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Virus templated metallic nanoparticles
Alaa A A Aljabali1, J Elaine Barclay, George P Lomonossoff
1Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Colney, Norwich, NR4 7UH, UK.
Nanoscale
|September 30, 2010
Summary
Cowpea mosaic virus (CPMV) serves as a template for creating metallic nanoparticles. This method yields uniform nanoparticles under 35 nm, useful for novel material fabrication.
Area of Science:
- Materials Science
- Nanotechnology
- Biotechnology
Background:
- Plant viruses can function as nanoscale building blocks for advanced materials.
- Cowpea mosaic virus (CPMV) has demonstrated potential as a template in material synthesis.
Purpose of the Study:
- To investigate the use of Cowpea mosaic virus (CPMV) particles as templates for fabricating metallic nanoparticles.
- To explore the electroless deposition metallization process using CPMV.
Main Methods:
- Electrostatically binding palladium ions to the CPMV capsid.
- Using the bound palladium ions as nucleation sites for metal deposition from solution via electroless deposition.
- Preparing templated nanoparticles using various metals and alloys (cobalt, nickel, iron, platinum, cobalt-platinum, nickel-iron).
Main Results:
- The CPMV-templated method successfully produced highly monodisperse metallic nanoparticles.
- The resulting nanoparticles had a controlled diameter of approximately 35 nm or less.
- Diverse metallic nanoparticles were fabricated, including single metals and alloys.
Conclusions:
- Cowpea mosaic virus (CPMV) is an effective and versatile template for synthesizing monodisperse metallic nanoparticles.
- This bio-templating approach offers a simple yet powerful method for creating novel nanomaterials.
- The technique holds promise for applications in nanotechnology and materials science.
