The new BI 2500 benchtop SPR system offers 3 channel flow mode and delivers high quality binding response for low immobilization and small molecule 100 Da detection. Its innovative modular design provides users with optimal flexibility to choose amongst various analysis modules for life science, electrochemistry, and biosensing in liquid and gas phase SPR applications. In addition, its fast detection is ideal for the study of fast kinetics of redox-induced conformational changes in proteins and other biomolecules.