Biological testing strip

A test strip and biological technology, applied in the field of electrochemical analysis and clinical chemistry, can solve the problems of biological test strip sensitivity, linear response and anti-interference deterioration, easy loss of electron transfer mediators, short storage life of biological test strips, etc. , to achieve the effect of stable product size, high qualified rate of finished products, and prevention of loss
CN1461810AInactive Publication Date: 2003-12-17SHANGHAI NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI NORMAL UNIVERSITY
Publication Date
2003-12-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

A biologic testing strip is composed of a basic strip, a working electrode and a counter electrode. On said working electrode there is the envelope substance prepared from cyclodextrin, bioactive enzyme, and electron transferring medium chosen from quinone, methyl blue, methyl violet, and ferrocene or its derivatives. Its advantages are low cost, and high exchangeability and anti-interference power.
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Description

field of invention

[0001] The invention relates to the fields of electrochemical analysis and clinical chemistry. More specifically, the present invention relates to a novel biological test strip and method for its preparation. Background technique

[0002] Currently available commercially available biological test strips, such as blood glucose test strips for testing blood glucose levels, are usually produced by mixing bioactive enzymes (such as glucose dehydrogenase or glucose oxidase) with carbon paste, and then using screen printing technology. Test strips based on carbon paste electrodes (often called thick film electrodes).

[0003] However, this carbon paste electrode has some disadvantages as follows. First, the amount of enzyme used in the electrodes is higher, thus increasing the cost of the biological test strip. Second, in the electrodes prepared by the screen-printing method, the electron transfer mediators are easily lost, thereby degrading the sensitivity, ...

Claims

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