Figure 7.

Adsorption of fluorophore-labeled proteins fibrinogen (orange bars) and BSA (yellow bars) from PSB solution onto polyzwitterion hydrogel coatings, according to the sample’s fluorescence intensity after exposure (intensities normalized to the intensities measured for P−xBMA): (a) Upon variation of the hydrogel film thickness for P−x3a (P−xSPE); (b) upon variation of the polyzwitterion structure, while keeping film thickness at about 100 nm. Films of the nonionic P−xOEGMA and the hydrophobic P−xBMA are used as references (positive and negative control, respectively).