A scanning method and system for custom processing and packaging of microdroplet arrays

Abstract

This invention discloses a scanning-based customized processing and packaging method and system for microdroplet arrays. The method includes: S1, preparing a solution containing multiple microdroplets, adding the solution to a transparent box, and the multiple microdroplets spontaneously forming a periodic microdroplet array structure on the planar substrate of the transparent box; S2, according to a preset laser scanning scheme, using a laser device to scan and inject target microdroplets in the periodic microdroplet array structure to enable the target microdroplets to function; during the processing, the relative positions of each microdroplet in the periodic microdroplet array structure remain unchanged; S3, preparing a photosensitive mixed aqueous solution, and replacing the solution in the transparent box with the photosensitive mixed aqueous solution; S4, using a photocuring device to in-situ cure the photosensitive mixed aqueous solution containing the processed periodic microdroplet array structure to encapsulate the periodic microdroplet array structure into a flexible component. This invention eliminates the step of controlling the different microdroplets to be ordered according to the design, realizing the customization of the entire microdroplet array function.

Description

Technical Field

[0001] This invention belongs to the field of chip design technology, specifically relating to a scanning-based custom fabrication and packaging method and system for microdroplet arrays. Background Technology

[0002] In recent decades, micro- and nano-fabrication technologies for solid materials have enabled the integration of complex electronic functions into electronic devices at the micro- and nano-scale, facilitating a revolutionary development in the modern electronics industry. Similarly, in the field of soft matter and liquid materials, miniaturization strategies and the research into extreme fabrication techniques for assembling them into mesoscale droplet microsystems are equally valuable. In recent years, novel laser injection technology has been developed. This technology utilizes Gaussian lasers to irradiate soft matter microdroplets in aqueous solutions, creating mechanical forces on the droplet surface to inject the aqueous solution into the droplet. The injected aqueous solution spontaneously forms uniformly sized sub-droplets under the elastic action of the soft matter molecules, and then self-organizes into an ordered structure. Through laser-directed injection and the controllable self-organization of the injected sub-droplets, customized assembly of 3D spherical structures of microdroplets has been achieved, demonstrating processing advantages and potential in multiple aspects.

[0003] Compared to solid materials, the most significant characteristic of soft and liquid materials is that their physical properties can be dynamically tuned and even their functions switched through external stimuli such as electric / magnetic fields. Furthermore, based on their unique physical properties, a single microdroplet can serve as an independent functional unit, such as a laser source, liquid lens, information storage device, information display unit, or sensor. Developing functional components based on microdroplet arrays has broad application prospects in multiple fields, including information optics, intelligent sensing, chemical engineering, and biotechnology. Therefore, how to arrange microdroplets with different functions according to pre-designed rules, and how to solidify and encapsulate the processed microdroplet array, are key technical issues in component development.

[0004] The development of functional components based on microdroplet arrays composed of soft matter and liquid material droplets has broad application prospects in multiple fields. For example, a team at MIT (Nature Photonics, 14, 310-315, 2020) used a periodic spherical array structure to directionally control the light field, developing a technique for dark-field microscopic imaging based on a conventional optical microscope. However, current application development is mostly based on microdroplet arrays composed of the same type of droplets, resulting in relatively simple functions. Arrays composed of different droplets can achieve more complex functions by utilizing the synergy between different droplets, and even, to some extent, can integrate multiple functions into the microdroplet array. However, its development has been slow due to technological limitations, mainly because there is a lack of effective technical means to arrange droplets with different functions in an orderly manner according to pre-designed rules. A team from Fudan University (Nature Communications, 15, 699, 2021) placed different microdroplets into different pixel unit boxes. All microdroplets within a pixel unit box have the same function. By assembling different pixel unit boxes into an array, all the unit boxes together perform a specific function. In this way, they developed a dual-color (structural color and fluorescent color) programmable anti-counterfeiting chip using an array of pixel unit boxes. By switching the light source, different information can be displayed, demonstrating the great potential for developing functional components based on different microdroplets. However, the technical challenges of developing functional components based on a single microdroplet array composed of different microdroplets have not yet been solved.

[0005] Therefore, there is an urgent need to develop a customized fabrication method for microdroplet arrays to enable the orderly arrangement of microdroplets with different functions according to the design scheme, thereby solving the technical challenges faced in the development of functional components for microdroplet arrays. Summary of the Invention

[0006] To address the aforementioned problems in related technologies, this invention provides a scanning-based custom fabrication and packaging method and system for microdroplet arrays. The technical problem to be solved by this invention is achieved through the following technical solution:

[0007] This invention provides a scanning-based custom fabrication and packaging method for microdroplet arrays, comprising:

[0008] S1. Prepare a solution containing multiple microdroplets and add the solution to a transparent box; wherein the multiple microdroplets spontaneously form a periodic microdroplet array structure on the planar substrate of the transparent box;

[0009] S2. According to a preset laser scanning scheme, a laser device is used to perform scanning injection processing on the target microdroplets in the periodic microdroplet array structure to enable the target microdroplets to function; wherein, during the scanning injection processing, the relative positions of each microdroplet in the periodic microdroplet array structure remain unchanged;

[0010] S3. Prepare a photosensitive mixed aqueous solution, and replace the solution in the transparent box with the photosensitive mixed aqueous solution;

[0011] S4. The photosensitive mixed aqueous solution containing the processed periodic microdroplet array structure is cured in situ using a photocuring device to encapsulate the periodic microdroplet array structure into a flexible component.

[0012] This invention also provides a scanning-based custom fabrication and packaging system for microdroplet arrays. The system is used to fabricate periodic microdroplet array structures in a mixed aqueous solution contained in a transparent box. The periodic microdroplet array structure is an array structure spontaneously formed by multiple microdroplets in the mixed aqueous solution on a planar substrate of the transparent box. The mixed aqueous solution contains a functionally doped aqueous solution. The system includes:

[0013] The system includes a scanning laser injection module, a real-time observation module, a curing and packaging module, and a computer; the computer is electrically connected to both the scanning laser injection module and the real-time observation module.

[0014] The scanning laser injection module is used to perform scanning injection processing on target microdroplets in the periodic microdroplet array structure according to a preset laser scanning scheme under the control of the computer, so that the target microdroplets have functions; wherein, during the scanning injection processing, the relative positions of each microdroplet in the periodic microdroplet array structure remain unchanged;

[0015] The real-time observation module is used to observe and present laser processing images in real time during the scanning injection process, and to transmit the observed laser processing images back to the computer.

[0016] The curing and encapsulation module is used to cure the photosensitive mixed aqueous solution containing the processed periodic microdroplet array structure in situ, so as to encapsulate the periodic microdroplet array structure into a flexible component.

[0017] The present invention has the following beneficial technical effects:

[0018] To address the technical challenges in developing functional components based on microdroplet arrays, this invention proposes a scanning-based customized fabrication and packaging method for microdroplet arrays. This method eliminates the need for combining and sorting different microdroplets, assigning different functions to microdroplets at specified locations through in-situ fabrication. It provides a feasible technical solution for developing functional components based on microdroplet arrays of different microdroplets. This method offers advantages such as high fabrication precision, high functional density of the fabricated microdroplet arrays, and strong technical scalability. This method is applicable to the customized fabrication of microdroplet arrays of various soft matter and liquid materials.

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 A flowchart of a scanning-based custom fabrication and packaging method for microdroplet arrays provided in an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a scanning custom fabrication and packaging system for an exemplary microdroplet array provided in an embodiment of the present invention;

[0022] Figure 3 Another structural schematic diagram of an exemplary scanning custom fabrication and packaging system for microdroplet arrays provided in an embodiment of the present invention;

[0023] Figure 4 This is an exemplary flowchart for fabricating a flexible component, provided as an embodiment of the present invention. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to specific embodiments, but the implementation of the present invention is not limited thereto.

[0025] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0027] Although the invention has been described herein in conjunction with various embodiments, those skilled in the art will understand and implement other variations of the disclosed embodiments by reviewing the accompanying drawings, disclosure, and appended claims in carrying out the claimed invention. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce good results.

[0028] Developing functional components based on microdroplet arrays has significant scientific and technological value. One key technical challenge is how to arrange and combine microdroplets with different functions in a designed order to achieve specific functions. Existing solutions in the field involve placing identical microdroplets into millimeter-sized solid unit boxes and arranging different unit boxes to achieve the desired effect. This invention proposes a scanning-based customized processing and packaging method for microdroplet arrays. This method eliminates the step of combining and sorting different microdroplets, and endows microdroplets at specified positions in the microdroplet array with different functions through in-situ processing. This provides a feasible technical solution for developing functional components based on microdroplet arrays composed of different microdroplets. By introducing laser micro-nano processing technology, this method enables each microdroplet in the array to independently possess a specific function, thus offering advantages such as high processing precision, high functional density (high integration) of the processed microdroplet array, and strong technical scalability. This method is applicable to the customized processing of microdroplet arrays of various soft matter and liquid materials.

[0029] Figure 1 This is a flowchart of a scanning-based custom fabrication and packaging method for microdroplet arrays provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the method includes the following steps:

[0030] S1. Prepare a solution containing multiple microdroplets and add the solution to a transparent box; wherein, the multiple microdroplets spontaneously form a periodic microdroplet array structure on the planar substrate of the transparent box.

[0031] Here, the solution may contain thousands, tens of thousands, or even millions or tens of millions of microdroplets, and the embodiments of the present invention do not limit this.

[0032] Specifically, S1 can be achieved through the following steps:

[0033] S101. Prepare an aqueous solution of liquid crystal microdroplets with a preset particle size; the aqueous solution of liquid crystal microdroplets contains a surfactant to keep each microdroplet in the aqueous solution in a stable suspended state in the water.

[0034] S102. Functional doped aqueous solution is added to liquid crystal microdroplet aqueous solution and mixed evenly to obtain microdroplet mixed solution.

[0035] Here, the functional doped aqueous solution can be an aqueous solution containing functional materials, such as quantum dots, fluorescent materials, materials with specific refractive indices, special spectral materials, gain media materials, antioxidant components, active protein substances, etc., so that the functional doped aqueous solution can be injected into the microdroplets using a laser to give the microdroplets certain functions.

[0036] S103. The microdroplet mixture solution is added to a transparent box, where, under the action of interfacial tension and gravity, each microdroplet spontaneously arranges itself on the planar substrate of the transparent box to form a periodic microdroplet array structure.

[0037] S2. According to the preset laser scanning scheme, a laser device is used to scan and inject the target microdroplets in the periodic microdroplet array structure to make the target microdroplets functional; wherein, during the scanning and injection process, the relative positions of each microdroplet in the periodic microdroplet array structure remain unchanged.

[0038] Specifically, the preset laser scanning scheme includes: preset laser emission power, preset emission duration, and preset scanning path. For example, the preset laser scanning scheme could be: setting a higher emission power and / or a longer emission duration for droplets at certain locations in the periodic droplet array structure, while setting a lower emission power and / or a shorter emission duration for droplets at other locations in the periodic droplet array structure. This allows for different numbers of functional material sub-droplets to be injected into the droplets at corresponding locations in the periodic droplet array structure, thus giving the droplets at those locations different functions. As another example, the preset laser scanning scheme could be: setting corresponding emission power and emission duration for droplets at certain locations in the periodic droplet array structure, while not setting corresponding emission power and emission duration for the remaining locations in the periodic droplet array structure. This allows droplets with the set emission power and emission duration to be injected with functional material sub-droplets, while droplets without the set emission power and emission duration are not injected with functional material sub-droplets, thus giving the droplets at those locations different functions.

[0039] S3. Prepare a photosensitive mixed aqueous solution and replace the solution in the transparent box with the photosensitive mixed aqueous solution.

[0040] Specifically, S3 can be implemented through the following steps:

[0041] S301. Prepare a mixed aqueous solution containing photosensitive curing material.

[0042] S302. The solution in the transparent box is replaced by a mixed aqueous solution, and the relative positions of each droplet in the processed periodic microdroplet array structure in the transparent box remain unchanged during the solution replacement process.

[0043] S4. A photocuring device is used to cure the mixed aqueous solution containing the processed periodic microdroplet array structure in situ, so as to encapsulate the periodic microdroplet array structure into a flexible component.

[0044] Specifically, S4 includes: using a photocuring device to irradiate the photosensitive mixed aqueous solution containing the processed periodic microdroplet array structure for a preset time, so that the photosensitive mixed aqueous solution around the periodic microdroplet array structure is cured into a transparent polymer film, thereby encapsulating the periodic microdroplet array structure in the transparent polymer film to become a flexible component.

[0045] This invention also provides a scanning-based customized processing and packaging system for microdroplet arrays. This system is used to process a periodic microdroplet array structure 501 in a mixed aqueous solution contained in a transparent box 500. The periodic microdroplet array structure 501 is an array structure spontaneously formed by multiple microdroplets in the mixed aqueous solution contained in the transparent box 500 on a planar substrate of the transparent box 500. The system includes: a scanning laser injection module 100, a real-time observation module 200, a curing and packaging module 300, and a computer 400. The computer 400 is electrically connected to both the scanning laser injection module 100 and the real-time observation module 200. The scanning laser injection module 100, under the control of the computer, performs scanning injection processing on target microdroplets in the periodic microdroplet array structure 501 according to a preset laser scanning scheme to enable the target microdroplets to function; wherein, during the scanning injection processing, the relative positions of each microdroplet in the periodic microdroplet array structure 501 remain unchanged. The real-time observation module 200 is used to observe and present the laser processing image in real time during the scanning injection process, and to transmit the observed laser processing image back to the computer 400. The curing and encapsulation module 300 is used to cure the photosensitive mixed aqueous solution containing the processed periodic microdroplet array structure 501 in situ, so as to encapsulate the periodic microdroplet array structure 501 into a flexible component.

[0046] In some embodiments, the scanning laser injection module 100 includes: a tunable laser source, a beam expander, a first dichroic mirror, a microscope objective, and an electrically controlled triaxial displacement stage. The tunable laser source and the electrically controlled triaxial displacement stage are electrically connected to a computer, and the transparent box is located on the electrically controlled triaxial displacement stage. The tunable laser source is used to emit laser light according to a preset laser emission power and a preset emission duration under computer control. The electrically controlled triaxial displacement stage is used to move the transparent box according to a preset scanning path under computer control, so as to move the target position of the transparent box to the microscope objective, whereby the microscope objective performs scanning injection processing on the target microdroplets in the periodic microdroplet array structure.

[0047] In some embodiments, the scanning laser injection module 100 includes: a tunable laser source, a beam expander, a scanning galvanometer, a field mirror, and a three-axis electrically controlled displacement stage. The tunable laser source and the scanning galvanometer are electrically connected to a computer; the transparent box is located on the electrically controlled three-axis displacement stage. The tunable laser source is used to emit laser light according to a preset laser emission power and a preset emission duration under the control of the computer. The scanning galvanometer is used to move and focus the laser according to a preset scanning path under the control of the computer, so as to move the focused laser to the target position of the transparent box to perform scanning injection processing on the target microdroplets in the periodic microdroplet array structure.

[0048] In some embodiments, the real-time observation module 200 includes: an observation light source, a condenser lens, a second dichroic mirror, and a CMOS camera. The CMOS camera is electrically connected to a computer and is used to acquire and present laser processing images in real time during the scanning injection process, and to transmit the acquired laser processing images back to the computer.

[0049] In some embodiments, the curing and encapsulation module 300 is specifically a UV curing device, used to irradiate the photosensitive mixed aqueous solution containing the processed periodic microdroplet array structure for a preset time, so that the photosensitive mixed aqueous solution around the periodic microdroplet array structure is cured into a transparent polymer film, and the periodic microdroplet array structure is encapsulated in the transparent polymer film to become a flexible component.

[0050] Regarding the aforementioned scanning-based custom fabrication and packaging method and system for microdroplet arrays, the following specific embodiments are provided for illustrative purposes:

[0051] Example 1

[0052] Figure 2 This is an exemplary system architecture diagram of the scanning-based custom fabrication and packaging system for microdroplet arrays of the present invention. Figure 2As shown, the scanning laser injection module consists of a tunable laser source 1, a beam expander 2, and a beam scanning motion control module 3. The beam scanning motion control module 3 consists of a dichroic mirror 4, a microscope objective 5, and an electrically controlled triaxial displacement stage 6. A glass sample container 7 containing a solution including a microdroplet array 8 is placed on the electrically controlled triaxial displacement stage 6. The electrically controlled triaxial displacement stage 6 and the tunable laser source 1 are respectively connected to a computer 14. The computer drives the hardware to achieve high-precision intelligent control of parameters such as focused laser power, exposure time, and the relative motion trajectory of the focused laser. The typical software platform for integrated intelligent control through the computer 14 is LabVIEW, and the typical model of the triaxial electrically controlled displacement stage is MLS203-1. A tunable laser source 1, beam expander 2, dichroic mirror 4, microscope objective 5, and electrically controlled triaxial displacement stage 6 are used to expand and focus the laser beam onto the target area within the glass sample box 7, forming a focused laser. This focused laser is then used to inject microdroplets located within the target area of ​​the microdroplet array 8. Specifically, by controlling the relative movement between the focused laser and the microdroplet array 8, each microdroplet in the array can be scanned and processed individually to impart a specific function. The real-time observation module consists of an observation source 9, condenser lens 10, dichroic mirror 12, and CMOS camera 11. This module enables real-time observation and tracking of the laser injection process within the microdroplet array 8 in the glass sample box 7. The CMOS camera 11 is connected to a computer 14, and a LabVIEW plugin is used to transmit and display the laser processing images in real time. A typical model of the CMOS camera is the Dhyana 400DC. The curing and encapsulation module consists of a UV curing device 13, used to cure and encapsulate the processed microdroplet array into flexible components. A typical model of the UV curing device is the S2000.

[0053] Example 2

[0054] Figure 3 This is an exemplary system architecture diagram of the scanning-based custom fabrication and packaging system for microdroplet arrays of the present invention. Figure 3As shown, the scanning laser injection module consists of a tunable laser source 1, a beam expander 2, and a beam scanning motion control module 3. The laser motion control module 3 consists of a scanning galvanometer 15 and a field lens 16. A typical model of the scanning galvanometer is QS30XY-AG. The scanning galvanometer 15 and the tunable laser source 1 are connected to a computer 14. The computer 14 drives the hardware to achieve high-precision integrated intelligent control of parameters such as focused laser power, exposure time, and focused laser trajectory. A typical software platform for achieving integrated intelligent control through the computer 14 is LabVIEW. By controlling the scanning galvanometer 15, the focused laser, after passing through the beam expander 2, can be moved via the field lens 16 to the target area in the glass sample box 7 to inject microdroplets located in the target area of ​​the microdroplet array 8. That is, by controlling the relative movement between the focused laser and the microdroplet array 8, the microdroplets to be processed in the microdroplet array can be scanned and processed one by one to give them specific functions. The real-time observation module consists of an observation light source 9, a condenser lens 10, a dichroic mirror 12, and a CMOS camera 11, enabling real-time observation and tracking of the laser injection processing of the microdroplet array 8 within the glass sample box 7. The CMOS camera 11 is connected to a computer 14, and uses a LabVIEW plugin to transmit and display the laser processing images in real time. A typical model of the CMOS camera is the Dhyana400DC. The curing and encapsulation module consists of a UV curing device 13, used to cure and encapsulate the processed microdroplet array into flexible components. A typical model of the UV curing device is the S2000.

[0055] Example 3

[0056] Step S11: Prepare an aqueous solution of microdroplets with a particle size of 30 micrometers. The aqueous solution contains 1% by weight of the surfactant SDS (sodium lauryl sulfate) to ensure stable suspension of the microdroplets in water. Add 0.5 ml of a CdTe / CdS quantum dot aqueous solution (3 mg / ml) to the microdroplet aqueous solution and mix thoroughly to obtain a microdroplet mixture solution. Add the microdroplet mixture solution to a glass sample container. Under the influence of interfacial tension and gravity, the microdroplets will spontaneously arrange themselves on the planar substrate of the glass sample container to form a periodic array of microdroplets resembling crystals. For example, as... Figure 4 As shown, multiple microdroplets 17 spontaneously arrange themselves on the planar substrate of the sample box to form a periodic microdroplet array 18 resembling a crystal;

[0057] Step S22: Using computer 14 to drive hardware units such as tunable laser 1 and beam scanning motion control module 3, the focused laser scanning path 19 is set to reciprocate along a straight line using LabVIEW software, and the laser energy (laser power * irradiation time) at different positions in the scanning path 19 is programmed and controlled; for example, the focused laser scanning path 19 is as follows: Figure 4 As shown;

[0058] Step S33: A focused laser is used to inject CdTe / CdS quantum dots into microdroplets at specific locations in the microdroplet array 18. During the injection process, CdTe / CdS quantum dots are injected into the microdroplets along with the aqueous solution to form sub-droplets. In the laser scanning process, the microdroplets 21 injected with CdTe / CdS quantum dots exhibit fluorescence properties, while the microdroplets 20 without injection processing do not. For example, as... Figure 4 As shown, the microdroplets 21 that were injected into the microdroplet array 22 after laser scanning processing form an "XD" pattern.

[0059] Step S44: Prepare a mixed aqueous solution of 10% polyvinyl alcohol (PVA), 7.5% polyacrylamide monomer (acrylamide), 0.3% N,N'-methylenebisacrylamide (MBAA), and 0.2% photoinitiator (Irgacure 2959). Replace the aqueous solution containing the processed microdroplet array 22 with this mixed aqueous solution, ensuring that the relative positions of the microdroplets within the microdroplet array 22 remain unchanged during the solution replacement process. Then, irradiate the microdroplet array 22 with a UV curing device 13 for 5 minutes to solidify the surrounding solution into a transparent polymer film. Simultaneously, the microdroplet array 22 is encapsulated within the transparent polymer film to form a flexible photonic chip 23. This transparent flexible chip 23 exhibits no pattern under ordinary light but displays an "XD" pattern under fluorescent light. For example, the flexible photonic chip 23... Figure 4 As shown.

[0060] The above-described Embodiments 1 and 2 present two typical laser processing systems for microdroplet array scanning-based customized processing based on single-point focused laser scanning. In some embodiments, multi-point scanning can also be used to achieve microdroplet array scanning-based customized processing in order to improve processing efficiency.

[0061] 1. This invention proposes a scanning-based customized processing and packaging method for microdroplet arrays. This method eliminates the step of controlling different microdroplets to be sorted according to the design. It assigns specific functions to microdroplets at designated locations through in-situ processing (without affecting the structure of nearby droplets). The customization of the entire microdroplet array function is achieved by scanning and processing each microdroplet in the array.

[0062] 2. This invention provides feasible processing ideas, technical means, and packaging methods for developing functional components based on microdroplet arrays composed of different microdroplets;

[0063] 3. The components developed based on the microdroplet arrays processed in this invention have advantages such as high processing precision and high functional density of the microdroplet arrays;

[0064] 4. This invention is an extension of the non-contact in-situ processing technology of laser injection technology, and it also inherits the advantages of good compatibility with other technologies and strong technical scalability.

[0065] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A scanning-based custom fabrication and packaging method for microdroplet arrays, characterized in that, include: S1. Prepare a solution containing multiple microdroplets and add the solution to a transparent box; wherein the multiple microdroplets spontaneously form a periodic microdroplet array structure on the planar substrate of the transparent box; S2. According to a preset laser scanning scheme, a laser device is used to perform scanning injection processing on the target microdroplets in the periodic microdroplet array structure to enable the target microdroplets to function; wherein, during the scanning injection processing, the relative positions of each microdroplet in the periodic microdroplet array structure remain unchanged; S3. Prepare a photosensitive mixed aqueous solution, and replace the solution in the transparent box with the photosensitive mixed aqueous solution; S4. The photosensitive mixed aqueous solution containing the processed periodic microdroplet array structure is cured in situ using a photocuring device to encapsulate the periodic microdroplet array structure into a flexible component. Wherein, S1 includes: S101. Prepare an aqueous solution of liquid crystal microdroplets with a preset particle size; the aqueous solution of liquid crystal microdroplets contains a surfactant to keep each microdroplet in the aqueous solution in a stable suspended state in the water. S102. Add a functional doped aqueous solution to the liquid crystal microdroplet aqueous solution and mix evenly to obtain a microdroplet mixed solution; S103. The microdroplet mixture solution is added to a transparent box, wherein, under the action of interfacial tension and gravity, each microdroplet spontaneously arranges itself on the planar substrate of the transparent box to form a periodic microdroplet array structure. S3 includes: S301. Prepare a mixed aqueous solution containing a photosensitive curing material; S302. The solution in the transparent box is replaced by the mixed aqueous solution, and the relative positions of each droplet in the processed periodic microdroplet array structure in the transparent box remain unchanged during the solution replacement process.

2. The scanning-based custom fabrication and packaging method for microdroplet arrays according to claim 1, characterized in that, The preset laser scanning scheme includes: preset laser emission power, preset emission duration, and preset scanning path.

3. The scanning-based custom fabrication and packaging method for microdroplet arrays according to claim 1, characterized in that, S4 specifically includes: A photosensitive mixed aqueous solution containing the processed periodic microdroplet array structure is irradiated for a preset time using a photocuring device, so that the photosensitive mixed aqueous solution around the periodic microdroplet array structure is cured into a transparent polymer film, thereby encapsulating the periodic microdroplet array structure in the transparent polymer film to become a flexible component.

4. A scanning-based custom fabrication and packaging system for microdroplet arrays, characterized in that, The system is used to process a periodic microdroplet array structure in a mixed aqueous solution contained in a transparent box using the scanning-type customized processing and packaging method of the microdroplet array according to any one of claims 1 to 3. The periodic microdroplet array structure is an array structure spontaneously formed by multiple microdroplets in the mixed aqueous solution contained in the transparent box on a planar substrate of the transparent box. The mixed aqueous solution contains a functionally doped aqueous solution. The system includes: The system includes a scanning laser injection module, a real-time observation module, a curing and packaging module, and a computer; the computer is electrically connected to both the scanning laser injection module and the real-time observation module. The scanning laser injection module is used to perform scanning injection processing on target microdroplets in the periodic microdroplet array structure according to a preset laser scanning scheme under the control of the computer, so that the target microdroplets have functions; wherein, during the scanning injection processing, the relative positions of each microdroplet in the periodic microdroplet array structure remain unchanged; The real-time observation module is used to observe and present laser processing images in real time during the scanning injection process, and to transmit the observed laser processing images back to the computer. The curing and encapsulation module is used to cure the photosensitive mixed aqueous solution containing the processed periodic microdroplet array structure in situ, so as to encapsulate the periodic microdroplet array structure into a flexible component.

5. The scanning-type customized fabrication and packaging system for microdroplet arrays according to claim 4, characterized in that, The scanning laser injection module includes: The system includes a tunable laser source, a beam expander, a first dichroic mirror, a microscope objective, and an electrically controlled triaxial displacement stage; the tunable laser source and the electrically controlled triaxial displacement stage are electrically connected to the computer, and the transparent box is located on the electrically controlled triaxial displacement stage. The tunable laser source is used to emit laser according to a preset laser emission power and a preset emission duration under the control of the computer. The electrically controlled three-axis displacement stage is used to move the transparent box according to a preset scanning path under the control of the computer, so as to move the target position of the transparent box to the microscope objective, and the microscope objective performs scanning injection processing on the target microdroplets in the periodic microdroplet array structure.

6. The scanning-type custom fabrication and packaging system for microdroplet arrays according to claim 4, characterized in that, The scanning laser injection module includes: The system includes a tunable laser source, a beam expander, a scanning galvanometer, a field lens, and an electrically controlled triaxial displacement stage; the tunable laser source and the scanning galvanometer are electrically connected to the computer; the transparent box is located on the electrically controlled triaxial displacement stage. The tunable laser source is used to emit laser according to a preset laser emission power and a preset emission duration under the control of the computer. The scanning galvanometer is used to move the focused laser along a preset scanning path under the control of the computer, so as to move the focused laser to the target position of the transparent box to perform scanning injection processing on the target microdroplets in the periodic microdroplet array structure.

7. The scanning-type custom fabrication and packaging system for microdroplet arrays according to claim 4, characterized in that, The real-time observation module includes: The system includes an observation light source, a condenser lens, a second dichroic mirror, and a CMOS camera. The CMOS camera is electrically connected to the computer and is used to acquire and present laser processing images in real time during the scanning injection process, and to transmit the acquired laser processing images back to the computer.

8. The scanning-type custom fabrication and packaging system for microdroplet arrays according to claim 4, characterized in that, The curing and encapsulation module includes: a photocuring device for irradiating the photosensitive mixed aqueous solution containing the processed periodic microdroplet array structure for a preset time, so that the mixed aqueous solution around the periodic microdroplet array structure is cured into a transparent polymer film, and the periodic microdroplet array structure is encapsulated in the transparent polymer film to become a flexible component.

Images