Publications by authors named "Denis Rodriguez-Fernandez"
The library of plasmonic nanosystems keeps expanding with novel structures with the potential to provide new solutions to old problems in science and technology. We report the synthesis of a novel plasmonic system based on the growth of gold nanowires radially branching from the surface of silica particles. The nanowires length could be controlled by tuning the molar ratio between metal salt and surface-grafted seeds.
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- Protecting groups in organic chemistry are utilized to synthesize Au-silica Janus stars, featuring gold branches on one half of silica spheres.
- This structure enhances the plasmonic properties of the gold nanostars, which can be useful in various applications.
- Additionally, the silica component allows for multiple chemical functionalizations, expanding potential uses even further.
This work describes a novel and scalable colloid chemistry strategy to fabricate gold semishells based on the selective growth of gold on Janus silica particles (500 nm in diameter) partly functionalized with amino groups. The modulation of the geometry of the Janus silica particles allows us to tune the final morphology of the gold semishells. This method also provides a route to fabricating hollow gold semishells through etching of the silica cores with hydrofluoric acid.
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