IRREVERSIBLE ADSORPTION ON NONUNIFORM SURFACES - THE RANDOM SITE MODEL

The random sequential adsorption (RSA) process provides a starting point for the development of quantitative descriptions of the irreversible adsorption of proteins and other large molecules. To date, none of the numerous theoretical and computational studies of RSA have considered the effect of nonuniform aperiodic substrates which are present in many physical systems. We study the irreversible adsorption of spherical particles adsorbing on randomly distributed point sites. There exists an unexpected, yet simple, mapping between this process and the corresponding adsorption on a smooth, continuous surface.