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Array microelectrode, preparation method thereof and ultrasonic device

A micro-electrode and array technology, applied in the field of micro-electrodes, can solve the problems of high requirements for operation and slurry fluid, high requirements for slurry fluid, poor customization, etc., to reduce process conditions and operation requirements, low cost and stable quality Effect

Inactive Publication Date: 2022-05-24
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide an array microelectrode and its preparation method, which aims to solve the technical problems of high cost, poor customization and high requirements for slurry fluid in the existing microelectrode preparation method
[0005] Another object of the present application is to provide an ultrasonic device for preparing array microelectrodes, to overcome the technical problems of high cost and high requirements for operation and slurry fluid caused by existing devices for preparing microelectrodes

Method used

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  • Array microelectrode, preparation method thereof and ultrasonic device
  • Array microelectrode, preparation method thereof and ultrasonic device
  • Array microelectrode, preparation method thereof and ultrasonic device

Examples

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preparation example Construction

[0026] Embodiments of the present application provide a method for preparing an array microelectrode. combine Figure 1 and Figure 2 , the preparation method of the present application embodiment array microelectrode comprising the following steps:

[0027] S01: The fluid composition is placed in the insulating carrier 01, the insulating carrier 01 contains a cavity 11, the fluid composition is encased in the cavity 11;

[0028] S02: Ultrasonic waves are applied on opposite sides of the fluid composition, and a standing wave acoustic pressure field is formed in the fluid composition, so that the electrode particle material contained in the fluid composition tendentiously moves to the sound pressure node;

[0029] S03: The fluid composition of the electrode particle material tendentiously moved to the acoustic pressure node is cured to obtain an array of microelectrodes.

[0030] Wherein, the insulating carrier 01 may be Figure 2 (1) in Figure sum Figure 3 The following text shown r...

Embodiment 1

[0054] The present embodiment provides a method for preparing an array microelectrode and a corresponding ultrasonic device. Wherein, the ultrasound device such as Figure 2 and Figure 3 The above application shown in the application ultrasonic apparatus of the embodiment.

[0055] The preparation method of array microelectrodes comprises the following steps:

[0056] S1: The use of 3D printing technology to construct a polymethyl methacrylate insulating carrier 01, the insulating carrier 01 is provided with a cavity 11 for carrying the fluid composition, the cavity 11 structure such as Figure 2 (1) as shown in FIG.; and lay an insulating substrate 14 on the bottom 13 surface of the cavity 11;

[0057] S2: The piezoelectric transducer 21 is pasted on both sides of the wall 12 of the cavity 11 by conductive glue as an ultrasonic emitter end, such as Figure 2 (2) shown in the figure, piezoelectric transducer 21 are in series signal generator 22 (waveform generator) and power amplifie...

Embodiment 2

[0065] The present embodiment provides a method for preparing an array microelectrode and a corresponding ultrasonic device. Wherein, the ultrasound device such as Figure 2 and Figure 3 The above application shown in the application ultrasonic apparatus of the embodiment.

[0066] Array microelectrode preparation method as in the above example 1 preparation method. The differences are:

[0067] The fluid composition in step S3 is to dilute the polydimethylsiloxane, the temperature curing agent and the gold nanoparticles mixed with ultrapure water, and the mixture is uniformly removed to prepare the bubbles to obtain, the mass ratio of the polydimethylsiloxane, the temperature curing agent and the gold nanoparticles is 100: 10: 2;

[0068] Step S4 Input Ultrasonic Frequency Control is 230 kHz and Voltage is 30 V;

[0069] It has been measured that the array spacing of the microelectrode wire containing the flexible array microelectrode 3 prepared by the present embodiment is 3500μm, ...

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Abstract

The invention discloses an array microelectrode, a preparation method thereof and an ultrasonic device for preparing the array microelectrode. The preparation method of the array microelectrode comprises the steps that a fluid composition is placed in an insulating carrier, the insulating carrier comprises a cavity, and the fluid composition is contained in the cavity; ultrasonic waves are applied to the two opposite sides of the fluid, and a standing wave sound pressure field is formed in the fluid composition, so that the electrode particle material tends to move to a sound pressure node; and curing the fluid composition which tends to move the electrode particle material to the sound pressure node to obtain the array microelectrode. The ultrasonic device comprises an insulating carrier for containing a fluid composition and an ultrasonic wave generating unit for providing ultrasonic waves for the fluid composition.

Description

Technical field [0001] The present application belongs to the technical field of microelectrodes, particularly involving an array of microelectrodes and preparation methods thereof and ultrasonic devices. Background [0002] Electrochemical sensors are simple to use and easy to miniaturize, widely used in various biochemical detection, with high sensitivity, fast response speed and other advantages, has been in the nucleic acid detection, biological signal monitoring and other biochemical detection, clinical medical diagnosis and other fields play an important role. The electrodes of electrochemical sensors play an important role in promoting biochemical reactions and physical and chemical signal transmission, and determine the sensing performance and application scenarios of the sensor. [0003] At present, the electrochemical sensor parts are widely dependent on the traditional disposable platinum, carbon, gold electrodes, etc., and their preparation methods mainly rely on scre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B81C1/00B01J19/10G01N27/30B82Y15/00B82Y40/00
CPCB81C1/00119B01J19/10G01N27/30B82Y15/00B82Y40/00
Inventor 许太林罗勇范宇婷张学记
Owner SHENZHEN UNIV
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