#$%^&*AU2014277687B220181004.pdf#####ABSTRACT A method is provided for separating a suspension of cellular material comprising at least two differently-sized cell types using a spinning membrane separator. The method comprises selecting the cell type to be separated by passing through the membrane; determining a concentration of the selected cell type in the suspension; selecting an inlet flow rate for the suspension; selecting a rotational speed for the spinning membrane separator related to one or more of the concentration and relative size of the selected cell type in the suspension; rotating the spinning membrane separator at the selected rotational speed so that the selected cell type tends to migrate to regions of the shear field adjacent the porous membrane; and flowing the suspension through the spinning membrane separator.1/3 70 DRIVE MOTOR 64 72 65 42 65 - --- 64 68 42 66 68 74 20 6640 22 r4 7 58 8 414 10 1 -56 12 52 13 24 662 Fg50 54 61 16 52 16 145 58V A 8 2 83 34834 44 79 79 76 44 76 78 78 46 46 PFig. 2 Frig