131 citations · 1.6k across the 63 of their papers we have counts for
5 papers · 1 filter
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…
Stochastic model for nucleosome sliding in the presence of DNA ligands
Laleh Mollazadeh-Beidokhti, Julien Deseigne, David Lacoste +2
Heat-induced mobility of nucleosomes along DNA is an experimentally well-studied phenomenon. A recent experiment shows that the repositioning is modified in the presence of minor-g…
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…
Electrostatic and electrokinetic contributions to the elastic moduli of a driven membrane
D. Lacoste, G. I. Menon, M. Z. Bazant +1
We discuss the electrostatic contribution to the elastic moduli of a cell or artificial membrane placed in an electrolyte and driven by a DC electric field. The field drives ion cu…
Fluctuation theorem and large deviation function for a solvable model of a molecular motor
D. Lacoste, A. W. C. Lau, K. Mallick
We study a discrete stochastic model of a molecular motor. This discrete model can be viewed as a \emph{minimal} ratchet model. We extend our previous work on this model, by furthe…