Chemically bound gold nanoparticle arrays on silicon: assembly, properties and SERS study of protein interactions.

@article{Kaminska2008ChemicallyBG,
  title={Chemically bound gold nanoparticle arrays on silicon: assembly, properties and SERS study of protein interactions.},
  author={Agnieszka Kaminska and Obianuju Inya-Agha and Robert J Forster and Tia E. Keyes},
  journal={Physical chemistry chemical physics : PCCP},
  year={2008},
  volume={10 28},
  pages={4172-80}
}
A highly reproducible and facile method for formation of ordered 2 dimensional arrays of CTAB protected 50 nm gold nanoparticles bonded to silicon wafers is described. The silicon wafers have been chemically modified with long-chain silanes terminated with thiol that penetrate the CTAB bilayer and chemically bind to the underlying gold nanoparticle. The silicon wafer provides a reproducibly smooth, chemically functionalizable and non-fluorescent substrate with a silicon phonon mode which may… CONTINUE READING