Process performance in bioreactors is strongly influenced by the efficiency of bulk fluid mixing and the oxygen mass transfer coefficient (kLa). The success of traditional stainless steel STR systems lies in their direct impeller driven agitation that can deliver a wide range of specific power inputs to the fluid. The Allegroâ„¢ range of single-use stirred tank bioreactors has adopted this direct driven impeller technology, which allows a wide range of specific power inputs to be achieved. In addition, modifications to…