Affinity-based biosensors for biomolecular interaction analysis.

This overview presents an introduction to affinity-based biosensors, most notably the BIACORE. These biosensors detect molecular interactions by immobilizing one of the interactants (the ligand or target molecule) on the surface of a sensor chip. A solution containing the other interactant is then applied to the chip. Binding of analyte to the surface results in a response proportional to the mass bound. A discussion of sensor chips and practical applications is also provided.