Surface Plasmon Resonance
Surface Plasmon Resonance (SPR) is a real-time, label-free technique for detecting and monitoring biomolecular interactions at a sensor surface by measuring changes in the refractive index caused by ligand binding. Developed by Kretschmann in 1971 and applied to biosensing by Liedberg, Nylander, and Lundström in 1983, SPR is now a gold standard for measuring binding kinetics (association and dissociation rates) and equilibrium binding constants in protein interactions, antibody-antigen recognition, and drug discovery.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Kretschmann, E. (1971). Determination of optical constants of metals by excitation of surface plasmons. Zeitschrift für Physik, 241(4), 313-324. · URL
- Liedberg, B., Nylander, C., & Lundström, I. (1983). Surface plasmon resonance for gas detection and biosensing. Sensors and Actuators, 4, 299-304. · DOI 10.1016/0250-6874(83)85036-7
- Homola, J. (2008). Surface plasmon resonance sensors for detection of chemical and biological species. Chemical Reviews, 108(2), 462-493. · DOI 10.1021/cr068107d
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