Metal Nanoparticle Antimicrobial Compositions for Selective Microbe Targeting
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Solution Overview
Problem
Current antimicrobial compositions are ineffective against certain microbes due to tolerance or immunity development, and lack specificity in targeting and killing viruses without harming the host organism.
Innovation Solution
Development of antimicrobial compositions comprising metal nanoparticles of specific sizes and distributions to selectively target and deactivate viruses, bacteria, or fungi, using spherical and coral-shaped nanoparticles that do not rely on ion release for their efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional antimicrobial compositions (antibiotics, harsh chemicals) are used to kill microbes, then microbial diseases can be treated, but microbes can build up tolerance or immunity and the compositions become ineffective
Solution Approach 1:
The patent changes the physical parameters of the antimicrobial agent by using metal nanoparticles with specific size ranges (e.g., 1-10 nm for viruses, 10-100 nm for bacteria) instead of conventional chemical antibiotics. This parameter change in particle size and physical state enables the nanoparticles to penetrate microbial structures and disrupt them physically, preventing the development of chemical tolerance or immunity while maintaining reliable effectiveness.
2Reliability
If non-specific antimicrobial measures (burning, harsh chemicals) are used to combat microbes, then microbes can be killed, but the organism being treated is severely affected or killed
Solution Approach 1:
The patent applies local quality by using metal nanoparticles with specific size ranges tailored to target specific microbial types (e.g., smaller nanoparticles for viruses, larger for bacteria). This localized specificity ensures that the antimicrobial action is concentrated on the target pathogen while minimizing interaction with and harm to the host organism's cells, which have different structural characteristics.
Solution Approach 2:
The patent segments the antimicrobial approach by dividing microbial targets into distinct categories (viruses, bacteria, fungi) and assigning specific nanoparticle size ranges to each category. This segmentation enables selective targeting where the nanoparticles can penetrate and disrupt the specific structural features of each microbial type without affecting the host organism.
3Reliability
If metal nanoparticles of specific sizes are used to selectively target microbes, then high specificity and efficacy are achieved, but the complexity of selecting and manufacturing appropriate nanoparticle sizes increases
Solution Approach 1:
The patent establishes specific parameter ranges for nanoparticle sizes (e.g., 1-10 nm for viruses, 10-100 nm for bacteria) that balance specificity with manufacturability. These defined parameter ranges provide clear manufacturing targets that simplify the production process while maintaining high targeting specificity, avoiding the need for excessively precise or complex manufacturing procedures.
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 compositions achieve high specificity and reduced harm to the host by maximizing effective nanoparticles while minimizing those harmful to non-target cells, effectively deactivating targeted microbes without significant toxicity.
Implementation Method 1
binding to glycoproteins or disrupting protein structures
Implementation Method 2
disrupting protein structures
Data Source
AI summary
Antimicrobial compositions for killing or deactivating microbes, such as viruses, bacteria, or fungi, include metal nanoparticles, a carrier, and a plurality of metal nanoparticles. The nanoparticles can be selected to have a particle size and particle size distribution to selectively and preferentially kill one of a virus, a bacterium, or a fungus. Antiviral compositions can include nanoparticles having a particle size of 8 nm or less, 1-7 nm, 2-6.5 nm, or 3-6 nm. Antibacterial compositions can include nanoparticles having a particle size of 3-14 nm, 5-13 nm, 7-12 nm, or 8-10 nm. Antifungal compositions can include nanoparticles having a particle size of 9-20 nm, 10-18 nm, 11-16 nm, or 12-15 nm.