Fig. 3From: Selective Cell Recruitment and Spatially Controlled Cell Attachment on Instructive Chitosan Surfaces Functionalized with AntibodiesQCM curves of antibody adsorption and coupling (fifth overtone). The frequency change of the sensor is shown in the black curve and the dissipation in the blue curve. (A) Antibody (10 μg/ml) in PBS, (B) PBS, (C) BS3 in PBS (0.35 mM), (D) Antibody (4 μg/ml) in BS3 (0.35 mM), (E) PBS were separately injected into the reaction cell and the resulting frequency changes were measuredBack to article page