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Sensor Chip SA provides a surface of streptavidin covalently attached to a carboxymethyldextran matrix. Dissociation of biotinylated ligands from the surface of the chip is generally negligible during the course of a Biacore analysis because the affinity of streptavidin for biotin is extremely high, with an equilibrium dissociation constant of about 10-15 M. High binding capacity, reproducibility, and chemical resistance give excellent performance over a broad range of applications. The surface of Sensor Chip SA is resistant to 1-minute pulses of many agents commonly used in SPR sensor chip washing and regeneration protocols.
Biacore Sensor Chip SA applications
Biotin has become a popular molecular tag for capture and interaction studies because it is stable and rarely interferes with target activity or structure due to its small size. Biotin can be conveniently conjugated to a wide range of target molecules by chemical or enzymatic means. Applications for Sensor Chip SA are therefore broad. Examples include:
characterizing PROTAC ternary complex formation
screening of endocrine-disrupting chemicals
elucidating DNA- and RNA- mediated mechanisms of catechins in cancer prevention
Sensor chip formats for Biacore systems
Biacore sensor chips are available in two formats:
Series S sensor chips are for use with Biacore 1 series, Biacore 8 series, Biacore S200, Biacore T200, and Biacore 4000 SPR systems.
Sensor chips not designated with Series S are designed for Biacore X100 and Biacore C SPR systems.
