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Directional movement method for a droplet carrier type micro object

A technology for directional and directional movement of objects, applied in radiation/particle processing, nuclear engineering, etc., can solve problems such as high cost and complicated operation, and achieve good economic performance

Pending Publication Date: 2021-09-24
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the existing method of directional movement of tiny objects that the operation is complex and requires the cooperation of high-cost precision instruments, and to provide a method for directional movement of tiny objects with a droplet carrier

Method used

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  • Directional movement method for a droplet carrier type micro object
  • Directional movement method for a droplet carrier type micro object

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 Shown is an embodiment of a method for directional movement of a droplet 2 carrier micro object 3 in the present invention. Include the following specific steps:

[0028] S1. Place the tiny object 3 on the flat plate 4;

[0029] S2. Adding droplet 2 on the tiny object 3, the droplet 2 wraps the tiny object 3, and the droplet 2 does not infiltrate the plate 4;

[0030] S3. Guiding the liquid droplet 2 wrapping the tiny object 3 to move to the target position on the flat plate 4;

[0031] S4. The liquid droplet 2 is evaporated, and the tiny object 3 is still at the target position.

[0032] In this embodiment, the droplet 2 includes the tiny object 3, driven by the external force, the droplet 2 drives the tiny object 3 to move directionally on the plate 4 until the droplet 2 drives the tiny object 3 to move to the target on the plate 4 Location.

Embodiment 2

[0034] This embodiment is similar to Embodiment 1, the difference is that the plate 4 is made of insulating material, the droplets 2 are charged, and the charged droplets 2 do not infiltrate the plate 4 . An electrostatic field is applied in a direction perpendicular to the plate 4, and the charged droplet 2 moves directionally under the guidance of the electrostatic field until it moves to the target position on the plate 4; when the electrostatic field is turned off, the laser 1 illuminates the top of the droplet 2 vertically. In the middle position, the liquid droplet 2 is continuously heated until it is completely evaporated, leaving only the tiny object 3 at the target position on the plate 4 .

Embodiment 3

[0036] This embodiment is similar to Embodiment 1, the difference is that the flat plate 4 is placed on a platform that can control the inclination angle and direction, the liquid drop 2 wraps the tiny object 3 on the flat plate 4, and the staff controls the inclination angle and direction of the platform. Direction, drive the flat plate 4 on the platform to follow and tilt together, the droplet 2 will not infiltrate the flat plate 4, the droplet 2 will move on the flat plate 4 with the tiny object 3, after reaching the target position, adjust the platform to a horizontal state, the laser 1 vertically irradiates the middle position of the top of the droplet 2, and continues to heat the droplet 2 until it evaporates completely, leaving only the tiny object 3 remaining on the target position on the plate 4.

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PUM

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Abstract

The invention provides a directional movement method for a droplet carrier type micro object. The directional movement method comprises the following steps: S1, placing the micro object on a flat plate; S2, adding liquid drops to the tiny objects, wherein the tiny objects are wrapped by the liquid drops, and the liquid drops are not infiltrated with the flat plate; S3, guiding the liquid drop wrapping the tiny object to directionally move to a target position on the flat plate; and S4, evaporating the liquid drops, and keeping the tiny object still at the target position. According to the method, a simpler operation method is adopted, the tiny object can be effectively pushed to directionally move on the flat plate, precise and complex operation instruments are not needed, and the economic performance is good.

Description

technical field [0001] The present invention relates to the technical field of directional movement of tiny objects, and more particularly, to a method for directional movement of tiny objects carried by liquid droplets. Background technique [0002] Oriented movement is an important way of material separation and material processing, and has a wide range of applications in biology, materials, electronics and other fields. At present, the technology to achieve directional movement of tiny objects is mainly to use tools for precise grasping. There are several methods for precise grasping: (1) Mix iron, cobalt, nickel and other magnetic materials on tiny objects, and use electromagnetic adsorption and release to realize the transfer of tiny objects. (2) Using a transfer head with a bipolar structure, positive and negative voltages are respectively applied during the transfer process. When preparing to grab a tiny object, a positive charge is applied to a silicon electrode, an...

Claims

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Application Information

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IPC IPC(8): G21K1/00
CPCG21K1/00
Inventor 杨冠南李澄楷崔成强张昱
Owner GUANGDONG UNIV OF TECH