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PDMS microfluidic chip secondary pouring device

A microfluidic chip, secondary pouring technology, applied in laboratory utensils, laboratory containers, chemical instruments and methods, etc., can solve the problem that the PDMS chip cannot be clear

Active Publication Date: 2021-09-10
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention mainly aims at the problem that the PDMS chip of the traditional microfluidic device cannot be clearly observed from the side with an optical microscope. Afterwards, the PDMS lower bottom plate and the PDMS upper layer model with channels are bonded together to form a closed microfluidic channel chip

Method used

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  • PDMS microfluidic chip secondary pouring device
  • PDMS microfluidic chip secondary pouring device
  • PDMS microfluidic chip secondary pouring device

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Embodiment Construction

[0026] How this device realizes secondary pouring will be described in further detail below in conjunction with the structural drawings.

[0027] It can be seen from the structural drawings that the basic components of this device include 1. Right-angle baffle 2. T-shaped bracket 3. Trapezoidal baffle 4. Glass plate 5. Movable wall 6. Bottom plate 7. Side sliding guide rails and other seven parts,

[0028] First, cut and bond the PDMS device according to the normal operation, place the bonded microchannel horizontally in the secondary pouring device, fix the device, and then pour the fully mixed liquid PDMS solution into the device for the second time, and place the channel Wrap it completely around, put it in a heating box to heat or let it stand to solidify and form.

[0029] The operation process and details are as follows. There is a sliding guide rail 7 that can move along the side on the bottom plate 6. The whole device can be fixed front and rear by the sliding guide ra...

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Abstract

The invention discloses a secondary pouring device for PDMS microfluidic chips. By cutting the cured PDMS chip, the PDMS lower floor model after curing without any channel and the PDMS upper layer model with channels are bonded together to form an airtight The microfluidic channel chip is placed on the patented Fangming device, poured into liquid PDMS, and then solidified by heating or standing. At this time, the side of the channel can be used for three-dimensional observation. This process can be applied to the research field of microchannel three-dimensional flow field visualization related to microchannel technology controllable droplet generation.

Description

technical field [0001] The invention relates to a new type of microfluidic chip processing technology, which can carry out secondary pouring of the bonded PDMS microfluidic chip, so that the irregular plane caused by the cutting on the side of the PDMS chip becomes smooth, and it is convenient to use it from the top and the side. Visual observation of the three-dimensional flow field of the fluid inside the channel belongs to the related research field of microchannel droplet manipulation technology. Background technique [0002] Droplet microfluidic chip technology plays an important scientific and technological role in various applications such as chemical engineering, environment, and energy. In recent years, microdispersed liquid / liquid systems have attracted many researchers to study their controllable flow and efficient transport properties. The development of microfluidic systems, which enable the formation of microdroplets inside microfluidic devices, has received e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01L3/00
CPCB01L3/502707B01L2200/10B01L2300/12
Inventor 申峰代建峰刘赵淼
Owner BEIJING UNIV OF TECH