Hydrogen Peroxide Disinfectant with Catalyst for Rapid Killing
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Solution Overview
Problem
Existing hydrogen peroxide disinfectant compositions are ineffective against resistant microbial strains and have a slow killing rate, requiring a composition that achieves high killing power against a wide spectrum of germs and viruses in a short time.
Innovation Solution
A disinfectant composition comprising 0.001 to 10% hydrogen peroxide, 0.001 to 20% amphoteric surfactant, and 0.001 to 0.8% alkali metal or alkaline earth metal salt of a cyclic or heterocyclic aromatic compound, with a pH range of 0.1-6, particularly effective against resistant bacteria like Staphylococcus aureus, providing a high killing power of ≥99.999% in 30 seconds or less.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high concentration of hydrogen peroxide is used, then killing power is improved, but killing rate remains slow
Solution Approach 1:
The patent changes the chemical parameters of the disinfectant composition by introducing specific catalysts (enzymes such as catalase, peroxidase, or metal ions like Fe2+, Cu2+, Mn2+) to accelerate the decomposition of hydrogen peroxide. This enables the system to achieve both high killing power (through adequate H2O2 concentration) and fast killing rate (through catalytic acceleration), resolving the contradiction between reliability and productivity.
Solution Approach 2:
The patent introduces catalysts as intermediary substances that mediate the reaction between hydrogen peroxide and microorganisms. These catalysts facilitate the decomposition of H2O2 into reactive oxygen species that act more rapidly on microbial cells, thereby improving the killing rate without sacrificing killing power.
2Object-affected harmful factors
If hydrogen peroxide composition is used, then environmental safety is improved, but effectiveness against resistant microbes deteriorates
Solution Approach 1:
The patent creates a composite disinfectant system combining hydrogen peroxide with specific catalysts (enzymes or metal ions) and optionally with other compatible agents. This composite formulation maintains the environmental safety of hydrogen peroxide (which decomposes into water and oxygen) while enhancing effectiveness against resistant microbes through the catalytic mechanism that generates highly reactive oxygen species capable of penetrating and destroying resistant bacterial structures.
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 exhibits rapid and effective biocidal activity against bacteria, fungi, spores, viruses, and yeast, including virulent strains, demonstrating a high killing power and rate, making it suitable for treating surfaces contaminated with resistant bacteria.
Implementation Method 1
Hydrogen peroxide (H2O2) is generally considered an acceptable 'green' bleaching agent from a toxicological and environmental standpoint because its decomposition and biodegradation products are oxygen and water.
Implementation Method 2
Hydrogen peroxide is used in household laundry bleach, disinfectants, hard surface cleansers, and other cleaning compositions
Implementation Method 3
0.001 to 20% by weight of at least one amphoteric surfactant based on the total weight of the composition
Implementation Method 4
0.001 to 0.8% by weight of at least one alkali metal or alkaline earth metal salt of a cyclic or heterocyclic aromatic compound comprising at least one hydroxyl group, carboxylic group, or combination thereof
Data Source
AI summary
Disinfectant compositions include 0.001 to 10% by weight of hydrogen peroxide or a hydrogen peroxide source based on the total weight of the composition; 0.001 to 20% by weight of at least one amphoteric surfactant based on the total weight of the composition; and 0.001 to 0.8% by weight of at least one alkali metal or alkaline earth metal salt of a cyclic or heterocyclic aromatic compound comprising at least one hydroxyl group, carboxylic group, or combination thereof based on the total weight of the composition. The disinfectant compositions are particularly effective at treating surfaces contaminated with resistant bacteria, such as Staphylococcus aureus at a fast killing rate.