Thinner brushes (10 nm), whether at high or low densities (HD-10 and LD-10, respectively), resulted in approximately half of the adsorption levels measured for HD-30 (370 ± 176 and 268 ± 57 ng/cm 2 , respectively). However, the rates of adsorption to sparser brushes (LD-10) were found to increase, compared to those of dense brushes of comparable dry thicknesses (HD-10).