Pulsatory patterns in active viscoelastic fluids with distinct relaxation time scales

Abstract Developing tissues need to pattern themselves in space and time. A prevalent mechanism achieve this are pulsatile active stresses generated by the actin cytoskeleton. Active gel theory is a powerful tool model dynamics of cytoskeletal formation. In theoretical models, influence viscoelastic nature cytoskeleton has so far only been investigated incorporation one relaxation time scale. Here, using minimal theory, we show that distinct shear areal times sufficient drive surfaces with single molecular regulator.