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A stepped microfluidic droplet or bubble emulsification module

A micro-droplet, step-type technology, applied in the field of microfluidics, can solve the problems of low channel activation and interference, and achieve the effect of simple amplification.

Active Publication Date: 2022-07-08
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems in the prior art, the present invention provides a step-type microfluidic droplet or bubble emulsification module, which solves the problem that the activation degree of the channel in the step-type chip in the prior art is not high, and the downstream step channel is easily affected by the upstream during the emulsification process. Problems with generated droplet / bubble interference

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  • A stepped microfluidic droplet or bubble emulsification module
  • A stepped microfluidic droplet or bubble emulsification module
  • A stepped microfluidic droplet or bubble emulsification module

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Embodiment Construction

[0030] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] The step-type microfluidic droplet / bubble emulsification module structure of the present invention is as follows: figure 1 As shown, the dispersed phase enters the droplet / bubble emulsifier 4 in the droplet / bubble emulsification chamber 6 through the intermediate dispersed phase transport pipe 1, the continuous phase enters the droplet / bubble emulsification chamber 6 through the continuous phase transport pipe 2, and the dispersed phase The emulsification process of droplets / bubbles is completed in the droplet / bubble emulsifier 4 to generate microdroplets / bubbles. The microdroplet / bubble transport channel 5 is communicated with the droplet / bubble emulsification chamber 6, and the microdroplets generated in the droplet emulsification chamber 6 and the continuous phase in the continuous phase transport pipeline 2 flow into the microdroplet...

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Abstract

The invention discloses a step-type microfluidic droplet or bubble emulsification module, which is composed of an upper dispersed phase and continuous phase conveying pipeline, a middle droplet / bubble emulsification chamber, and a lower microdroplet / bubble conveying channel. Among them, a plurality of disc-shaped stepped droplet / bubble emulsifiers are installed in the droplet / bubble emulsification chamber. And many wedge-shaped gradually expanding stepped channels are evenly distributed on the edge of the disc-shaped emulsifier by means of annular array. The production process of droplets and bubbles only needs to switch the placement direction of the module to realize the conversion of production conditions. The droplet / bubble emulsification module can effectively solve the problem that some channels in the stepped chip are not highly activated after the number of channels is enlarged, and the downstream stepped channels are easily disturbed by the upstream droplets / bubbles during the emulsification process.

Description

technical field [0001] The invention belongs to the technical field of microfluidics, and in particular relates to a step-type microfluidic droplet or bubble emulsification module. Background technique [0002] As we all know, micro droplets / bubbles are widely used in food emulsification, drug packaging, medical testing, functional particle preparation, etc. technology field. In recent years, one of the main goals of the rapidly developing microfluidic technology is to find better ways to produce microdroplets / bubbles with controllable size and excellent monodispersity. [0003] With the continuous development of this technology, microfluidic devices have appeared in several common configurations represented by T-type, Y-type, flow-convergence type, co-flow type and stepped microchannel structure. Compared with other traditional emulsification devices that rely on the shear force and extrusion force of the continuous phase to realize the pinch-off process of the droplet / bu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01L3/00
CPCB01L3/5027
Inventor 刘子炜付涛涛马友光
Owner TIANJIN UNIV
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