A microfluidic channel for gathering non-spherical microswimming bodies and a filtering method

Abstract

The invention relates to a microfluidic pipeline for gathering non-spherical micro-swimming bodies and a filtering method, which relate to the field of microfluidics, in particular to a microfluidic pipeline for gathering non-spherical micro-swimming bodies and a filtering method, including a microfluidic pipeline body, The body of the microfluidic pipeline is provided with an expansion tube for forming an expansion flow field; the expansion tube includes a head end expansion tube connection section and an end connection section; the two ends of the expansion tube pass through the head end expansion tube connection section and the end connection section respectively. The connecting section at the end communicates with the body of the microfluidic pipeline located on both sides of the expansion tube; along the direction of fluid flow, the cross section of the connecting section at the head end expands continuously. The invention has a simple structure, uses the expansion tube connected to the body of the microfluidic pipeline and is used to form an expansion flow field, so that the micro-swimming body in the fluid is enriched in the expansion tube, which is beneficial to the collection or filtration of the micro-swimming body .

Description

A microfluidic channel for gathering non-spherical microswimmers and a filtering method technical field The present invention relates to microfluidic field, be specifically related to a kind of microfluidic pipeline of agglomeration non-spherical microswimmer and a kind of filtration method. Background technique [0002] Micro-swimmers refer to individuals with a size in the sub-millimeter to micron level that have a driving force and can swim in the flow field, Including bacteria, sperm, micro-robots, etc. Due to the application of micro-swimming body, the existing fluid environment is mostly dynamic and complex, how to remove such individuals from fluid Separation is challenging. The general membrane filtration method can only separate individuals with size differences, and in the smaller size It is difficult to construct inside the microfluidic channel and easy to cause blockage. Develop a method for microswimming based on individual swimming ability using the f...

AI Technical Summary

Problems solved by technology

[0003] Due to the application of microswimmers, the existing fluid environments are mostly dynamic and complex, and how to separate such individuals from the fluid is challenging.

The general membrane filtration method can only separate individuals with different sizes, and it is difficult to construct in a small-sized microfluidic channel, and it is easy to cause blockage

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