BiOptix of Boulder, Colo., has announced a partnership with the University of Colorado at Denver to offer low-cost surface plasmon resonance (SPR) services to Colorado-based researchers in academia and industry. The SPR services, offered through the research collaboration with the Biophysics Shared Resource Core Facility at the university’s Anschutz Medical Campus, are based on BiOptix’s 404pi, a next-generation SPR platform that provides label-free analysis of protein-protein kinetics and protein-small molecule interactions.