Microfluidic device and driving method thereof

A technology of microfluidic devices and driving methods, applied in the field of microfluidics, capable of solving problems such as low separation efficiency and poor separation precision

Active Publication Date: 2019-07-12
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the existing microfluidic devices that separate droplets through c

Method used

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  • Microfluidic device and driving method thereof
  • Microfluidic device and driving method thereof
  • Microfluidic device and driving method thereof

Examples

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Embodiment Construction

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0028] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0029] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a microfluidic device and a driving method thereof. The microfluidic device comprises a substrate and an electrode layer positioned on one side of the substrate, and further comprises a plurality of channels, wherein the electrode layer comprises first electrodes, second electrodes and third electrodes; each channel at least comprises a first electrode, two second electrodes, a third electrode and a barrier; each barrier has a T-shaped structure and comprises a first subsection extending in the first direction and a second subsection extending in the second direction; each barrier comprises a first barrier body positioned between the corresponding first electrode and the corresponding second electrodes; the first subsection of each first barrier body is positioned between the corresponding first electrode and the corresponding second electrodes; the second subsection of each first barrier body is positioned between the two corresponding second electrodes; each third electrode extends in the first direction; the vertical projection of each third electrode in a plane where the substrate is located is positioned in the vertical projection of the first subsection of the corresponding first barrier body in the plane where the substrate is located. According to the microfluidic device, the number of the channels can be reduced effectively, and liquid drops canbe rapidly and accurately split.

Description

technical field [0001] The present invention relates to the field of microfluidics, and more specifically, to a microfluidics device and a driving method thereof. Background technique [0002] Micro-fluidic technology is a technology whose main feature is the manipulation of fluid in the micron-scale space. This technology has intersected with various disciplines such as chemistry, biology, engineering and physics, showing a wide range of application prospects. [0003] When microfluidic technology is applied to biological detection or chemical detection, in order to perform multiple chemical reactions at the same time for rapid detection, multiple droplet channels will be set in the microfluidic device. The larger space required for setting the droplet channel in the device is not conducive to the trend of lightweight design of microfluidic devices. At the same time, there are problems such as low separation efficiency and poor separation precision in the existing microfl...

Claims

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Application Information

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IPC IPC(8): B01L3/00
CPCB01L3/5027B01L3/502707B01L2200/027B01L2300/0645B01L2400/022B01L2400/0415
Inventor 周一安席克瑞林柏全秦锋李小和刘金娥
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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