Figure 3.

Strain stiffening of fibrin gels under shear deformation. Dynamic shear storage moduli measured with a strain-controlled rheometer at different maximal strain amplitudes are shown for 6 mg ml⁻¹ human fibrinogen polymerized under coarse clotting conditions (filled circles), and for 5% polyacrylamide polymerized with ammonium persulphate and TEMED (open circles) by standard methods. Detailed methods are given in Storm et al. (2005).