Effect of Ultrasonication on the Attachment of Biological material in Proximity of Gold Nanowire Arrays

The aim of this work is to evaluate the response of gold nanowire arrays (Fig. 1) to incident sonication. The excitation of localised surface plasmon resonance (LSPR) on noble-metal nanoparticles has various applications, including use as a label-free biosensing technique. Gold nanoparticles are of particular interest as they are biocompatible (highly stable, non toxic, unlike silver [1]) and their resonant wavelength can be tuned across the visible spectrum by varying the dimensions and geometry of the nanoparticle.