For integrin mediated cell adhesion to surfaces, a spacer between the surface anchor and the integrin ligand is crucial. In this thesis, the polyproline peptide sequence has systematically been explored as a novel spacer between integrin ligand and surface anchor moiety in comparison to aminohexanoic acid (Ahx) and polyethylenglycole (PEG) based spacers. Superior properties with regards to retained binding affinity were found for the polyproline sequence. These advantages could be further improved by using divalent polyproline spacer peptides. Finally, the designed mono- and divalent ligands were modified for imaging via fluorescence and PET.
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For integrin mediated cell adhesion to surfaces, a spacer between the surface anchor and the integrin ligand is crucial. In this thesis, the polyproline peptide sequence has systematically been explored as a novel spacer between integrin ligand and surface anchor moiety in comparison to aminohexanoic acid (Ahx) and polyethylenglycole (PEG) based spacers. Superior properties with regards to retained binding affinity were found for the polyproline sequence. These advantages could be further improv...
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