A modular, splicable microfluidic transport device

Abstract

A modular splicable microfluidic transport device, including multiple microfluidic transport platforms and conical microfluidic channels for connecting the microfluidic transport platforms to realize transport of microfluids in multiple microfluidic transport platforms, multiple cones The orientations of the tapered segments in the micro-shaped micro-channels are all the same; each tapered micro-channel is connected to the microfluid delivery platform through a detachable connection structure; The electrode group in the carrier plate and the dielectric and hydrophobic layer covering the electrode group for loading droplets, the part of the droplet carrier plate above the dielectric and hydrophobic layer constitutes a holding tank for storing microfluids, The containing groove and the tapered microfluidic channel constitute a microfluid transport channel for transporting microfluid. The modular splicable microfluid transport device of the present invention is not only simple in structure and easy to manufacture, but also has strong adaptability, and can adapt to different transport powers and transport distances by combining increases and decreases.

Description

technical field [0001] The invention relates to a microfluid transportation device, in particular to a modular splicable microfluid transportation device. Background technique [0002] Lab on a chip is an emerging research direction that has attracted much attention in recent years. The idea is that in a highly integrated small chip, it is possible to complete a whole set of experiments that could only be done in the laboratory with a variety of equipment. It mainly involves microchemical reactions, microbial analysis, and micro-drug delivery. [0003] The mainstream power system currently used to drive microfluidics in lab-on-a-chip is an electrode array drive device composed of a single discrete electrode, where the electrode array is coated with a dielectric layer and a hydrophobic layer; when the liquid crosses the two electrodes , Connect the electrode in the forward direction of the droplet to the positive pole of the external AC power supply, and connect the other e...

AI Technical Summary

Problems solved by technology

But this traditional electrode array driver will have the following problems: 1. When the path that the droplet will pass through in the lab-on-a-chip is more complicated or longer, the number of electrode arrays used will increase, causing each The final layout of the wires from the electrodes is too complex

2. A large number of electrode arrays and complex wiring not only increase the difficulty of manufacturing, but also make it difficult to achieve further integration

3. At present, the existing chip laboratory has special functions, and the internal circuit layout, reaction area and other structural layouts can basically not be adjusted after the project is completed. When another set of experiments is needed, it is often necessary to redesign and build a new chip. Laboratory, on the one hand, the utilization rate of the original laboratory is not high, on the other hand, it greatly increases the construction cost

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