Self-Assembled Monolayers on Gold Nanoparticles (pages 359–363)
Antonella Badia, Shanti Singh, Linette Demers, Louis Cuccia, Prof. G. Ronald Brown and Prof. R. Bruce Lennox
Version of Record online: 20 JAN 2006 | DOI: 10.1002/chem.19960020318
A chain length dependent phase transition related to a melting process is observed for gold nanoparticles (20-30 Å in diameter) completely covered with alkylthiol chains (C12-C20). A schematic representation of the solid state is shown on the right. NMR, FT-IR, transmission electron microscopy, and differential scanning calorimetry studies indicate that a close relationship exists between self-assembled monolayers formed at planar surfaces and at the highly curved surfaces of these spherical nanoparticles.