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Controlling Configurational Isomerism in Three-Component Colloidal Hybrid Nanoparticles
James M Hodges1, Raymond E Schaak1
1Department of Chemistry and Materials Research Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
Accounts of Chemical Research
|May 19, 2017
Summary
Controlling the arrangement of nanoscale materials in hybrid nanoparticles is key to unlocking their potential. New synthesis methods allow precise control over nanoparticle configurations for targeted applications.
Area of Science:
- Nanotechnology and Materials Science
- Chemical Synthesis and Engineering
Background:
- Colloidal hybrid nanoparticles combine multiple nanoscale materials for enhanced properties.
- High-order hybrid nanoparticles (three+ domains) offer greater tunability but are challenging to synthesize with precise control.
- Current limitations in controlling nanoparticle morphology hinder the development of targeted applications.
Purpose of the Study:
- To provide insights into the formation pathways of three-component nanoparticle heterotrimers.
- To highlight methods for controlling and modifying the configurations of these complex nanostructures.
- To enable function-driven design of high-order hybrid nanoparticles.
Main Methods:
- Seeded-growth methods for synthesizing hybrid nanoparticles.
- In-depth microscopic investigations of heterotrimer formation.
- Application of organic chemistry-inspired protection-deprotection schemes.
- Exploration of alternative synthesis approaches like insertion reactions and ion exchange.
Main Results:
- Revealed that heterotrimer formation can involve initial indiscriminate nucleation followed by surface-mediated migration and coalescence.
- Demonstrated the effectiveness of protection-deprotection schemes for directing growth towards non-preferred configurations.
- Showcased emerging alternative synthetic strategies for constructing complex hybrid nanostructures.
Conclusions:
- Understanding and controlling configurational isomerism in nanoparticle heterotrimers is crucial for targeted applications.
- Advanced synthetic tools are emerging to enable precise engineering of high-order hybrid nanoparticles.
- These advancements pave the way for designing hybrid nanoparticles with tailored properties and functionalities.
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