On micro-bead mechanics with actin filaments

Abstract

Experiments have been performed using microscopic beads to probe the small scale mechanics of actin solutions. We show that that there are a number of regimes possible as a function of the size of the probing particle. In certain cases we argue that the quasi-static response resembles a smectic crystal rather than an isotropic solid, implying an anomalous scaling of the mechanical response of actin solutions as a function of the size of the probing particles.

Four pages in revtex. No figures

References in corpus (2)

• Microscopic Viscoelasticity: Shear Moduli of Soft Materials Determined from Thermal Fluctuations
• Two plateau moduli for actin gels

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