In this Tech Blast episode supported by Sartorius (Göttingen, Germany), we talk to Daryl Cole about cell-line development (CLD), some of its challenges and a possible solution: the Octet Bio-Layer Interferometry (BLI) system. Daryl Cole is a Scientist in the Bio Applications Team at Sartorius with extensive experience in a range of fields; he offers insights into the possible applications of CLD and how to get the most out of the Octet BLI system.