Influence of the Surface Roughness on the Nanoparticle Adsorption: Theoretical Consideration

Abstract

The electrodynamic interaction between a spherical nanoparticle with a shell and a metal surface has been studied. Adsorption potential and spatial local field distribution in the system ‘nanoparticle-surface’ were calculated, their dependence on the surface structure have been studied. Both linear and nonlinear polarizabilities of the nanoparticle were taken into account. It was shown that presence of nanosized objects on the surface increases the nanoparticle adsorption and leads to the local field enhancement on the nanoparticle surface. The possibility of application of the model to the biomedicine has been described.