Methacrylated Protein Hydrogel for Cell Adhesion and Immune Modulation
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Solution Overview
Problem
Existing hydrogels, both synthetic and natural, lack robust cell adhesion properties, limiting their safe and efficient application in tissue engineering and regenerative medicine, and there is a need for materials that can modulate immune responses for therapeutic and cosmetic tissue augmentation.
Innovation Solution
A hydrogel composition comprising a methacrylated protein, such as albumin, collagen, keratin, or silk, is prepared by methacryloylation, which is then cross-linked using ultraviolet light to enhance cell adhesion and modulate immune responses through controlled expression of cytokines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If natural hydrogels are used, then biocompatibility and bioactivity are improved, but cell adhesion properties are insufficient
Solution Approach 1:
The patent applies parameter changes by modifying the chemical structure of natural proteins through methacryloylation, introducing reactive groups that enable crosslinking while preserving the protein's biocompatible backbone. This chemical modification allows the hydrogel to achieve both biocompatibility and enhanced cell adhesion through controlled network formation.
Solution Approach 2:
The patent creates a composite hydrogel system combining natural proteins (collagen, gelatin, albumin) with methacrylate groups and crosslinkers. This composite structure integrates the biocompatibility of natural materials with the adhesive and structural properties of crosslinked networks, resolving the contradiction between biocompatibility and cell adhesion.
2Adaptability or versatility
If synthetic hydrogels are used, then mechanical properties and tunability are improved, but cell adhesion and biocompatibility are insufficient
Solution Approach 1:
The patent uses parameter changes by controlling the degree of methacryloylation and crosslinking density to tune the hydrogel's mechanical properties while maintaining biocompatibility. The natural protein backbone preserves biological recognition, while adjustable crosslinking provides mechanical tunability.
3Object-affected harmful factors
If protein modification is performed to enhance adhesion, then cell adhesion is improved, but immunogenicity may increase
Solution Approach 1:
The patent applies parameter changes by controlling the degree of methacryloylation to optimize cell adhesion while minimizing immunogenicity. By adjusting the modification level and using biocompatible crosslinkers, the patent achieves enhanced adhesion without triggering significant immune responses.
Solution Approach 2:
The patent employs transient crosslinking that can be controlled to degrade over time, allowing the hydrogel to provide temporary structural support and adhesion cues during tissue regeneration, then naturally degrade without long-term immunogenicity issues.
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 methacrylated protein hydrogel provides enhanced cell adhesion and immune response modulation, suitable for therapeutic and cosmetic tissue augmentation, as well as passivation coatings for biomedical devices, demonstrating reduced cytokine expression and improved biocompatibility.
Implementation Method 1
adding methacrylic anhydride to the buffered solution to prepare a reaction mixture; incubating the reaction mixture to generate the methacrylated protein
Implementation Method 2
exposing the hydrogel precursor solution to ultraviolet light to cross-link the methacrylated protein to prepare the hydrogel composition
Data Source
AI summary
Disclosed herein are tissue augmentation compositions comprising a hydrogel modified with methacrylic anhydride. The hydrogel may be composed of albumin, collagen, silk, or keratin. The composition may be used to modulate an immune response for tissue augmentation and/or as a dermal filler. The composition is non-immunogenic, non-toxic, and may be used for various biomedical applications, including passivation coatings for biomedical devices, depots, and inserts.