Figure 7.

(a) Real-time recorded frequency shift during 5 min of whole blood perfusion at wall shear rates 500 s⁻¹ and 1500 s⁻¹. (b) Height profile of platelet deposits across the biointerface for shear rates 500 s⁻¹ (blue curve) and 1500 s⁻¹ (orange curve) (average height for 500 s⁻¹ (blue) and 1500 s⁻¹ (orange) are shown with dotted lines). Insets: AFM images (height trace) of platelet deposits obtained at 500 s⁻¹ (on the left) and 1500 s⁻¹ (on the right) shear rates respectively. (c) Optical microscopy image of platelets deposits on collagen biointerface at 500 s⁻¹ (on the left) and 1500 s⁻¹ (on the right).