Gaseous Hydrogen Peroxide Sterilization via Hydroxyl Ion Generation
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Solution Overview
Problem
Existing hydrogen peroxide-based sterilization methods are limited by the use of aqueous solutions, which create water barriers on surfaces, slow diffusion, and require complex equipment, making them inefficient and costly.
Innovation Solution
A system that generates gaseous hydrogen peroxide and decomposes it into hydroxyl ions using UV-activated titanium dioxide, utilizing a non-reactive gas transport to expedite the process and avoid water barriers, with a temperature-controlled sterilization chamber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If aqueous hydrogen peroxide solutions are used for sterilization, then sterilization can be achieved, but water barriers form on surfaces slowing down the process
Solution Approach 1:
The patent changes the physical state of hydrogen peroxide from liquid (aqueous solution) to gas phase. This parameter change eliminates water barrier formation on surfaces while maintaining the sterilization function, directly resolving the contradiction between sterilization effectiveness and water barrier interference.
Solution Approach 2:
The patent utilizes phase transition by vaporizing hydrogen peroxide to create a gaseous sterilization agent. This phase transition from liquid to gas eliminates the water barrier problem while enabling rapid surface penetration and sterilization, improving productivity without the harmful water barrier effect.
2Productivity
If aqueous hydrogen peroxide is used, then sterilization is possible, but diffusion is slow
Solution Approach 1:
The patent changes the physical state from liquid to gas, which fundamentally alters diffusion characteristics. Gaseous hydrogen peroxide diffuses rapidly through air and across surfaces, eliminating the slow diffusion problem associated with aqueous solutions while maintaining sterilization effectiveness.
Solution Approach 2:
The patent employs gaseous phase hydrogen peroxide instead of liquid phase, utilizing gas properties for rapid diffusion and distribution. This pneumatic approach enables fast sterilization by allowing the gas to penetrate and distribute uniformly across surfaces without the viscosity and slow diffusion characteristics of liquid solutions.
3Reliability
If conventional sterilization equipment is used, then sterilization can be performed, but the equipment is complex
Solution Approach 1:
The patent extracts and eliminates unnecessary complex components from conventional sterilization equipment by using a simplified system that generates gaseous hydrogen peroxide in situ. This extraction of complexity maintains sterilization effectiveness while dramatically reducing equipment complexity through a more straightforward generation and delivery system.
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 system achieves rapid and effective sterilization by directly targeting contaminants with hydroxyl ions, reducing the need for complex equipment and enhancing sterilization efficiency.
Implementation Method 1
a heating element configured to heat the peroxide complex in the hydrogen peroxide generation chamber to release peroxide gas
Implementation Method 2
a UV light source configured to bombard the hydroxyl radical source with UV light to release the flow of hydroxyl radicals
Implementation Method 3
The gaseous hydrogen peroxide may be deteriorated by a flow of hydroxyl radicals to produce hydroxyl ions
Data Source
AI summary
A sterilization system for sterilizing an article is disclosed. The sterilization system may include a hydrogen peroxide generation system configured to generate hydrogen peroxide, a hydroxyl generation system configured to produce a flow of hydroxyl radicals that causes deterioration of the hydrogen peroxide to produce hydroxyl ions, and a sterilization chamber configured to expose the article to the hydroxyl ions to sterilize the article. Additionally, methods for sterilizing articles are disclosed. Those methods may include generating hydrogen peroxide, producing a flow of hydroxyl radicals that causes deterioration of the hydrogen peroxide to produce hydroxyl ions, and exposing the article to the hydroxyl ions to sterilize the article.