This contribution describes the preparation of nonfouling polypeptide brushes via surface-initiated ring-opening polymerization of oligo(ethylene glycol) modified L-lysine N-carboxyanhydrides. Circular dichroism experiments indicated that these surface-anchored polypeptide chains assume an a-helical conformation, which does not change between pH 4 and 9. Furthermore, nonspecific adsorption of fluorescent labeled bovine serum albumin and fibrinogen on glass slides modified with these brushes was greatly reduced compared to unmodified glass substrates.
Nako Nakatsuka, Nicholas Spencer
Harm-Anton Klok, Alberto Ongaro, Irene Filipucci
Francesco Stellacci, Suiyang Liao