“…Variations of the parallel-plate chamber design have become commonplace in cell biological research and provide a basis for current in vitro modeling of physiologic flow regimes including those relevant to bone [ 20 , 21 , 28 - 31 ], articular cartilage [ 32 ], connective tissue [ 33 ], vascular endothelium [ 34 ], leukocyte recruitment [ 14 , 35 ], as well as pathologies specific to renal dysfunction [ 36 ], and respiratory distress [ 37 ]. In addition, flow perfusion chambers have been implemented to characterize cell-biomaterial interactions [ 27 , 38 , 39 ], improve tissue engineered implants [ 40 ], and develop novel biomedical applications [ 41 ]. While this approach has obvious advantages for investigating effects of fluid shear in diverse biomedical arenas, it is not known how well these in vitro flow chambers perform, e.g .…”