Fig. 5.
FITC-LDL adsorption/desorption kinetics onto the wettability gradient region of the C18-silica gradient surface (θadv = 50°, fractional surface coverage of C18 groups, Θ/Θmax(C18) = 0.25) in the case of (a) co-adsorption with HSA, and (b) adsorption onto pre-adsorbed HSA. The dashed line indicates the flux of the FITC-LDL molecules to the surface calculated using Eq. 2