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Related Experiment Videos

Metal nanoshell assembly on a virus bioscaffold.

Corey Radloff1, Richard A Vaia, Jason Brunton

  • 1Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson, Ohio, USA.

Nano Letters
|June 10, 2005
PubMed
Summary

Chilo iridescent virus serves as a novel core for creating plasmonic nanostructures. This biotemplate method offers a scalable way to produce metallodielectric nanoshells with controlled sizes.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Biotechnology

Background:

  • Metallodielectric nanostructures are crucial for plasmonic applications.
  • Current fabrication methods often rely on silica cores, which have limitations in size control and scalability.

Purpose of the Study:

  • To demonstrate the utility of Chilo iridescent virus as a core substrate for fabricating metallodielectric, plasmonic nanostructures.
  • To explore a novel biotemplating approach for nanoshell synthesis.

Main Methods:

  • Assembling a gold shell around the Chilo iridescent virus core using 2-5 nm gold nanoparticles.
  • Utilizing the inherent chemical functionality of the viral capsid for nanoparticle attachment.
  • Optimizing nucleation site density through electrolyte addition.

Related Experiment Videos

  • Electroless deposition of gold ions around the virus core.

    • Main Results:

    • Successfully fabricated metallodielectric nanostructures using Chilo iridescent virus as a biotemplate.
    • Optical extinction spectra of the metalloviral complex agreed quantitatively with Mie scattering theory.
    • Demonstrated a method for large-scale production of viral cores for nanoshells.

    Conclusions:

    • Chilo iridescent virus is a viable and effective core substrate for plasmonic nanostructure fabrication.
    • This biotemplating approach offers potential for producing nanoshells with narrower size distributions and smaller diameters (<80 nm) compared to silica cores.
    • The inherent properties of the viral capsid facilitate efficient synthesis of metallodielectric nanoshells.