Full droplet rectifier and fluid droplet displacement control system

A fluid droplet and rectifier technology, applied in the field of chemical instruments, can solve the problems of single transmission direction, difficult to transport active substances, low transmission rate, etc., and achieve the effects of high flexibility, outstanding practical value, and good transmission effect.

Active Publication Date: 2022-07-05
HEFEI UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to address the problems of low transmission rate, single transmission direction, small delivery volume, and difficulty in transporting active substances in the existing fluid rectification method; provide a full droplet rectifier and its preparation method, and use the full droplet rectifier Fluid droplet displacement control system and a method for controlling the movement of microfluidic droplets

Method used

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  • Full droplet rectifier and fluid droplet displacement control system
  • Full droplet rectifier and fluid droplet displacement control system
  • Full droplet rectifier and fluid droplet displacement control system

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Embodiment 1

[0063] This embodiment provides a full droplet rectifier for controllably directional moving droplets of a target fluid. (In the following description, "target fluid" refers to the liquid substance to be delivered, such as sodium chloride solution, ethanol, water, glycerol, olive oil, etc. "droplet" refers to the specific form of the target fluid during delivery.) Full liquid The structure of the drop rectifier is as follows figure 1 and figure 2 As shown, it includes a substrate and a plurality of arc-shaped ratchet units on the surface of the substrate. Wherein, the base material is in the shape of a strip-shaped plate. The ratchet units are arranged on the upper surface of the base material in parallel and at equal intervals, and are sequentially arranged in a fish scale shape along the extending direction of the base material. like image 3 As shown, the side of the ratchet unit is similar to the ratchet in the ratchet, the ratchet unit is inclined toward the center s...

Embodiment 2

[0097] This embodiment provides a fluid droplet displacement control system, which is used to directionally transport any type of target fluid in the form of droplets according to a target flow rate to a target direction. Specifically, the displacement control system provided in this embodiment includes: a signal generator, a vibration generator, a full droplet rectifier, a droplet injector, and a controller.

[0098] Wherein, the signal generator is used to generate a vibration control signal including the vibration direction, amplitude and vibration frequency, and / or generate a rotation signal including the rotation angle according to the manually inputted control instructions including the moving speed and the moving direction. Wherein, the vibration direction, amplitude and vibration frequency constitute a first variable group, and the moving direction and moving speed constitute a second variable group; the signal generator is preset with a mapping relationship between the...

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Abstract

The invention relates to the field of chemical instruments, in particular to a full-droplet rectifier, a preparation method of the full-droplet rectifier, a fluid droplet displacement control system adopting the full-droplet rectifier and a trace fluid droplet movement control method. A full droplet rectifier includes a substrate and a plurality of arcuate ratchet units. Wherein the base material is in a strip-shaped flat plate shape. The ratchet units are in a long strip shape, are arranged on the upper surface of the base material in parallel at equal intervals and are sequentially and gradually arranged in a fish scale shape in the extending direction of the base material. The ratchet units incline towards the circle center side of the arc-shaped structure on the base material, and each arc-shaped ratchet unit is symmetrical relative to a center line parallel to the extending direction of the base material. A fluid droplet displacement control system includes a signal generator, a vibration generator, a full droplet rectifier, a droplet injector, and a controller. The problems that an existing fluid rectification method is low in transmission rate, single in transmission direction, small in transmission amount, difficult to convey active substances and the like are solved.

Description

technical field [0001] The invention relates to the field of chemical instruments, in particular to a full droplet rectifier and a preparation method thereof, as well as a fluid droplet displacement control system using the full droplet rectifier and a movement control method for trace fluid droplets. Background technique [0002] In the fields of biomedical detection and chemical medicine, it is usually necessary to manipulate the displacement of a trace amount of fluid, thereby achieving the purpose of quantitative and directional delivery of microorganisms or small molecular active substances. Such devices for directional delivery of fluids are often referred to as fluid rectifiers. The existing methods for realizing fluid rectification mainly include electric field type, thermal field type, magnetic field type and optical field type. Among them, the electric field type is to change the fluid flow direction by means of electrowetting or electrowetting. Magnetic field is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L3/00
CPCB01L3/502792B01L3/50273B01L2400/0436
Inventor 吴思竹项乐
Owner HEFEI UNIV OF TECH
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