Chemically-linked Nanoparticle Aggregates with Capping Substituents
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing nanoparticle aggregate synthesis methods result in inconsistent morphology and free reactive groups, leading to irregular in vivo behaviors and aggregate formation issues.
Innovation Solution
Nanoparticle aggregates are formed with interior and exterior cores bound by polyvalent linkers, and capping substituents are used to stabilize the morphology, allowing for controlled size and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional nanoparticle aggregate synthesis methods are used, then aggregate formation is achieved, but morphology consistency deteriorates
Solution Approach 1:
The patent employs controlled chemical reactions with specific stoichiometric ratios and reaction conditions to transform the synthesis parameters, achieving uniform aggregate morphology through precise control of the nanoparticle core assembly process
Solution Approach 2:
The patent introduces capping substituents as intermediary components that mediate the interaction between nanoparticle cores and polyvalent linkers, stabilizing the aggregate structure and ensuring consistent morphology during formation
2Stability of the object's composition
If traditional nanoparticle aggregate synthesis methods are used, then aggregate formation is achieved, but free reactive groups remain causing instability
Solution Approach 1:
The patent removes harmful free reactive groups from the aggregate structure by incorporating capping substituents that specifically bind to and neutralize these reactive groups, eliminating their harmful effects while preserving aggregate stability
Solution Approach 2:
The patent converts the potentially harmful free reactive groups into beneficial capped structures by introducing capping substituents that not only eliminate the harmful reactivity but also provide additional stabilization and functional benefits to the aggregate structure
3Reliability
If nanoparticle aggregates with controlled morphology are synthesized, then in vivo behavior consistency is improved, but synthesis complexity increases
Solution Approach 1:
The patent performs preliminary capping of nanoparticle cores before aggregate formation, pre-stabilizing the individual components to ensure consistent in vivo behavior while simplifying the overall synthesis process through staged assembly
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 approach results in stable nanoparticle aggregates with consistent morphology, enhancing their in vivo and ex vivo applications, such as cancer treatment and tumor detection, by ensuring controlled behavior and biocompatibility.
Implementation Method 1
each of the plurality of interior polyvalent linkers includes a central polyvalent moiety covalently bound to at least two nanoparticle linkers
Implementation Method 2
contacting the nanoparticle aggregate with a reactive capping substituent and allowing the reactive capping substituent to react with the plurality of reactive exterior polyvalent linkers
Data Source
AI summary
Provided herein are compositions and methods of preparing nanoparticle aggregates.