Related Experiment Video
Updated: Apr 4, 2026
08:09
A Technique to Functionalize and Self-assemble Macroscopic Nanoparticle-ligand Monolayer Films onto Template-free Substrates
Published on: May 9, 2014
11.5K
Shaping and patterning gold nanoparticles via micelle templated photochemistry
F Kundrat1, G Baffou, J Polleux
1Max Planck Institute of Biochemistry, Department of Molecular Medicine, 82152 Martinsried, Germany. polleux@biochem.mpg.de.
Nanoscale
|September 11, 2015
Summary
Researchers developed a simple photochemical method to create gold nanostructures with tunable plasmonic properties. This technique allows for precise shaping and positioning of nanoparticles for advanced applications.
Area of Science:
- Materials Science
- Nanotechnology
- Photochemistry
Background:
- Fabricating functional plasmonic interfaces with noble metal nanostructures often requires complex and labor-intensive methods.
- Controlling the shape and spatial arrangement of nanoparticles is crucial for tuning their plasmonic properties.
Purpose of the Study:
- To report a simple photochemical approach for the growth, arrangement, and shaping of gold nanoparticles on glass substrates.
- To enable the fabrication of tuneable plasmonic resonances using micellar nanolithography and photolithography.
Main Methods:
- Utilizing ultraviolet illumination on gold-loaded micelle-coated surfaces.
- Employing block copolymer micelles as reactive and light-responsive templates.
- No photosensitizers or photoresists were required.
Main Results:
- Formation of gold nanoparticles with micro/nanometric spatial resolution.
- Growth of deformed gold nanoparticles (potatoids) and nanorings by controlling the extra-micellar environment and illumination wavelength.
- Arrays of potatoids and rings exhibited localized plasmon resonance around 600 and 800 nm, respectively.
Conclusions:
- The photochemical method offers a straightforward route to engineer gold nanostructures with tailored plasmonic properties.
- The resulting nanostructures demonstrate enhanced photothermal properties and high temperature sustainability.
- These platforms are suitable for future advancements in nanochemistry and near-infrared-controlled biomolecular manipulation.
