File Name : supplementary figure 1.png Caption : supplementary figure 1: net-tangential-force mapping at the ali for no-slip and slip boundary conditions. this figure shows that only a flow rate 20-fold lower than what is experimentally feasible (0.05 μl min-1) can generate a stagnation area under a slip boundary condition. this figure also shows that a 6-fold higher flow rate than what is experimentally feasible could enable a free flow of cells under a no-slip boundary condition. finally, the forces at a flow rate of 6 μl min-1 show that a net tangential force above 100 fn ensures free bead flow.