The team has found a facile example of the in situ preparation and fabrication of stable gold nanoparticles on silica in an aqueous medium, by using only lipid-grafted silica particles in HAuCl4 solution without addition of any external reducing agent. The metamaterial particles show high catalytic activity for the reduction of p-nitrophenol to p-aminophenol.

The team used FE-SEM and TEM instruments for observing the silica-lipid-Au conjugate.

More information can be found in the journal Nanotechnology.