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A pipe-shaped microfluidic device based on the principle of electrowetting and its preparation method

A microfluidic and electrowetting technology, applied in the field of microfluidics, can solve the problems of low liquid driving force, low integration, and single function, and achieve the effects of increasing control ability, realizing precise control, and simplifying the manufacturing process

Inactive Publication Date: 2019-07-09
FUDAN UNIV
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  • Description
  • Claims
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Problems solved by technology

The electrowetting technology on the medium changes the wettability of the liquid droplets on the surface of the medium by voltage to manipulate the liquid. low driving force

Method used

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  • A pipe-shaped microfluidic device based on the principle of electrowetting and its preparation method
  • A pipe-shaped microfluidic device based on the principle of electrowetting and its preparation method
  • A pipe-shaped microfluidic device based on the principle of electrowetting and its preparation method

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Embodiment Construction

[0027] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, and are not intended to limit the protection scope of the present invention.

[0028] The pipe-shaped microfluidic device based on the principle of electrowetting on the dielectric layer provided by the present invention realizes precise and effective manipulation of the liquid through structural design and drive signal control, so it can be configured in a variety of ways, and can be configured in Various microfluidic chips.

[0029] The structure schematic diagram (longitudinal sectional view) of the pipe-shaped microfluidic device based on the principle of electrowetting on the dielectric layer of the present invention is as follows figure 1 As shown, the microfluidic device includes a tubular channel arranged on a substrate 100, and the tubular channel is stacked sequent...

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Abstract

The invention discloses a tubular micro-fluidic device based on electro-wetting principle and a preparation method thereof. The micro-fluidic device comprises a tubular channel arranged on a substrate; the tubular channel is formed by curling a film stacking structure formed by sequentially stacking a substrate layer, an electrode layer, a dielectric layer and a hydrophobic layer from bottom to top; and the inside of the tubular channel serves as a liquid transfer passage, and openings at two ends of the tubular channel respectively serve as a liquid inlet and a liquid outlet. By virtue of an electrode structure distributed around the inner wall of a tube, the control capability of the device to liquid is improved, and the applicability is expanded; the device has the characteristics of novel design, easy preparation, simple control, high degree of automation, high output precision, and the like; and the ranges of application of the micro-fluidic technology and the on-site rapid detection technology are greatly expanded.

Description

technical field [0001] The invention belongs to the field of microfluidic technology, and relates to a microfluidic technology based on the principle of electrowetting on a medium layer and a liquid movement process, in particular to a pipe-shaped microfluidic device based on the principle of electrowetting. Background technique [0002] Lab-on-a-chip can be simply defined as a miniaturized and integrated micro-electro-mechanical system that can complete various processes of biochemical processing and automatically complete traditional laboratory functions. Its goal is to integrate a complete analysis process on a single device, with high integration High-precision, high-precision, low-consumption, intelligent and other advantages, it has very good prospects in many fields such as biology and chemistry. [0003] As the power part of lab-on-a-chip, microfluidic technology plays an important role. The electrowetting technology on the medium changes the wettability of the liqu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01L3/00
CPCB01L3/5027B01L2300/0832
Inventor 王伟周嘉
Owner FUDAN UNIV
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