Synergistic Biocidal Composition for Chronic Wound Biofilm Elimination
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Solution Overview
Problem
Current wound cleansers fail to effectively eliminate microbial biofilms in chronic and acute wounds, leading to prolonged healing times and increased medical costs, as they often result in partial reduction with potential regrowth of biofilms.
Innovation Solution
An antimicrobial composition combining a polymeric biguanide with a vicinal diol, such as monoalkyl glycol, monoalkyl glycerol, or monoacyl glycerol, which synergistically reduces or eliminates biofilms by 4 log orders within 10 minutes with no regrowth within 24 hours, enhancing wound healing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current wound cleansers are used, then wound cleaning is performed, but biofilm elimination is insufficient leading to regrowth
Solution Approach 1:
The patent changes the chemical parameters of the wound cleanser by incorporating specific biocidal agents (polymeric biguanides, vicinal diols, and their combinations) at optimized concentrations. This chemical parameter change enables complete biofilm elimination rather than partial reduction, directly resolving the contradiction between cleaning effectiveness and healing time
Solution Approach 2:
The patent uses composite antimicrobial formulations combining multiple active ingredients (polymeric biguanides with vicinal diols, or quaternary ammonium compounds with vicinal diols) synergistically. This composite approach enhances biofilm penetration and elimination capability, achieving complete biofilm eradication and preventing regrowth, thus reducing overall healing time
2Reliability
If frequent debridement is performed to eliminate biofilm, then biofilm burden is reduced, but patient trauma and medical costs increase
Solution Approach 1:
The patent replaces the mechanical debridement process with a chemical-biocidal system. The biocidal agents (polymeric biguanides, vicinal diols, or quaternary ammonium compounds) chemically penetrate and eliminate biofilms without requiring physical removal, thereby achieving complete biofilm eradication while avoiding patient trauma associated with frequent surgical debridement
3Reliability
If multiple simultaneous strategies are used to suppress biofilm, then wound healing is enhanced, but treatment complexity increases
Solution Approach 1:
The patent merges multiple biocidal mechanisms into a single integrated formulation. By combining polymeric biguanides with vicinal diols, or quaternary ammonium compounds with vicinal diols, the formulation achieves synergistic biofilm elimination, complete eradication, and regrowth prevention in one treatment, simplifying the overall treatment protocol while maintaining high healing effectiveness
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 antimicrobial composition achieves complete biofilm elimination and rapid wound healing by utilizing a synergistic interaction between polymeric biguanides and vicinal diols, reducing microbial load and preventing regrowth, thereby reducing patient suffering and medical costs.
Implementation Method 1
An antimicrobial composition comprising at least one polymeric biguanide and at least one antimicrobial vicinal diol
Implementation Method 2
The antimicrobial composition achieves complete biofilm elimination and rapid wound healing by utilizing a synergistic interaction between polymeric biguanides and vicinal diols, reducing microbial load and preventing regrowth
Data Source
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AI summary
An antimicrobial composition with synergistic biocidal activity is described which comprises at least one antimicrobial polymeric biguanide and at least one antimicrobial vicinal diol, said vicinal diol comprises at least one monoalkyl glycol, monoalkyl glycerol, or monoacyl glycerol, to diminish or eliminate biofilm communities. Such synergistic interaction is effective in wound treatment, particularly for chronic wounds, burns and battlefield-induced wounds, as well as for disinfecting non-biological surfaces. The antimicrobial composition can also be prepared as viscous solutions or as gels. The antimicrobial composition may be added to a substrate and dried, such as to a catheter, or to a foam, or to a fiber wound dressing, or coated as a viscous solution or gel upon such devices, to provide controlled release antimicrobial activity.