Figure 1.

UBC membranes are fragments lacking clinically relevant biomechanical properties. (A) Coagulated unfractionated blood forms rods that could be pulled from the plain glass tubes. (B) Compression of the UBC on a porous steel plate failed to generate mechanically stable membranes. The pseudo UBC membranes appear as fragments lacking the integrity of a clinically relevant PRF membrane. However, the fragments of the UBC membranes could be harvested and further used in bioassays of TGF-β and anti-inflammatory activity. Scale bars indicate 12 mm.