemical biosensor - Google Patents
Electrochemical biosensorInfo
- Publication number
- JPS6468651A JPS6468651A JP62225169A JP22516987A JPS6468651A JP S6468651 A JPS6468651 A JP S6468651A JP 62225169 A JP62225169 A JP 62225169A JP 22516987 A JP22516987 A JP 22516987A JP S6468651 A JPS6468651 A JP S6468651A
- Authority
- JP
- Japan
- Prior art keywords
- coupling agent
- enzyme
- sno2
- sensor
- oxidation reduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To obtain a sensor which exhibits a good detection characteristic for organism components and has high sensitivity and preservable stability by using a conductive oxide consisting of SnO2 as an electrode and fixing enzyme by covalent bond via a coupling agent to the surface thereof. CONSTITUTION:The sensor electrode is formed of an insulating base 1, a conductive SnO2 layer 2, a coupling agent layer 3 and oxidation reduction enzyme 4. The enzyme 4 is fixed by treating the surface of the SnO2 with a strong acid to hydroxylate the same and treating the surface with the coupling agent, then chemically bonding the terminal of the coupling agent to the surface. Glucose is used as a substrate and the electrode potential is set at the potential corresponding to the oxidation reduction potential of the enzyme reaction product of the substrate, then the oxidation reduction current is measured under a potentiostatic condition. As a result, the good detection characteristic proportional to the concn. of the glucose is obtd. The sensor which exhibits the good detection characteristic to the organism components and has the high sensitivity and preservable stability is thereby obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62225169A JPS6468651A (en) | 1987-09-10 | 1987-09-10 | Electrochemical biosensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62225169A JPS6468651A (en) | 1987-09-10 | 1987-09-10 | Electrochemical biosensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6468651A true JPS6468651A (en) | 1989-03-14 |
Family
ID=16825024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62225169A Pending JPS6468651A (en) | 1987-09-10 | 1987-09-10 | Electrochemical biosensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6468651A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007535670A (en) * | 2004-05-01 | 2007-12-06 | マイクロアレイ リミテッド | Microelectrode array |
CN102023181A (en) * | 2009-09-21 | 2011-04-20 | 清华大学 | Enzyme electrode and preparation method thereof |
-
1987
- 1987-09-10 JP JP62225169A patent/JPS6468651A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007535670A (en) * | 2004-05-01 | 2007-12-06 | マイクロアレイ リミテッド | Microelectrode array |
CN102023181A (en) * | 2009-09-21 | 2011-04-20 | 清华大学 | Enzyme electrode and preparation method thereof |
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