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Non-invasive flexible sensor for detecting dopamine

A flexible sensor, non-invasive technology, applied in the field of biochemical sensing, can solve the problem of high cost of precious metals, and achieve the effect of reducing power consumption and cost of devices

Inactive Publication Date: 2019-07-12
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because this kind of OECT sensor based on noble metal gate electrode is often used as a one-time detection application, although its detection limit and sensitivity can achieve relatively ideal results, the high cost of noble metal used in the gate electrode will limit its application.

Method used

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  • Non-invasive flexible sensor for detecting dopamine
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  • Non-invasive flexible sensor for detecting dopamine

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Embodiment Construction

[0050] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0051] In a first aspect of the present invention there is provided a non-invasive sensor for detecting the amount of dopamine in a bodily fluid, said sensor comprising:

[0052] Organic electrochemical transistors (OECTs) with gate electrodes based on carbon materials;

[0053] Wherein, the base surface of the gate electrode is modified with nanometer materials to increase the sensitivity of the gate electrode.

[0054] Wherein, the base surface of the gate electrode is modified with a polymer to increase the selectivity of the gate electrode.

[0055] The base of the gate electrode may be carbon s...

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Abstract

The invention discloses a non-invasive flexible sensor for detecting dopamine and a preparation method thereof, and relates to the technical field of biochemical sensing. The flexible sensor comprisesan organic electrochemical transistor having a carbon material-based gate electrode; the surface of a substrate of the gate electrode is modified by using a nanomaterial to increase the sensitivity of the gate electrode; and the surface of the substrate of the gate electrode is modified by using a polymer to increase the selectivity of the gate electrode. According to the flexible sensor, a carbon material is used as the gate electrode of a dopamine sensor of the organic electrochemical transistor, so that the cost is reduced; and the dopamine sensor of the organic electrochemical transistorworks under low gate electrode voltage, so that the power consumption of the device is reduced.

Description

technical field [0001] The invention relates to the technical field of biochemical sensing, in particular to a non-invasive flexible sensor for detecting dopamine. Background technique [0002] Organic electrochemical transistor (OECT) has been extensively studied in the field of biochemical sensing due to its low operating voltage, simple structure, and ability to work in aqueous solutions. After the first OECT report based on polypyrrole in 1984, OECT based on several different conductive polymers was also reported one after another, and OECT also showed a wide range of applications in the field of biochemical sensing, involving humidity sensing, ion sensing, glucose Sensing, cell sensing, etc. The conductive polymer PEDOT:PSS has very important applications in the field of organic electronics (solar cells, OTFTs) due to its high conductivity and solution-process compatibility. In recent years, PEDOT:PSS has been successfully used as an OECT channel layer, and this devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26G01N27/30G01N27/327
CPCG01N27/26G01N27/30G01N27/3278
Inventor 刘瑞丽纪伟吴东清唐伟郭小军
Owner SHANGHAI JIAO TONG UNIV
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