3D Printed Biodegradable Cell Culture Plate for Direct In Vivo Application
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Solution Overview
Problem
Current methods for producing cell culture plates for human organoid generation lack biocompatibility and the ability to culture cells in desired shapes, especially for direct in vivo application, and existing 3D printing materials often require cell detachment post-culture.
Innovation Solution
A method involving the use of filament-shaped biodegradable polymer materials, such as a blended combination of PLA and PCL, and a compatibilizer like TBC, which are fed into a 3D printer to produce a cell culture plate that is non-toxic and exhibits excellent biocompatibility, allowing for direct in vivo application without cell detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional 3D printing materials are used to produce cell culture plates, then manufacturing capability and shape control are improved, but biocompatibility and direct in vivo applicability deteriorate
Solution Approach 1:
The patent uses a composite material system consisting of biodegradable polymer materials (PLA and PCL in a 97:3 weight ratio) combined with a compatibilizer (tributyl citrate at 3 wt% of PCL). This composite approach allows the material to simultaneously achieve the necessary mechanical properties for 3D printing and the biocompatibility required for direct in vivo application, resolving the contradiction between manufacturing capability and biological safety
2Reliability
If biodegradable polymer materials are used for 3D printing cell culture plates, then biocompatibility is improved, but interfacial adhesion between polymer layers deteriorates
Solution Approach 1:
The patent introduces tributyl citrate (TBC) as a compatibilizer that acts as an intermediary substance between the hydrophilic PLA and hydrophobic PCL polymer phases. This intermediary improves the interfacial adhesion between the polymer materials by reducing interfacial tension and promoting compatible phase distribution, thereby resolving the adhesion problem while maintaining biocompatibility
3Ease of manufacture
If cell culture plates are designed for direct in vivo application, then additional processing steps are eliminated, but material requirements for both printability and biocompatibility become more complex
Solution Approach 1:
The patent optimizes specific material parameters including the PLA:PCL weight ratio (97:3) and TBC content (3 wt% of PCL) to achieve a balance between printability, mechanical strength, and biocompatibility. By carefully controlling these compositional parameters, the material system can be directly applied in vivo without requiring additional processing steps, as the optimized composition simultaneously satisfies multiple conflicting requirements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The resulting cell culture plate supports cell proliferation and differentiation, offering excellent biocompatibility and mechanical properties, enabling the creation of cell complexes that can be applied directly to the human body without additional processing.
Implementation Method 1
3D printing technology is divided according to the stacking method and the material used. 3D printing technology is divided, according to the stacking method, into extrusion, spraying, photocuring, sintering, drawing, precipitation, bonding, etc.
Implementation Method 2
feeding filament-shaped biodegradable polymer materials, which are not toxic to the human body
Data Source
AI summary
A method for producing a cell culture plate for human organoid generation using 3D printing is proposed. The method includes the steps of: (a) feeding filament-shaped biodegradable polymer materials, which are not toxic to the human body, and a compatibilizer for improving interfacial adhesion between the polymer materials, into a 3D printer; and (b) producing a cell culture plate using the 3D printer. The cell culture plate is produced by feeding biodegradable polymer materials, which is a blended combination of PLA and PCL, and an appropriate compatibilizer, into a 3D printer. The produced cell culture plate is not toxic to the human body, can culture cells in a desired shape, and has excellent biocompatibility so that it can be applied directly in vivo without detaching cells from the plate.