Composite Polydots for Aqueous Compatibility
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Solution Overview
Problem
Conjugated polymers are insoluble in aqueous media, limiting their application in biological and other aqueous-based applications due to their compatibility issues with water.
Innovation Solution
Development of composite nanoparticle compositions comprising a photoluminescent polymeric component and a photo-thermal polymeric component, which can be dispersed or localized within the nanoparticles, allowing for aqueous compatibility and tunable thermal and photoluminescent properties, and can be used in various applications including tissue treatment and wound dressings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conjugated polymers are used for their excellent charge transport properties and photoluminescence, then device performance is improved, but aqueous compatibility deteriorates due to insolubility in water
Solution Approach 1:
The patent creates composite nanoparticles by combining conjugated polymers with amphiphilic block copolymers. The conjugated polymer core maintains charge transport properties while the amphiphilic block copolymer shell provides aqueous compatibility through its dual hydrophobic and hydrophilic segments, enabling the composite to function in both organic and aqueous environments
Solution Approach 2:
The amphiphilic block copolymer acts as an intermediary between the hydrophobic conjugated polymer and the hydrophilic aqueous environment. Its structure with both hydrophobic and hydrophilic blocks allows it to bridge the incompatibility, forming a stable interface that enables aqueous dispersion while preserving the core polymer's functional properties
2Use of energy by moving object
If conjugated polymers are used for photoluminescence and heat generation, then functional performance is improved, but application scope deteriorates due to limited compatibility with aqueous-based media
Solution Approach 1:
The composite nanoparticle structure combines the functional conjugated polymer core with the biocompatible amphiphilic block copolymer shell, enabling the material to maintain its photoluminescence and photothermal conversion capabilities while gaining suitability for biological applications in aqueous environments
Solution Approach 2:
The patent applies local quality by differentiating the properties of different regions within the nanoparticle: the core region contains the conjugated polymer with optimized photoluminescence and charge transport properties, while the shell region contains the amphiphilic block copolymer with optimized aqueous compatibility and biocompatibility, allowing each region to perform its specific function
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 composite nanoparticles demonstrate enhanced compatibility with aqueous media, enabling their use in biological applications, providing controlled heat generation and photoluminescence, and showing promise in tissue treatment and wound healing without cytotoxicity.
Implementation Method 1
A composite nanoparticle described herein comprises a photoluminescent polymeric component and a photo-thermal polymeric component
Implementation Method 2
A composite nanoparticle described herein comprises a photoluminescent polymeric component and a photo-thermal polymeric component
Data Source
AI summary
The present invention relates to nanoparticle compositions and, in particular, to composite polymeric nanoparticle compositions. A composite nanoparticle described herein comprises a photoluminescent polymeric component and a photo-thermal polymeric component. The photoluminescent polymeric component and the photo-thermal polymeric component can each comprise a single polymeric species or multiple polymeric species.