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(A) Cutaway view of bioreactor in submerged culture mode. Arrows indicate flow direction. Blue area indicates culture medium level. (B) Cutaway view of bioreactor in airlift culture mode. Arrows indicate reversed flow direction. Blue area indicates culture medium level. (C) Top view of bioreactor with cell culture inserts. Note the single channel setup. (D) Complete experimental setup with peristaltic pump. Gas transfer is enabled by gas filter and silicone gas-permeable tubes.
