mPEG Thin-Film Microbial Removal on Wounds and Implants
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Solution Overview
Problem
Existing compounds used as non-active excipients are ineffective in killing microbes, leading to microbial attachment and infections on surfaces such as skin and mucosal membranes.
Innovation Solution
Methoxy polyethylene glycol (mPEG) is formulated into a thin film that bioadheres to surfaces, preventing microbial attachment and killing microbes by denying them nutrients, thereby promoting wound and mucosal healing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If compounds are used as non-active excipients, then they are safe and inert, but they cannot kill microbes or prevent infection
Solution Approach 1:
The patent changes the functional parameter of excipients from purely inert to actively microbicidal. Methoxy polyethylene glycol (mPEG) is used at specific concentrations (0.01-99.5% w/w) to form a thin film that denatures microbial proteins and prevents attachment, transforming the excipient into an active therapeutic agent while maintaining safety.
Solution Approach 2:
mPEG serves multiple functions simultaneously: it acts as a excipient carrier, forms a protective thin film on surfaces, denatures microbial proteins, prevents microbial attachment, and promotes wound healing. This multi-functionality resolves the contradiction by making the excipient both safe and actively protective against microbes.
2Ease of manufacture
If traditional excipients are used, then the formulation is simple and safe, but microbial removal and wound healing are ineffective
Solution Approach 1:
mPEG is applied topically and self-assembles into a thin film on the surface of interest (skin, mucosa, wound). This self-forming characteristic eliminates the need for complex formulation devices or application mechanisms, maintaining ease of manufacture while achieving effective microbial removal through the film's protein-denaturing properties.
3Object-affected harmful factors
If compounds form a thin film on surfaces, then microbial attachment is prevented, but the compound must be applied in specific concentrations
Solution Approach 1:
The patent establishes an optimal concentration range (0.01-99.5% w/w, preferably 0.2-98%) for mPEG to form an effective thin film. This parameter optimization ensures that the formulation achieves microbial attachment prevention while maintaining manufacturing feasibility within the specified concentration bounds.
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
MPEG effectively removes and kills microbes on various surfaces, including skin and mucosal membranes, leading to rapid healing and prevention of infections.
Implementation Method 1
compounds that have in the prior art been used as non-active excipients, and that are unable to kill microbes such as bacteria, viruses, fungi or parasites, have been found to make a thin film on a treated surface such as skin or a wound, resulting in the release or removal of the microbes from the surface
Data Source
AI summary
Methoxy polyethylene glycol for use as a medicament, in particular in skin healing, wound healing and treatment of a microbial infection. A method for treating a medical device and/or implant to reduce or eliminate microbial contamination comprises applying a liquid formulation comprising methoxy polyethylene glycol. This invention relates to the novel discovery that methoxy polyethylene glycol, an inactive polymer with no known pharmacological effect, was able to come between microbes and a surface, removing the microbes or releasing the attachment or adherence of the microbes to the surface and thereby improving wound healing significantly, eliminating infections and colonies of microbes.