Silicone Peroxide Composite for Sustained Oxygen Release
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Solution Overview
Problem
Current methods for generating oxygen in situ, such as oxygen reservoirs and electrochemical generation, are limited in duration and complexity, and existing peroxide-based materials fail to sustain oxygen release for extended periods, particularly in biological environments.
Innovation Solution
A composite comprising a biocompatible polymeric support with suspended solid peroxide particles, where the polymeric support is made from silicone or similar materials, and includes a platinum catalyst for cross-linking, providing a sustained release of oxygen for up to 14 days with an oxygen tension value of at least 40 mmHg.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If simple oxygen reservoirs are used, then oxygen can be stored, but the duration is limited to a few hours due to implantation difficulties
Solution Approach 1:
The patent changes the physical state of oxygen from gaseous storage in tanks to chemical storage as solid peroxide particles embedded in polymer. This parameter change enables long-term oxygen generation without complex implantation, as the peroxide-polymer composite can be easily applied topically or implanted minimally invasively.
Solution Approach 2:
The patent uses a composite material system combining peroxide particles with biocompatible polymer matrices (silicone, polyolefins, polyesters). This composite approach allows the oxygen-generating material to maintain structural integrity while enabling controlled release over extended periods, resolving the contradiction between duration and implantation complexity.
2Duration of action of moving object
If electrochemical generation methods are used, then oxygen can be generated continuously, but the device complexity increases due to required electronics
Solution Approach 1:
The patent replaces electrochemical generation (requiring electronics, power sources, and control systems) with a chemical generation system based on peroxide decomposition. This substitution eliminates all electronic components while achieving continuous oxygen generation through the chemical reaction between peroxide and biological fluids, significantly reducing device complexity.
Solution Approach 2:
The peroxide-based system is self-regulating and requires no external power source or electronic control. The oxygen generation rate is automatically modulated by the availability of biological fluids (water, enzymes) in the wound environment, allowing the device to adapt to physiological conditions without electronic sensors or controllers.
3Duration of action of moving object
If peroxide-based materials are used, then oxygen release can be achieved, but the release duration is limited and cannot be sustained for a week or more
Solution Approach 1:
The patent changes the physical form of peroxide from dissolved or gel-state to solid particles suspended in polymer matrices. This parameter change slows the decomposition rate by reducing surface area exposure to biological fluids, enabling sustained oxygen release for weeks rather than hours or days, while maintaining reliable controlled release through the polymer matrix.
Solution Approach 2:
The patent employs composite materials where peroxide particles are dispersed within biocompatible polymer matrices (silicone, polyolefins, polyesters). The polymer matrix provides controlled diffusion barriers that regulate peroxide decomposition kinetics, enabling reliable sustained release for extended periods (7+ days) while maintaining biocompatibility and release control.
4Adaptability or versatility
If hydrogels or degradable materials are used, then peroxide can be delivered, but the capacity to modulate oxygen release from short-term bursts to long-term tempered release is limited
Solution Approach 1:
The patent changes the polymer matrix properties from hydrophilic (hydrogels) to hydrophobic (silicone, polyolefins, polyesters). This parameter change provides better control over water and peroxide diffusion rates, enabling modulation of oxygen release from short-term to long-term durations while improving biocompatibility and reducing uncontrolled degradation.
Solution Approach 2:
The patent uses composite materials combining peroxide particles with various biocompatible polymers that can be selected or combined to achieve desired release profiles. The composite structure allows independent optimization of the polymer matrix for controlled diffusion and the peroxide loading for sustained generation, providing versatile modulation capacity across different application 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 composite maintains a stable oxygen tension for an extended period, preventing hydrogen peroxide diffusion and ensuring safe, sustained oxygen delivery to biological tissues, enhancing cell viability and reducing oxidative stress.
Implementation Method 1
solid peroxide particles suspended therein... generating oxygen in situ... chemical to electrochemical to thermal
Implementation Method 2
The composite can include a platinum catalyst to catalyze cross-linking of the biocompatible polymer support
Data Source
AI summary
A composite for delivering extended-release of oxygen is disclosed. The composite can include a biocompatible polymeric support having a plurality of solid peroxide particles suspended therein. The polymer support can exhibit an oxygen tension value of at least 40 mmHg for a period of 14 days. The weight ratio of biocompatible polymeric support to solid peroxide particles can range from 1:1 to 99:1. Also disclosed is a method of using the composite to deliver oxygen to cells in both in vivo and in vitro environments.