Programmable liquid drop moving system based on hydrophobic magnetoelastic film and driving method thereof

A mobile system and hydrophobic technology, applied in chemical instruments and methods, laboratory containers, laboratory utensils, etc., can solve the problem of liquid droplet physical and chemical properties interfering with experimental results, liquid droplets doped with magnetic materials, and physical and chemical properties affecting experiments Results and other issues, to achieve the effect of wide application value, high tolerance, good flexibility

Pending Publication Date: 2022-07-22
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The published patent application CN201880002445.X discloses a method of liquid droplet manipulation using electrowetting technology. Electrowetting technology places the controlled droplet in an electric field, which can achieve good droplet control, but this method It may cause ionization of the internal components of the droplet, etc., changing its physical and chemical properties and affecting the experimental results
The publ

Method used

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  • Programmable liquid drop moving system based on hydrophobic magnetoelastic film and driving method thereof
  • Programmable liquid drop moving system based on hydrophobic magnetoelastic film and driving method thereof
  • Programmable liquid drop moving system based on hydrophobic magnetoelastic film and driving method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] Example 1

[0047] like figure 1 and figure 2 As shown, the programmable droplet movement system based on the hydrophobic magneto-elastic film includes a coil group array 5, a PMMA support plate 4, a silicone rubber layer 3 and a hydrophobic magneto-elastic film arranged from bottom to top on the fixed support 1 2, and a current control system connected to the coil set array 5; specifically,

[0048] like figure 2 As shown, the fixed bracket 1 is composed of a bottom plate, a lower bracket and an upper bracket arranged in sequence from bottom to top;

[0049] Specifically, the bottom plate is a horizontally arranged plate body;

[0050] The lower bracket is composed of a first rectangular frame and four outriggers, the four outriggers are vertically arranged and fixed at the four corners of the first rectangular frame, and the upper part of the four outriggers is partially located above the first rectangular frame; The size of the first rectangular frame is small...

Example Embodiment

[0059] Example 2

[0060] A preparation method of the hydrophobic magnetoelastic thin film of the programmable magnetic field control droplet moving system described in Embodiment 1, the specific steps are:

[0061] Step 1. Mold making:

[0062] According to the size of the hydrophobic magneto-elastic film 2 of Example 1, the three-dimensional model of the mold used for the production of the hydrophobic magneto-elastic film was designed using a computer, and high-precision 3D printing was used to obtain the magnetic block production mold as shown in Figure 4 and as shown in Figure 4. Figure 5 The shown hydrophobic magnetoelastic film fabrication mold; specifically,

[0063] As shown in Figure 4, the magnetic block manufacturing mold is a square module, and four square grooves in the shape of a square are evenly distributed on the square surface. The groove width of each positive direction groove is 3mm and the groove depth is 0.5mm. mm;

[0064] like Figure 5 As shown, t...

Example Embodiment

[0074] Example 3

[0075] The programmable magnetic field control droplet movement system can control the horizontal and vertical movement of the droplets on the platform, the oblique continuous and uniform movement, and the multi-droplet mixing function;

[0076] Specifically, as Image 6 As shown in the figure, the 25 cylindrical coils in the coil group array 5 are numbered and named according to the number of rows and columns where the cylindrical coils are located; and then the current of the corresponding cylindrical coils is specifically controlled to realize the droplet directional movement;

[0077] 1. A method of utilizing a programmable magnetic field to control a droplet movement system to drive a droplet to carry out lateral or longitudinal movement on a platform, the concrete steps of which are:

[0078] Take the droplet moving laterally from the position of coil (1,1) to coil (1,2) from left to right as an example; specifically,

[0079] The coil at the starti...

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Abstract

The invention discloses a hydrophobic magnetoelastic film-based programmable liquid drop moving system and a driving method thereof. The hydrophobic magnetoelastic film-based programmable liquid drop moving system comprises a coil group array, a supporting plate, a silicone rubber layer and a hydrophobic magnetoelastic film which are arranged on a fixed bracket from bottom to top, the coil group array is composed of a plurality of cylindrical coils and is vertically arranged in an array form; the supporting plate, the silicon rubber layer and the hydrophobic magnetoelastic film are horizontally laid from bottom to top and are arranged above the coil assembly array, and the hydrophobic magnetoelastic film is composed of a plurality of magnetized magnetic blocks embedded in the hydrophobic magnetoelastic film; one magnetic block is arranged right above each cylindrical coil, and one magnetic block is arranged at the midpoint of a connecting line of every two adjacent cylindrical coils in the transverse direction and the longitudinal direction; according to the system and the driving method thereof, the super-hydrophobic magnetoelastic film and the micro electromagnetic coil are adopted to realize programmable stable constant-speed movement of the liquid drops, the flexibility is high, the physicochemical properties of the liquid drops are not influenced, the tolerance to the characteristics of the liquid drops is high, and the driving method is simple, flexible and easy to control.

Description

technical field [0001] The invention relates to the technical field of droplet control and droplet control, in particular to a programmable droplet movement system based on a hydrophobic magnetoelastic thin film and a driving method thereof. Background technique [0002] In testing experiments and scientific research in the fields of biology, chemistry, and materials, it is necessary to perform complex operational tests on various droplet samples and reagents. Especially in the testing of liquids with radiation and toxicity, scientific research and medical staff need to wear effective protective equipment to prevent harm to the human body. Manual operation of test droplet samples will consume a lot of experimental equipment, and also generate a lot of medical waste, causing great pollution to the environment. Therefore, the automatic control of droplets is an urgent problem to be solved. Precise droplet control technology has extensive application value in many fields such...

Claims

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Application Information

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IPC IPC(8): B01L3/00
CPCB01L3/50273B01L2400/0415
Inventor 向红标王禹喆张现苗李梦伟杨玉维王收军黄显霍文星
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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