Single-Use Bioreactors for the Rapid Production of Preclinical and Clinical BiopharmaceuticalsByMikal Sherman,Christopher R. Cruz,Christel Fenge, PhD,Jessica Martin,Rüdiger Heidemann, PhD,Paul Wu, PhDOctober 1st 2014Fed-batch processes were scaled up from traditional bench-scale bioreactors to large-scale single-use systems.