Chlorhexidine Pentane-1,5-Diol Synergistic Antimicrobial Composition
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Solution Overview
Problem
There is a growing need for novel antimicrobial compositions that can effectively inactivate microorganisms, including antibiotic-resistant bacteria, viruses, and fungi, as traditional antimicrobials face increasing resistance and adverse side effects, and existing combinations of chlorhexidine and other compounds do not demonstrate synergistic effects at optimal concentrations.
Innovation Solution
A composition comprising between 0.000001 and 5% chlorhexidine and between 1 and 75% pentane-1,5-diol is developed, which exhibits a synergistic antimicrobial effect, allowing for lower doses and reduced side effects while effectively combating gram-positive and gram-negative bacteria, fungi, and viruses, including Staphylococcus aureus and P. acnes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If higher concentrations of chlorhexidine are used to improve antimicrobial effectiveness, then the antimicrobial effect is enhanced, but skin irritation and adverse reactions increase
Solution Approach 1:
The patent changes the concentration parameter of chlorhexidine to a low range (0.001-1%) and combines it with pentane-1,5-diol at specific ratios (99:1 to 1:99), transforming the chemical composition parameters to achieve both effectiveness and safety
Solution Approach 2:
The patent creates a composite antimicrobial composition by combining chlorhexidine with pentane-1,5-diol, where the two substances work synergistically to provide effective antimicrobial action at low chlorhexidine concentrations, reducing skin irritation while maintaining reliability
2Reliability
If traditional antimicrobial compositions are used to combat microorganisms, then antimicrobial action is achieved, but microorganism resistance develops
Solution Approach 1:
The patent merges chlorhexidine with pentane-1,5-diol in a single composition, creating a dual-mechanism antimicrobial agent that combines the membrane-disrupting action of chlorhexidine with the protein-denaturing and membrane-perturbing effects of pentane-1,5-diol, thereby preventing resistance development
Solution Approach 2:
The patent uses low concentrations of chlorhexidine (0.001-1%) combined with varying concentrations of pentane-1,5-diol (98.9999-99.999% w/w), changing the compositional parameters to achieve effective antimicrobial action while minimizing the selection pressure that leads to resistance
3Reliability
If existing combinations of chlorhexidine and other compounds are used, then some antimicrobial effect is achieved, but synergistic effects are not realized at optimal concentrations
Solution Approach 1:
The patent optimizes the concentration parameters by using chlorhexidine at 0.001-1% and pentane-1,5-diol at 98.9999-99.999% w/w, with specific embodiments testing ratios from 99:1 to 1:99, thereby achieving synergistic effects that were not realized in previous compositions
Solution Approach 2:
The patent builds upon previous findings that propylene glycol may potentiate chlorhexidine (Tawil et al.) and combines this knowledge with the specific properties of pentane-1,5-diol, creating an improved composition that realizes and enhances the synergistic effect through optimized parameter selection
Data Source
AI summary
The invention relates to an antimicrobial composition comprising chlorhexidine and pentane-1,5-diol. Such a composition may be used to combat microorganisms.