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Microelectrode system having double-spiral structure, electrochemical sensor and preparation method of the microelectrode system having double-spiral structure

A double-helix structure and micro-electrode technology, applied in the field of electrochemical detection, can solve the problems of the stability of the response of the sample to be tested, the uneven edge of the diffusion field, etc., and achieve the effect of rapid electronic exchange, improved stability, and improved response signal

Active Publication Date: 2012-09-26
INST OF ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

[0005] In the process of realizing the present invention, the applicant realizes that the following technical defects exist in the prior art: the electric field generated by the electrochemical detector microelectrode system adopting the interdigitated microelectrode array is discontinuously distributed, and the edge of the diffusion field is not Uniform, the response stability of the sample to be tested will be affected

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  • Microelectrode system having double-spiral structure, electrochemical sensor and preparation method of the microelectrode system having double-spiral structure
  • Microelectrode system having double-spiral structure, electrochemical sensor and preparation method of the microelectrode system having double-spiral structure
  • Microelectrode system having double-spiral structure, electrochemical sensor and preparation method of the microelectrode system having double-spiral structure

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[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0027] In an exemplary embodiment of the present invention, a double helix microelectrode system for electrochemical detection is provided. The microelectrode system includes: an insulating substrate; and a first electrode and a second electrode formed on the insulating substrate and insulated from each other, the first electrode and the second electrode are in a spiral shape, and the two are nested to form a double helix structure .

[0028] The double-helix electrode structure of the microelectrode system in this embodiment can provide continuous electric field distribution, which is different from the intermittent electric field distribution of general interdigitated array electrodes, thereby improving the stability of...

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Abstract

The invention discloses a microelectrode system having a double-spiral structure, an electrochemical sensor and a preparation method of the microelectrode system having a double-spiral structure. The microelectrode system having the double-spiral structure is used for electrochemical detection and comprises an insulating substrate, a first electrode and a second electrode, wherein the first electrode and the second electrode are arranged on the insulating substrate; the first electrode and the second electrode have spiral shapes, are electrically isolated from each other and are nested with each other thereby forming the double-spiral structure. The microelectrode system having the double-spiral structure can provide continuous field distribution thereby improving the response stability in electrochemical measurement.

Description

technical field [0001] The invention relates to the technical field of electrochemical detection, in particular to a microelectrode system with a double helix structure, an electrochemical sensor and a preparation method thereof. Background technique [0002] With the development of MEMS technology, sensors are increasingly developing in the direction of miniaturization and miniaturization. Due to the advantages of easy miniaturization, high sensitivity and good selectivity, electrochemical sensors and detection systems are often used to develop miniaturized biochemical sensors and detection instruments. [0003] The electrode system is the core component of electrochemical sensors and detection instruments. In the electrode system, the microelectrode has excellent electrochemical characteristics such as high mass transfer rate, high current density, and fast response. However, due to the miniaturization of the electrode, the area of ​​the electrode sensitive surface is gr...

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Application Information

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IPC IPC(8): G01N27/30
Inventor 夏善红薛茜男边超佟建华孙楫舟张虹李洋白银卞贺明
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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