Fig. 4.

Flow behavior of suspensions of eADF3 and eADF4 spherical aggregates. (Left) A suspension of eADF3 (10 mg/ml) preformed colloidal aggregates is subjected to various shear rates in a cone-and-plate rheometer. For low shear rates, no significant increase in the viscosity is recorded for up to 1,000 s. At high shear rates, an increase in the apparent viscosity indicates shear-induced aggregation of eADF3 solutions in the presence of 500 mM K₂HPO₄. The effect gets stronger with increasing shear rates. (Right) No effect of shearing is observed for eADF4 (10 mg/ml) in 500 mM K₂HPO₄.