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10 papers · 2 filters
Equilibrium properties of a grafted polyelectrolyte with explicit counterions
K. Jayasree, P. Ranjith, Madan Rao +1
We study the equilibrium conformations of a grafted polyelectrolyte (PE) in the presence of explicit counterions (CI) using Monte Carlo simulations. The interplay between attractiv…
Generic theory of colloidal transport
Frank Julicher, Jacques Prost
We discuss the motion of colloidal particles relative to a two component fluid consisting of solvent and solute. Particle motion can result from (i) net body forces on the particle…
Non-equilibrium self-assembly of a filament coupled to ATP/GTP hydrolysis
Padinhateeri Ranjith, David Lacoste, Kirone Mallick +1
We study the stochastic dynamics of growth and shrinkage of single actin filaments or microtubules taking into account insertion, removal, and ATP/GTP hydrolysis of subunits. The r…
Mechanical response of active gels
T. B. Liverpool, M. C. Marchetti, J. -F. Joanny +1
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 t…
Generic phase diagram of active polar films
R. Voituriez, J. F. Joanny, J. Prost
We study theoretically the phase diagram of compressible active polar gels such as the actin network of eukaryotic cells. Using generalized hydrodynamics equations, we perform a li…
Membrane tension lowering induced by protein activity
M. D. El Alaoui Faris, D. Lacoste, J. Pecreaux +3
We present measurements of the fluctuation spectrum of giant vesicles containing bacteriorhodopsin (BR) pumps using video-microscopy. When the pumps are activated, we observe a sig…