Mesoscale bioreactor platform for perfusion

Disclosed is a mesoscale bioreactor platform including two or more liquid reservoirs in fluid communication with a culture chamber which chamber is in fluid communication with an exit. The platform allows the chamber to be perfused with a flow of liquid from one or more of the liquid reservoirs. The integrated reservoirs for liquids remove the need for external supplies of liquid to the culture chamber during cell culture experiments requiring perfusion of liquids. Moreover, with two or more reservoir it is possible to supply the culture chamber with different types of liquids.