Plasma-Derived Nanoparticles for Direct Multi-Cargo Conjugation
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Solution Overview
Problem
Current nanoparticle-based therapeutics and diagnostics face challenges in achieving robust and simple conjugation with pharmaceutical agents, require complex multi-step protocols, and struggle with drug biodistribution and site accumulation, stability of nucleic acids, and toxicity issues, limiting their effectiveness in targeted delivery and imaging.
Innovation Solution
Development of nanoparticulate polymers with specific electron paramagnetic resonance peaks and zeta potentials, capable of direct conjugation with multiple functional molecules through plasma-based synthesis, allowing for simple and efficient production of conjugates with enhanced stability and bioactivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If current nanoparticle-based therapeutics and diagnostics are used, then they can deliver molecular cargos, but they require complex multi-step protocols for conjugation with pharmaceutical agents
Solution Approach 1:
The patent applies preliminary action by pre-functionalizing nanoparticle surfaces with specific chemical groups (carboxyl, amine, hydroxyl, or thiol groups) during the nanoparticle formation process. This pre-prepared surface functionality eliminates the need for complex post-synthesis conjugation protocols, as pharmaceutical agents can be directly attached to these pre-existing functional groups through simple mixing conditions, thereby resolving the contradiction between ease of manufacture and device complexity
Solution Approach 2:
The patent introduces functional groups on nanoparticle surfaces as intermediary elements that mediate between the nanoparticle core and pharmaceutical agents. These surface functional groups act as chemical intermediaries that facilitate direct conjugation without requiring complex multi-step protocols, thus simplifying the overall manufacturing process while maintaining conjugation effectiveness
2Reliability
If passive targeting nanoparticle systems are used, then they can penetrate abnormal vasculature, but they show deficiencies in drug biodistribution and site accumulation
Solution Approach 1:
The patent applies local quality by enabling site-specific functionalization of nanoparticle surfaces with different ligands tailored to specific target tissues or cells. This allows the nanoparticle to have different functional properties at its surface that can be optimized for specific biological environments, improving biodistribution control and site accumulation while maintaining reliable drug delivery through the abnormal vasculature
3Adaptability or versatility
If nanoparticles are functionalized with target ligands for specific delivery, then they can achieve targeted delivery, but the capacity to bind multiple molecular cargos on the same nanocarrier becomes elusive
Solution Approach 1:
The patent applies universality by designing nanoparticle surfaces with multiple types of functional groups (carboxyl, amine, hydroxyl, thiol) that can simultaneously or sequentially bind different types of molecular cargos including pharmaceutical agents, imaging agents, and targeting ligands. This multi-functional surface chemistry enables a single nanoparticle to carry multiple cargos with different functionalities, achieving versatile targeted delivery without excessive complexity
Solution Approach 2:
The patent applies segmentation by dividing the nanoparticle surface into multiple functional zones, each with specific chemical groups tailored for binding different types of molecular cargos. This segmented functionalization allows independent optimization of each cargo-binding site while maintaining overall nanoparticle integrity, thus enabling multi-cargo capacity without overwhelming complexity
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 nanoparticulate polymers enable targeted and selective delivery of therapeutic and imaging agents, maintaining bioactivity and stability for extended periods, facilitating improved therapeutic outcomes and diagnostic imaging with reduced complexity and toxicity.
Implementation Method 1
nanoparticulate polymers produced by polymerisation of a plasma comprising one or more organic monomers
Implementation Method 2
a broad electron paramagnetic resonance peak centred in a range of about 3470 G to about 3520 G
Implementation Method 3
capable of direct conjugation with multiple functional molecules through plasma-based synthesis
Data Source
AI summary
This application relates to nanoparticles, including nanoparticles derived from a plasma, and their use in the formation of conjugates. The nanoparticles can be stably conjugated to a wide variety of second species, forming conjugates which can be used, for example, in therapeutic, diagnostic and experimental methods.