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Microreactor based on liquid micromotor and its preparation method and application

A micro-motor and micro-reactor technology, applied in chemical instruments and methods, chemical/physical/physical-chemical reactors, and analysis by causing chemical reactions to occur in materials, etc. , high equipment requirements, to achieve the effect of small size, simple preparation method and convenient use

Active Publication Date: 2020-06-30
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The construction method of traditional microreactors is relatively complicated, and generally requires the use of etching methods to construct complex channels, which requires high equipment and leads to increased costs

Method used

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  • Microreactor based on liquid micromotor and its preparation method and application
  • Microreactor based on liquid micromotor and its preparation method and application
  • Microreactor based on liquid micromotor and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] see figure 1 , Dissolve 3.52mg of spiropyran in 10mL of chloroform to obtain a chloroform solution, wherein the structural formula of spiropyran is (1',3'-dihydro-8-methoxy-1',3',3'-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2'-( 2H)-indole]).

[0055] Then take 1 mL of the chloroform solution of spiropyran prepared above and mix with 9 mL of silicone oil to prepare the silicone oil solution 3 of spiropyran.

[0056] Take 5 mL of the silicon oil solution 3 of spiropyran into the transparent Petri dish 2, and use a micro-syringe 1 to inject the serum aqueous solution and Fehling's reagent (containing sodium hydroxide, copper sulfate and potassium sodium tartrate) into the silicone oil solution respectively. The distance between the two is about 1.5mm, and two micromotors 4 (serum motor and Fehling reagent motor) with a particle diameter of about 300 μm are obtained to form a microreactor.

[0057] Among them, serum aqueous solutions containing different concentrations...

Embodiment 2

[0065] Dissolve 3.5mg of spiropyran in 10mL of chloroform to obtain a chloroform solution, wherein the structural formula of spiropyran is

[0066] Then, 1 mL of the chloroform solution of spiropyran prepared above was mixed with 9 mL of silicone oil to prepare a solution of spiropyran in silicone oil.

[0067] Take 5mL of spiropyran silicone oil solution into a transparent Petri dish, and use a micro-syringe to inject FeCl 3 The aqueous solution of NaOH and the aqueous solution of NaOH were injected into different positions in the silicone oil solution to obtain two micron motors (FeCl 3 motor and NaOH motor), forming a microreactor.

[0068] Using the above microreactor for FeCl 3 The reaction between the motor and the NaOH motor uses a white light source, which is formed by mixing light of 371nm, 409nm, 442nm, 554nm, and 582nm, and the light intensity is 0.7W / cm 2 , the specific operation is as follows:

[0069] The white light source is irradiated perpendicular to th...

Embodiment 3

[0072] 4.4mg spiropyran is dissolved in 10mL dichloromethane solvent, obtains dichloromethane solution, wherein the structural formula of spiropyran is (where R=C 8 h 17 ).

[0073] Then, 1 mL of the chloroform solution of spiropyran prepared above was mixed with 9 mL of silicone oil to prepare a solution of spiropyran in silicone oil.

[0074] Take 3mL of the silicon oil solution of spiropyran into a transparent Petri dish, and use a micro-syringe to inject KSCN and FeCl respectively 3 Injected into different positions in the silicone oil solution, two micromotors with a particle size of about 200 μm were obtained to form a microreactor.

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Abstract

The invention relates to a microreactor based on liquid micrometer motors. The microreactor comprises a spiropyrane silicone oil solution and at least two micrometer motors suspended in the spiropyrane silicone oil solution, wherein the spiropyrane silicone oil solution also comprises an organic solvent; the micrometer motors are driven by a light source; each micrometer motor consists of water-containing liquid drops insoluble with oil; the micrometer motors are in forms of liquid drops; and the particle diameters of the micrometer motors are 100 to 1000 microns. The invention also provides apreparation method thereof. The preparation method comprises the following steps: dissolving spiropyrane into the organic solvent to obtain an organic solution; mixing the organic solution with silicone oil to obtain the spiropyrane silicone oil solution; and adding the water-containing liquid drops insoluble with oil into the spiropyrane silicone oil solution to obtain the microreactor based onthe liquid micrometer motors. The invention also discloses the application of the microreactor based on the liquid micrometer motors in analysis of chemical reaction. According to the microreactor, the light source is used for replacing a microchannel, and the motion direction and speed of the liquid motors also can be controlled by regulating the intensity of the light source, so that the purposeof detection is reached.

Description

technical field [0001] The invention relates to a microreactor, in particular to a liquid micromotor-based microreactor, its preparation method and application. Background technique [0002] In chemical engineering, many experiments and processes involve the mixing and reaction of different solutions. Using mechanical or hydrodynamic methods, two or more substances can be mixed and contacted with each other. One of the ways in which small quantities of substances can be mixed and reacted is with the help of microreactors. The traditional microreactor refers to the use of microfabrication methods to manufacture three-dimensional structural elements with microchannels with a size of 10-1000 microns on a solid substrate. As fluids flow through these microchannels, fluids in different channels mix and react. Because microreactors usually contain channel diversity and small channel size, many different reactions can be carried out simultaneously and the amount of sample used i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78G01N21/82B01J19/00
CPCB01J19/0093B01J2219/00819B01J2219/00934B01J2219/00943G01N21/78G01N21/82
Inventor 张冬梅张慧董彬
Owner SUZHOU UNIV
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