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Solution phase gold nanorings on a viral protein template
Omar Khalil Zahr1, Amy Szuchmacher Blum
1Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 2K6 Canada.
Nano Letters
|December 28, 2011
Summary
Researchers created novel gold nanoparticle nanorings using Tobacco Mosaic Virus. These substrate-independent structures are a step toward advanced solution-phase metamaterials.
Area of Science:
- Nanotechnology and Materials Science
- Plasmonics and Metamaterials
Background:
- Current metamaterial research heavily relies on 2D substrates produced via lithography.
- Developing novel fabrication methods is crucial for advancing metamaterial applications.
Purpose of the Study:
- To report the fabrication of gold nanoparticle nanorings using Tobacco Mosaic Virus (TMV) coat proteins.
- To demonstrate a substrate-independent method for creating nanoring structures.
Main Methods:
- Assembly of 22 nm gold nanoparticles (GNPs) with and without a central nanoparticle.
- Utilizing Tobacco Mosaic Virus (TMV) coat protein disks as a self-assembling scaffold.
- Fabrication of nanostructures in a solution-phase environment.
Main Results:
- Successful formation of 22 nm gold nanoparticle rings, with and without a central nanoparticle.
- Demonstration of nanoring structures assembled on TMV coat protein disks, independent of traditional substrates.
- Achieved precise control over nanoparticle arrangement within the rings.
Conclusions:
- The study presents a novel, substrate-independent method for fabricating nanoring structures.
- These findings represent a significant advancement towards developing solution-phase or coatings-based metamaterials.
- The TMV-based assembly offers a promising route for scalable metamaterial fabrication.
