Water-Soluble Carbon Chain Complex for Selective Antimicrobial Membrane Disruption
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Solution Overview
Problem
Current agents for preventing and treating microbial infections often have toxic side effects and are not effective in widely killing or blocking such infections.
Innovation Solution
A water-soluble carbon chain complex is developed, comprising an acting moiety with a fat-soluble saturated or unsaturated carbon chain, a binding moiety capable of interacting with microbial lipid membranes or surface components, and a water-soluble moiety for solubility and targeting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current agents are used to prevent and treat microbial infections, then some antimicrobial effect is achieved, but toxic side effects occur and they are not effective in widely killing or blocking infections
Solution Approach 1:
The agent is segmented into three distinct functional moieties: a carbon chain acting moiety (3-100 carbon atoms) that disrupts microbial membranes, a binding moiety that targets specific microbial components, and a water-soluble moiety that enables solubility and reduces toxicity. This segmentation allows each part to perform its specific function while the whole maintains selective antimicrobial activity with reduced side effects.
Solution Approach 2:
Different parts of the molecule have different properties tailored to specific functions: the carbon chain portion is hydrophobic for membrane insertion and disruption, the binding moiety has specific affinity for microbial targets, and the water-soluble moiety provides solubility and biocompatibility. This local differentiation of properties enables selective action on microbes while sparing human cells.
2Strength
If fat-soluble carbon chains are used to disrupt cell membranes, then membrane disruption capability is improved, but water solubility and safe administration deteriorate
Solution Approach 1:
The patent merges three previously separate functional components into a single integrated molecule: the fat-soluble carbon chain (for membrane disruption), the binding moiety (for target recognition), and the water-soluble moiety (for solubility and safety). This combination allows the agent to achieve both strong membrane disruption capability and good water solubility, enabling safe intravenous, oral, or nasal administration.
Solution Approach 2:
The agent is a composite molecular structure combining hydrophobic carbon chains (3-100 atoms) with hydrophilic water-soluble groups. This composite structure creates a molecule that possesses both lipid-membrane interacting capability and water solubility, resolving the contradiction between membrane disruption strength and administration safety.
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 complex effectively disrupts microbial cell membranes, preventing or treating infections without harming human cells, and can be administered intravenously, orally, or as a nasal spray.
Implementation Method 1
the carbon chain part can be inserted into the phospholipid bilayer of the cell membrane, changing or influencing the length, saturation, and arrangement of the fatty acid chain of cholesterol and phospholipid molecules... thereby changing the structure of the cell membrane
Implementation Method 2
a binding moiety capable of binding to a microbial lipid membrane, a microorganism surface protein, a microorganism surface polysaccharide, or a cell wall component
Data Source
Figure 1~2
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Figure 3B
AI summary
A water-soluble carbon chain substance for regulating transmembrane transport and fluidity of cell membranes, and the preparation and use thereof. The water-soluble carbon chain substance comprises a carbon chain which originally has a certain water solubility, and the structure thereof comprises at least one or more hydrophobic carbon chain parts and one or more hydrophilic groups or residues; and also comprises a high-hydrophilicity complex formed by coupling a hydrophobic carbon chain part to a water-soluble molecule; the water-soluble carbon chain can be used for preventing and treating infection including viruses, bacteria and fungi, anti-ageing, and preventing and reducing the occurrence of neurodegenerative diseases such as Alzheimer's disease; by reducing the non-specific phagocytosis of the nano-drug by cells, the effect of the nano-drug on target lesions is improved.