Figure 5
From: Graphene oxide-based SPR biosensor chip for immunoassay applications
SPR sensorgrams obtained in response to BSA, at concentration of 100 μg/ml, flowing over surfaces of films. (a) Interaction with conventional SPR chip based on Au-MOA film, (b) interaction with the Cys-based GOS film-based SPR chip, and (c) interaction with ODT-based GOS film-based SPR chip. Association rate (ka), dissociation rate (kd), affinity constant (KA), and dissociation constant (KD) were obtained from fitted curves.