Fig. 7
From: Evaluation of 24 protocols for the production of platelet-rich fibrin
The concentration of cell types found in each layer from 1 mL down to the 10th 1-mL sample utilizing the liquid-PRF protocol of 200g for 5 min. Notice that while not as many cells are located in the plasma layer, a higher concentration of platelets and leukocytes can be found owing to the reduced plasma volume when compared to that in the solid-PRF protocols demonstrated in Fig. 3 (Arrows represent the separation between the plasma and red blood cell layer (buffy coat))