Micro-fluidic method for preparing monodisperse multicomponent multiple emulsion, and apparatus thereof
A multi-emulsion, multi-component technology, applied in chemical instruments and methods, chemical/physical/physicochemical processes, chemical/physical processes, etc.
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Embodiment 1
[0060] In this embodiment, the structure of the hierarchical microfluidic device is as follows Figure 4 As shown, the first milk droplet generating assembly 1-1, the second milk droplet generating assembly 1-2, the third milk droplet generating assembly 1-3, the connecting assembly 2 and the first syringe pump 4-1, the second syringe pump 4-2, the third injection pump 4-3, the fourth injection pump 4-4, and the fifth injection pump 4-5 are combined. Each milk drop generation assembly is made up of connecting pipe 11 and injection pipe 12 and collecting pipe 13 respectively inserted into the two ends of the connecting pipe; the connecting pipe 11 is a rectangular glass tube, and its central part is provided with a square through hole. The length is 1.0 mm; the injection tube 12 is a circular glass capillary tube, one end of which is a conical port, and the outer diameter of the circular tube section is equal to the side length of the square through hole of the connecting tube ...
Embodiment 2
[0062] In this example, a monodisperse four-component oil / water / oil double emulsion was prepared. The droplets of the dispersed phase had a double-layer nested structure, and two droplets with different components located in the same layer were encapsulated in the outer layer.
[0063] In this example, the hierarchical microfluidic device described in Example 1 is used, and the preparation process steps are as follows:
[0064] (1) Preparation of each component fluid
[0065] The first component fluid: the first component fluid is an oil phase, which is formulated from the emulsifier polyglyceryl ricinoleate (PGPR 90), dyeing agent Sudan Red and soybean oil, in which the polyglycerininoleate The content is 0.05 g / ml soybean oil, and the content of Sudan Red is 0.001 g / ml soybean oil.
[0066] The second component fluid: the second component fluid is an oil phase, formulated from the emulsifier polyglyceryl ricinoleate (PGPR 90) and soybean oil, wherein the content of polyglyc...
Embodiment 3
[0074] In this embodiment, the structure of the hierarchical microfluidic device is as follows Image 6 As shown, the first milk droplet generating assembly 1-1, the second milk droplet generating assembly 1-2, the third milk droplet generating assembly 1-3, the first connecting assembly 2-1, the second connecting assembly 2-2, A liquid extraction assembly 3 and a first syringe pump 4-1, a second syringe pump 4-2, a third syringe pump 4-3, a fourth syringe pump 4-4, a fifth syringe pump 4-5, and a sixth syringe pump 4-6, the seventh syringe pump 4-7 is combined. The structure and size of each emulsion droplet generating assembly are the same as in Example 1. The first connection assembly 2-1 and the second connection assembly 2-2 have the same structure, the inner diameter of the front liquid inlet pipe is 250 μm, the inner diameter of the side liquid inlet pipe is 150 μm, and the inner diameter of the liquid outlet pipe is 250 μm. The liquid extracting assembly 3 is made up...
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