Bioprocessing vendors Sartorius Stedim Biotech and Repligen Corporation have combined their bioreactor technologies to offer control integrated bioreactors for perfusion. Announced at the BioProcess International Conference in Boston this week, Sartorius and Repligen have inked a deal to integrate their respective technologies into a combined offering for biomanufacturers. Under terms of the deal, Repligen’s XCell ATF cell retention control technology will be combined into Sartorius’ BIOSTAT STR large-scale single-use bioreactors offering customers bioreactors used in perfusion cell culture applications between 50…