The Biomolecular Interactions unit in the Faculty of Biological and Environmental Sciences offers molecular interaction analysis services for both academic and non-academic users. Biomolecular interactions can either be measured label-free with Biacore T200 using surface plasmon resonance (SPR) or with Monolith NT.115 using MicroScale Thermophoresis (MST). With SPR, one partner of the complex is immobilized onto the surface of a chip and with MST, the interactions are studied in solution while one partner is fluorescently labelled.