Rheological analysis of the mechanical properties of different fibrin formulations

In order to measure the rigidity of the four different fibrin matrices, their linear viscoelastic properties were investigated by small-amplitude oscillatory shear rheology using an MCR 301 (Anton Paar, Germany) rheometer. Temperature was controlled by a convection oven operating under air. Measurements were obtained at 37 °C using 8-mm parallel-plate geometry. Sandpaper was fixed to the lower plate to avoid slipping and ensure good adhesion of the samples to the steel surface. Each fibrin formulation was analyzed and compared for G’.