Fig. 3From: Investigations on the Secondary Structure of Polypeptide Chains in Polyelectrolyte Multilayers and their Effect on the Adhesion and Spreading of OsteoblastsEvolution of specific IR vibrations with the number of bilayers for (PLL-PGA)n films (left) and (PLL-CS)n films (right). Bands around 1,550 cm−1 correspond to amide II vibrations and the 1,244 cm−1 band corresponds to CS moietiesBack to article page