Table II. Thickness and roughness of the polyelectrolyte multilayer coatings applied on model Si wafers. Data are presented as the mean value±standard deviation obtained from three samples, each analyzed at three spots.

Chi: Chitosan; HA: hyaluronic acid; PAA: polyacrylic acid; PAH: polyallylamine hydrochloride; PSS: polystyrene sulfonate; Sa: average surface roughness; Sq: root mean square roughness.