Non-aqueous Micellar Nanoparticle Encapsulation
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Solution Overview
Problem
Aqueous colloidal preparations of micelle-encapsulated nanoparticles face issues such as fluorescence quenching, poor accessibility for biofunctionalization, ambiguous regiochemistry, and instability due to microbial decomposition, limiting their applications in non-aqueous conditions and requiring microbicides that interfere with biological activities.
Innovation Solution
A composition of micelles in non-aqueous solutions encapsulating nanoparticles, formed using amphiphilic block copolymers, which maintains the integrity and properties of nanoparticles when transferred between solvents, including cross-linking via thiol-ene click chemistry for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If nanoparticles are processed in aqueous colloidal preparations, then they can be easily handled and transferred, but fluorescence quenching occurs and microbial decomposition reduces stability
Solution Approach 1:
The patent replaces aqueous environments with non-aqueous solvents (such as organic solvents or ionic liquids) to create an inert environment that prevents microbial decomposition and fluorescence quenching. This allows nanoparticles to maintain their optical properties and stability while still being processable, effectively eliminating the need for microbicides and preserving biological activity.
Solution Approach 2:
The patent changes the fundamental parameter of the solvent environment from aqueous to non-aqueous. This parameter change fundamentally alters the interaction between the solvent and nanoparticles, preventing harmful effects like fluorescence quenching and microbial degradation while maintaining nanoparticle stability and functionality.
2Reliability
If microbicides are added to aqueous preparations, then microbial decomposition is prevented, but biological activities are interfered with
Solution Approach 1:
The patent extracts nanoparticles from aqueous environments entirely and places them in non-aqueous solvents. This extraction eliminates the need for microbicides since the non-aqueous environment inherently prevents microbial growth, thereby removing the harmful interference that microbicides would cause to biological activities.
3Adaptability or versatility
If ligand exchange is performed to transfer nanoparticles to different chemical environments, then nanoparticles can be used in diverse applications, but specific physical and chemical properties are lost
Solution Approach 1:
The patent uses non-aqueous solvents as inert environments that allow nanoparticles to be transferred between different chemical environments without undergoing ligand exchange. The inert nature of these solvents preserves the original ligand shell and nanoparticle properties while enabling versatility in applications.
Solution Approach 2:
The patent employs non-aqueous solvents as intermediary environments that facilitate the transfer of nanoparticles between different chemical environments without direct interaction that would cause ligand exchange. This intermediary approach allows versatile application while maintaining property integrity.
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 non-aqueous micellar encapsulation method preserves the structural and physicochemical properties of nanoparticles, enabling their stable use in diverse solvents and biological applications without compromising fluorescence or biofunctionalization efficiency.
Implementation Method 1
A micelle comprises of a plurality of amphiphilic molecules... This self-assembly process relies on a thermodynamic equilibrium
Implementation Method 2
cross-linking via thiol-ene click chemistry for enhanced stability
Data Source
AI summary
The present invention relates to a composition, comprising at least one micelle in non-aqueous solution, wherein the micelle encapsules one or more nanoparticle(s) and wherein the micelle comprises a cross-linked hydrophilic shell.Furthermore, the present invention relates to the use of such a composition and to methods for providing such a composition.