Microfluidic bubble removal device and preparation method thereof as well as microfluidic device

A bubble removal and microfluidic technology, applied in the direction of liquid degassing, separation methods, chemical instruments and methods, etc., can solve the problems of difficult application of microgravity environment and low exhaust efficiency, so as to overcome the dependence on gravity and improve exhaust Efficiency, the effect of meeting exhaust requirements

Inactive Publication Date: 2014-12-24
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of this, the present invention provides a bubble removal device and its preparation method as well as microfluidic devices to overcome the problems of low exhaust efficiency and difficulty in applying to microgravity environment in the prior art

Method used

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  • Microfluidic bubble removal device and preparation method thereof as well as microfluidic device
  • Microfluidic bubble removal device and preparation method thereof as well as microfluidic device
  • Microfluidic bubble removal device and preparation method thereof as well as microfluidic device

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Embodiment Construction

[0036] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0037] Such as figure 1 , figure 2 , image 3 As shown, the embodiment of the microfluidic bubble removal device of the present invention includes a channel bottom layer 1 and a hydrophobic porous layer 3, wherein the hydrophobic porous layer 3 is located on the channel bottom layer 1, and a channel bottom layer 1 and the hydrophobic porous layer 3 are formed. The microfluidic channel 4, the channel bottom layer 1 is located on one side of the microfluidic channel 4 and has at least one boss bar 2, the boss bar 2 is not in contact with the hydrophobic porous layer 3, the microfluid flows in the microfluidic channel 4, and the raised platform Bar 2 is disturbed due to the obstruction of boss bar 2 (such as figure 1 , figure 2 , image 3 shown ...

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Abstract

The invention discloses a microfluidic bubble removal device and a preparation method thereof as well as a microfluidic device adopting the microfluidic bubble removal device. The microfluidic bubble removal device comprises a channel bottom layer and a porous drainage layer located above the channel bottom layer, wherein a microfluidic channel is formed between the channel bottom layer and the porous drainage layer, and at least one boss strip is arranged on the side, located on the microfluidic channel, of the channel bottom layer. According to the invention, dependence of the traditional microfluidic air removal method on gravity is eliminated, the air removal efficiency can be increased, and the air removal requirement of the microfluidic device in a micro-gravity environment can be met. The microfluidic bubble removal device is integrated with other microfluidic chips easily and can remove bubbles of liquids with different viscosities.

Description

technical field [0001] The invention relates to the technical field of microfluidic chips and microfluidic devices, in particular to a microfluidic bubble removal device for microfluidic devices or chips and a preparation method thereof, and a microfluidic device using the microfluidic bubble removal device. Background technique [0002] Microfluidic chips and microfluidic devices have increasingly important applications in biomedical testing, pharmaceuticals, environmental and food safety monitoring, etc. For microfluidic devices or chips, the liquid transported in the microfluidic channel is accompanied by air bubbles due to the air bubbles caused by the liquid feeding process or the liquid itself contains air bubbles. The existence of air bubbles will directly affect the transport control, biochemical reaction and detection of liquid in the microfluidic channel. Therefore, it is necessary to discharge the air bubbles from the liquid transported in the microfluidic channel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/00B01L3/00
Inventor 叶雄英李子尚谢帅王春艳姚宇华谭映军成一诺马增帅刘跃宋晋忠
Owner TSINGHUA UNIV
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