Membrane-Coated Nanoparticles Target Pathogens via Adhesion
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Solution Overview
Problem
Current methods for treating or preventing infections caused by pathogens such as viruses, bacteria, fungi, and protozoa are inadequate in effectively targeting and eliminating these pathogens due to limitations in adhesion and interaction with cellular membranes.
Innovation Solution
Development of nanoparticles with an inner core composed of non-cellular material and an outer surface coated with a cellular membrane configured for adhesion of specific pathogens, allowing for targeted delivery of therapeutic agents, isolation, and diagnosis by leveraging the pathogen's affinity for cellular membranes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional therapeutic agents are administered to treat or prevent infections, then the treatment can be provided to the subject, but the agents fail to effectively target and eliminate pathogens due to limitations in adhesion and interaction with cellular membranes
Solution Approach 1:
The patent creates nanoparticles with outer surfaces that copy or mimic natural cellular membranes. These membrane-mimicking surfaces are designed to replicate the adhesion properties of real cells, enabling pathogens to bind to the nanoparticles instead of host cells. This copying approach allows conventional therapeutic agents to be effectively delivered to pathogens by exploiting the pathogen's natural adhesion mechanisms.
Solution Approach 2:
The nanoparticles serve as intermediary structures between conventional therapeutic agents and pathogens. The membrane-mimicking outer surface acts as a mediator that pathogens naturally recognize and bind to, thereby facilitating the delivery of therapeutic agents loaded within the nanoparticle core to the target pathogen without requiring modification of the therapeutic agents themselves.
2Reliability
If nanoparticles with cellular membrane coatings are developed to target pathogens, then targeted delivery and pathogen adhesion are improved, but the device complexity increases
Solution Approach 1:
The nanoparticle design integrates multiple functions into a single structure: the membrane-mimicking outer surface provides targeted pathogen binding, the core accommodates therapeutic agents, and the overall structure enables both diagnosis and treatment. This multi-functionality reduces the need for separate targeting and delivery systems, thereby managing complexity through consolidation rather than proliferation of components.
Solution Approach 2:
The nanoparticle employs composite material construction with a core-shell architecture. The outer shell consists of membrane-mimicking materials that replicate cellular membrane properties for pathogen adhesion, while the inner core contains therapeutic agents or diagnostic materials. This composite structure allows each component to perform its specific function while maintaining overall system manageability through modular design.
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 nanoparticles effectively interfere with pathogen adhesion mechanisms, facilitate targeted drug delivery, and enable efficient isolation and diagnosis, providing a novel approach to treating and preventing infections by mimicking cellular surfaces to which pathogens adhere.
Implementation Method 1
an outer surface comprising a cellular membrane configured for adhesion of a pathogen that causes said infection
Data Source
AI summary
Provided are methods, combinations and pharmaceutical compositions for treating or preventing an infection in a subject using a nanoparticle comprising a) an inner core comprising a non-cellular material, and b) an outer surface comprising a cellular membrane configured for adhesion of a pathogen that causes said infection. Exemplary infection includes infection caused by a virus, bacterium, fungus, or protozoan.