Biotinylated glycans are emerging as a valuable class of carbohydrate or glycoconjugate probes that allow exploitation of the strong affinity of avidin and streptavidin for biotin, a feature vastly utilized across molecular biology for decades. Techniques for the study of protein–carbohydrate interactions are of great interest in glycobiology and to this day, Sussex Research Laboratories Inc. has been developing biotinylated saccharides to advance research in the field.