Mechanical response of active gels (2008)
Liverpool, T. B., Marchetti, M. C., Prost, J.
We study a model of an active gel of cross-linked semiflexible filaments with additional active linkers such as myosin II clusters. We show that the coupling of the elasticity of the semiflexible...
Atakhorrami, M., Mizuno, D., Koenderink, G. H., Liverpool, T. B., MacKintosh, F. C., Schmidt, C. F.
We have directly observed short-time stress propagation in viscoelastic fluids using two optically trapped particles and a fast interferometric particle-tracking technique. We have done this both by...
Designing phoretic micro- and nano-swimmers (2007)
Golestanian, R., Liverpool, T. B., Ajdari, A.
Small objects can swim by generating around them fields or gradients which in turn induce fluid motion past their surface by phoretic surface effects. We quantify for arbitrary swimmer shapes and...
Rheology of Active Filament Solutions (2006)
Liverpool, T. B., Marchetti, M. Cristina
We study the viscoelasticity of an active solution of polar biofilaments and motor proteins. Using a molecular model, we derive the constitutive equations for the stress tensor in the isotropic phase...
Hydrodynamics of isotropic and liquid crystalline active polymer solutions (2006)
Ahmadi, Aphrodite, Marchetti, M. Cristina, Liverpool, T. B.
We describe the large-scale collective behavior of solutions of polar biofilaments and both stationary and mobile crosslinkers. Both mobile and stationary crosslinkers induce filament alignment...
Nematic and Polar order in Active Filament Solutions (2005)
Ahmadi, A., Liverpool, T. B., Marchetti, M. C.
Using a microscopic model of interacting polar biofilaments and motor proteins, we characterize the phase diagram of both homogeneous and inhomogeneous states in terms of experimental parameters. The...
Bridging the microscopic and the hydrodynamic in active filament solutions (2004)
Liverpool, T. B., Marchetti, M. Cristina
Hydrodynamic equations for an isotropic solution of active polar filaments are derived from a microscopic mean-field model of the forces exchanged between motors and filaments. We find that a spatial...
Dynamics of rigid and flexible extended bodies in viscous films and membranes (2003)
Levine, Alex J., Liverpool, T. B., MacKintosh, F. C.
We study the dynamics of extended rod-like bodies in (or associated with) membranes and films. We demonstrate a striking difference between the mobilities in films and bulk fluids, even when the...
On the mobility of extended bodies in viscous films and membranes (2003)
Levine, Alex J., Liverpool, T. B., MacKintosh, F. C.
We develop general methods to calculate the mobilities of extended bodies in (or associated with) membranes and films. We demonstrate a striking difference between in-plane motion of rod-like...
The scaling behaviour of screened polyelectrolytes (1997)
We present a field-theoretic renormalization group (RG) analysis of a single flexible, screened polyelectrolyte chain (a Debye-H\"uckel chain) in a polar solvent. We point out that the Debye-H\"uckel...
Statistical mechanics of double-stranded semi-flexible polymers (1997)
Liverpool, T. B., Golestanian, R., Kremer, K.
We study the statistical mechanics of double-stranded semi-flexible polymers using both analytical techniques and simulation. We find a transition at some finite temperature, from a type of short...
The Dynamics of a Meandering River (1996)
Liverpool, T. B., Edwards, S. F.
We present a statistical model of a meandering river on an alluvial plane which is motivated by the physical non-linear dynamics of the river channel migration and by describing heterogeneity of the...
Pak3 inhibits local actin filament formation to regulate global cell polarity
Asano, Y., Jiménez-Dalmaroni, A., Liverpool, T. B., Marchetti, M. C., Giomi, L., Kiger, A., ...
Lamellipodia are broad actin-based structures that define the protruding edge of many motile animal cells. Here we identify a Drosophila homolog of the p21-activated kinases (Paks) as a novel...