Hydrogen Peroxide Disinfectant Composition Balancing Efficacy and Safety
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Solution Overview
Problem
Existing antimicrobial and disinfection agents certified for environmental safety, such as those in the EPA's Safer Choice program, are less effective and lack optimal disinfecting qualities compared to traditional agents, necessitating a safer and more effective alternative.
Innovation Solution
A disinfectant composition devoid of phosphoric acid and beta hydroxy acid, comprising hydrogen peroxide, chelating agents, dispersants, acidulates, solvents, and surfactants, with specific weight percentages, to enhance antimicrobial efficacy and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional disinfection agents are used, then high antimicrobial efficacy is achieved, but environmental safety and harmful exposure risks deteriorate
Solution Approach 1:
The patent changes the chemical parameters by using hydrogen peroxide as the active ingredient instead of traditional agents like bleach or quaternary ammonium compounds. The concentration is optimized at 3% to balance efficacy and safety. Additional parameters are adjusted by incorporating specific surfactants (0.5-2%), chelating agents (0.1-1%), and acidulates (0.1-1%) to enhance performance while maintaining environmental safety.
Solution Approach 2:
The patent creates a composite disinfection formulation by combining hydrogen peroxide with multiple auxiliary components: surfactants (anionic, nonionic, or cationic), chelating agents (EDTA, citric acid, or gluconic acid), and acidulates. This composite approach synergistically enhances antimicrobial efficacy while maintaining environmental safety and preventing surface corrosion.
2Object-affected harmful factors
If safer disinfection agents are used, then environmental safety is improved, but antimicrobial efficacy deteriorates
Solution Approach 1:
The patent introduces intermediary substances to bridge the gap between safety and efficacy. Surfactants act as mediators to enhance hydrogen peroxide's penetration and contact with microbial cells. Chelating agents mediate by sequestering metal ions that could catalyze unwanted reactions, stabilizing the formulation. These intermediaries allow safer agents to achieve traditional levels of efficacy.
Solution Approach 2:
The patent optimizes multiple parameters simultaneously: hydrogen peroxide concentration at 3%, surfactant concentration at 0.5-2%, chelating agent at 0.1-1%, and acidulate at 0.1-1%. This multi-parameter optimization ensures that the safer hydrogen peroxide-based formulation achieves antimicrobial efficacy comparable to traditional agents while maintaining environmental safety.
3Reliability
If phosphoric acid and beta hydroxy acid are included, then antimicrobial efficacy is improved, but environmental safety and material corrosion deteriorate
Solution Approach 1:
The patent extracts and removes phosphoric acid and beta hydroxy acid from the formulation, eliminating their harmful corrosive effects on surfaces and materials. Instead, it uses safer alternatives: mild acidulates like citric acid or gluconic acid at 0.1-1% concentration, which provide sufficient antimicrobial enhancement without causing material degradation.
Solution Approach 2:
The patent replaces long-lasting but corrosive acid components with shorter-acting, milder acidulates that decompose into harmless substances. Citric acid and gluconic acid break down into carbon dioxide, water, and benign organic compounds, eliminating persistent material damage while maintaining temporary antimicrobial efficacy during the disinfection process.
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 composition achieves high antimicrobial efficacy, stability, and extended shelf life, with a surprising increase in bactericidal and virucidal activity against organisms like Staphylococcus aureus, while being environmentally friendly.
Implementation Method 1
the invention relates to a composition utilizing hydrogen peroxide to provide high antimicrobial efficacy and prevent local environmental bacterial growth and virucidal activity
Implementation Method 2
one or more chelating agents in an amount ranging from about 0.08 to about 6.40 wt. % based on a total weight of the concentrate
Implementation Method 3
one or more surfactants in an amount ranging from about 0.20 to about 36.84 wt. % based on a total weight of the concentrate
Implementation Method 4
one or more dispersants in an amount ranging from about 0.04 to about 1.78 wt. % based on a total weight of the concentrate
Data Source
AI summary
A disinfectant concentrate and composition that is devoid of phosphoric acid and beta hydroxy acid. The disinfectant composition includes: (a) about 0.0278 to about 0.6365 wt. % hydrogen peroxide based on a total weight of the composition; (b) a chelating agent in an amount ranging from about 0.0013 to about 0.388 wt. % based on a total weight of the composition; (c) a dispersant in an amount ranging from about 0.006 to about 0.108 wt. % based on a total weight of the composition; (d) about 0.004 to about 1.255 wt. % of an acidulate based on a total weight of the composition; (e) a solvent in an amount ranging from about 0.0016 to about 1.452 wt. % based on a total weight of the composition; (f) a surfactant in an amount ranging from about 0.0031 to about 2.29 wt. % based on a total weight of the composition; and (g) the balance deionized water.