Pt nano flower micro needle type enzyme-free glucose sensor electrode and preparation method thereof

A glucose sensor and nanoflower technology, applied in the field of biosensors, can solve the problems of low binding force, low activity of inert electrodes, easy to fall off, etc., and achieve the effects of improved stability, favorable performance and good electrocatalytic performance.
CN103257166AInactive Publication Date: 2013-08-21TAIYUAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TAIYUAN UNIV OF TECH
Publication Date
2013-08-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a Pt nano flower micro needle type enzyme-free glucose sensor electrode and a preparation method thereof. The electrode is characterized by being composed of a pt nano flower, wherein average length of single pedal is 100nm-200nm, and average width of single pedal is 50nm-100nm. The Pt nano flower micro needle type enzyme-free glucose sensor electrode is prepared by using an ultrasonic intermittent constant potential electrolytic deposition method, the preparation method is simple in process, the reaction conditions are easy to control, and the binding force between the Pt nano flower and the needle electrode is strong. The preparation method has the advantage that the enzyme-free glucose sensor electrode can be formed on the micro needle electrode surface, wherein the electrode has better electrocatalytic oxidation performance to the glucose, and the formed micro needle type enzyme-free glucose sensor has a wide linearity range, high response sensitivity, low detection limit and high stability for the glucose, and has better application foreground in the aspect of implanted glucose sensors.
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Description

technical field

[0001] The invention relates to the field of biosensors, in particular to a Pt nanoflower micro-needle enzyme-free glucose sensor electrode and a preparation method thereof. Background technique

[0002] Continuous blood glucose monitoring has important clinical significance for the treatment of diabetic patients and the screening of early childhood diabetes. However, invasive blood glucose detectors cannot continuously monitor blood glucose concentration. The existing dynamic blood glucose detection system uses glucose oxidase as a sensitive substance. The enzyme is easily inactivated and denatured during immobilization and use, which leads to the stability of the sensor The second is that the amount of immobilized enzyme and the influence on the enzyme activity during the immobilization process cannot be accurately controlled, so that the repeatability of the prepared sensor cannot be guaranteed. In the long-term clinical practice of the existing blood glu...

Claims

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