Zingerol Biopolyester Resins for 3D-Printed Shape-Memory Implants
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Solution Overview
Problem
Conventional polymers derived from fossil fuels pose environmental concerns due to non-biodegradability, and existing biodegradable polymers like PCL, PGA, and PLA have limitations such as long degradation times and lack of antibacterial, anti-biofilm, and anti-inflammatory properties, hindering their clinical applicability in medical implants and tissue engineering. There is a need for biocompatible, biodegradable polymers with tunable properties and environmentally friendly synthesis methods, suitable for 3D printing and minimally invasive surgery.
Innovation Solution
Development of biodegradable polyesters derived from plant-derived phenolic diols like zingerol, synthesized via catalyst-free and solvent-free melt polycondensation, with inherent antibacterial, anti-inflammatory, and antioxidant properties, and 3D-printable photopolymerizable compositions for complex medical devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional polymers derived from fossil fuels are used, then mechanical strength and durability are improved, but environmental biodegradability deteriorates
Solution Approach 1:
The patent changes the chemical composition parameters by using plant-derived phenolic diols (zingerol) as monomers instead of fossil fuel-based materials. This fundamentally alters the polymer's biodegradability parameter while maintaining mechanical properties through optimized molecular structure and crosslinking density.
Solution Approach 2:
The invention creates composite polymeric materials by combining zingerol-based polyesters with photopolymerizable groups, forming a hybrid material that integrates biodegradability with 3D-printability and mechanical strength. The composite structure allows simultaneous achievement of environmental sustainability and structural integrity.
2Object-affected harmful factors
If existing biodegradable polymers like PCL, PGA, and PLA are used, then environmental biodegradability is improved, but degradation time becomes excessively long
Solution Approach 1:
The patent modifies the degradation time parameter by changing the polymer backbone structure to include zingerol units with specific phenolic and aliphatic hydroxyl groups. This structural modification accelerates hydrolysis and enzymatic degradation rates while controlling the degradation profile through molecular weight and crosslinking density adjustments.
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 zingerol-based polyesters exhibit tunable thermal and mechanical properties, shape memory behavior, and beneficial biological activities, enhancing the success of medical implants and tissue engineering constructs while reducing environmental impact and manufacturing costs.
Implementation Method 1
3D-printable photopolymerizable compositions based on zingerol and its derivatives
Data Source
AI summary
The present invention provides novel polymeric materials for biomedical applications, derived from plant-derived phenolic diols, primarily zingerol. Two material classes are disclosed. First, biodegradable polyesters using said diols, are synthesized via solvent/catalyst-free melt polycondensation. These exhibit tunable mechanical properties, shape memory, antibacterial activity, and biocompatibility. Second, photopolymerizable zingerol derivative monomers or crosslinkers, are formulated into resins for 3D printing. Resulting 3D objects offer tailored mechanics, biodegradability, excellent shape memory, cytocompatibility, hemocompatibility, and potent antioxidant, antibacterial, and anti-biofilm functions. Methods for preparing both polymer types and their derivatives, alongside uses in tissue engineering and medical implants, are described.