Ionene Compositions for Mycobacterium Membrane Disruption
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Solution Overview
Problem
Current antibiotic therapies are inefficient in treating biofilm-protected and intracellular infections such as Mycobacterium tuberculosis and Mycobacterium avium complex due to resistance development, and they fail to penetrate biofilms, leading to chronic infections with limited treatment options.
Innovation Solution
The use of ionene compositions with cationic units distributed along a molecular backbone, which electrostatically disrupt bacterial membranes and integrate hydrophobic functional groups to destabilize and lyse pathogens, preventing resistance development and showing selectivity towards bacterial cells over mammalian cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current antibiotic therapies are used, then treatment of bacterial infections is provided, but they fail to penetrate biofilms and lead to resistance development
Solution Approach 1:
The patent changes the chemical parameters of antimicrobial agents by using ionene compositions with specific cationic charge densities and molecular structures that can penetrate biofilms. The ionene units have unique properties including a cation distributed along a molecular backbone with specific structural features that allow them to disrupt biofilm matrices and kill resistant bacteria, thereby resolving the contradiction between treatment efficacy and resistance development
Solution Approach 2:
The patent employs composite ionene compositions that combine multiple functional units within a single molecular structure. These compositions include cationic units distributed along a molecular backbone with specific structural features that enable simultaneous biofilm penetration and bacterial cell membrane disruption, providing reliable treatment while preventing resistance through multi-target action
2Reliability
If ionene compositions are used, then membrane disruption and antimicrobial efficacy are achieved, but potential toxicity to mammalian cells must be considered
Solution Approach 1:
The patent applies local quality by designing ionene units with specific structural features concentrated at particular locations within the molecular structure. The cationic units are distributed along the molecular backbone with specific structural features that target bacterial cell membranes while sparing mammalian cells, achieving high antimicrobial efficacy with low nonspecific toxicity through localized functional differentiation
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 ionene compositions effectively kill and prevent the growth of Mycobacterium tuberculosis and Mycobacterium avium complex by disrupting their membranes, offering a new therapeutic approach that avoids nonspecific toxicity and resistance, with demonstrated antimicrobial efficacy and low toxicity to mammalian cells.
Implementation Method 1
electrostatically disrupting a membrane of the pathogen in response to the contacting
Implementation Method 2
destabilizing the membrane of the pathogen through integration of the hydrophobic functional group into the membrane of the pathogen
Data Source
AI summary
Techniques regarding killing of a pathogen with one or more ionene compositions having antimicrobial functionality are provided. For example, one or more embodiments can comprise a method, which can comprise contacting a Mycobacterium tuberculosis microbe with a chemical compound. The chemical compound can comprise an ionene unit. Also, the ionene unit can comprise a cation distributed along a molecular backbone. The ionene unit can have antimicrobial functionality. The method can further comprise electrostatically disrupting a membrane of the Mycobacterium tuberculosis microbe in response to the contacting.