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A fully transparent microfluidic chip with built-in transparent electrodes and its preparation method

A microfluidic chip, transparent electrode technology, applied in fluid controllers, chemical instruments and methods, laboratory containers, etc., can solve the problems of complex microfluidic chip technology, requiring large-scale equipment, and complicated steps, etc. Achieve the effects of excellent optical properties, simple and convenient processing, and low production cost

Active Publication Date: 2019-06-21
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technical process of making microfluidic chips by etching glass, quartz, and silicon wafers is complicated, lengthy, and the steps are cumbersome, requiring large-scale equipment, ultra-clean laboratories, and high costs.

Method used

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  • A fully transparent microfluidic chip with built-in transparent electrodes and its preparation method
  • A fully transparent microfluidic chip with built-in transparent electrodes and its preparation method
  • A fully transparent microfluidic chip with built-in transparent electrodes and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] combine figure 1 , a microfluidic chip, consisting of an acrylic plexiglass cover plate 1, a double-sided acrylate pressure-sensitive tape channel layer 2 and an indium tin oxide ITO coated glass 3, an acrylic plexiglass cover plate 1 and an indium tin oxide ITO coated glass 3 The microfluidic channel structure is formed by bonding and sealing with double-sided acrylate pressure-sensitive tape 2, wherein the double-sided acrylate pressure-sensitive tape 2 is engraved with the main microfluidic channel 4 and the side microfluidic channel 5, and the ITO coated glass On the ITO coating layer of 3, a strip structure with a width of about 50 microns is etched by laser to form a pair of transparent electrodes 6 with a distance of 50 microns. The acrylic plexiglass cover plate 1 has a sample inlet 7 and a first sample outlet. 8 and the second sample outlet 9, respectively corresponding to the tail end of the main microfluidic channel 4 and the tail end of the side microfluidic...

Embodiment 2

[0023] Example 2: Phosphor particle control chip

[0024] combine Figure 2 ~ Figure 4 :

[0025] Such as figure 2 As shown, the fluorescent particle control chip is composed of an acrylic plexiglass cover plate 1 , a double-sided acrylate pressure-sensitive tape 2 and an indium tin oxide ITO coated glass 3 . The acrylic plexiglass cover plate 1 and the indium tin oxide ITO coated glass 3 are bonded by a double-sided acrylate pressure-sensitive adhesive tape 2 and then sealed to form a microfluidic channel structure. The main microfluidic channel 4 and the side microfluidic channel 5 are cut on the double-sided acrylate pressure-sensitive tape, the angle formed by the main microfluidic channel 4 and the side microfluidic channel 5 is 90°, the main microfluidic channel The width of the side microfluidic channel is 240 microns, the width of the side microfluidic channel is 120 microns, and the depth of the channel is 76 microns.

[0026] The channel layer of the double-side...

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Abstract

The invention discloses a full-transparent microfluidic chip with a built-in transparent electrode and a preparation method of the full-transparent microfluidic chip, and belongs to the technical field of microfluidic chips. The full-transparent microfluidic chip consists of ITO (Indium tinoxide) coated glass, an acrylate double-sided pressure-sensitive adhesive tape channel layer and an acrylic organic glass cover plate sequentially from bottom to top, wherein the double-sided pressure-sensitive adhesive tape channel layer is of a microfluidic channel structure; the microfluidic channel consists of a main microfluidic channel and a side microfluidic channel which are in mutual communication; an electrode pair or a circuit structure is arranged on an ITO coated layer of the ITO coated glass on the bottom surface of the junction between the main microfluidic channel and the side microfluidic channel; the ITO coated layer and the acrylic organic glass cover plate are bonded by the acrylate double-sided pressure-sensitive adhesive tape to form the full-transparent microfluidic chip. The microfluidic chip disclosed by the invention is full-transparent, has excellent optical performance and is convenient for microscopic observation. The chip has the advantages of low processing cost, short production cycle and high yield and has a broad application prospect in the fields such as fluid real-time monitoring, biomedicine rapid detection, microreaction, microfluid mixing and transportation.

Description

technical field [0001] The invention belongs to the technical field of microfluidic chips, and in particular relates to a fully transparent microfluidic chip with a built-in indium tin oxide (ITO) transparent electrode and a preparation method thereof. Background technique [0002] Microfluidics refers to the science and technology involved in the use of micropipes (a few microns to hundreds of microns in size) to process or manipulate tiny fluids (microliters to attic liters in volume), and is a discipline involving chemistry, fluid mechanics, Emerging interdisciplinary disciplines of microelectronics, new materials, biology and biomedical engineering. Because of the characteristics of miniaturization and integration, microfluidic devices are usually called microfluidic chips, also known as lab-on-a-chip (LOC) and micro-total analysis system (micro-Total). Analytical System, μTAS). One of the important features of microfluidics is to use the unique properties and phenomen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01L3/00
CPCB01L3/502707B01L3/502761B01L2200/12B01L2300/0645B01L2300/0887B01L2400/0415
Inventor 杨方李桂英
Owner JILIN UNIV
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