Coating of surfaces by RGD peptides is well-known. Herein we describe the possibility to switch cell adhesion properties by changing the distance and orientation of the RGD peptides to the surface. A set of RGD peptides of the type cyclo (-RGDfK-) was synthesized containing the photoswitchable 4-[(4-aminophenyl) azo] benzocarbonyl central unit as spacer between the acrylamide anchor and the RGD peptide. PMMA (poly methyl ...
