Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2010-10-19
Eur. Phys. J. E 34, 53 (2011)
Physics
Condensed Matter
Soft Condensed Matter
14 pages, 5 figures, submitted to Eur. Phys. J. E
Scientific paper
10.1140/epje/i2011-11053-4
We derive the expression of the stress tensor for one and two-component lipid membranes with density and composition inhomogeneities. We first express the membrane stress tensor as a function of the free-energy density by means of the principle of virtual work. We then apply this general result to a monolayer model which is shown to be a local version of the area-difference elasticity (ADE) model. The resulting stress tensor expression generalizes the one associated with the Helfrich model, and can be specialized to obtain the one associated with the ADE model. Our stress tensor directly gives the force exchanged through a boundary in a monolayer with density and composition inhomogeneities. Besides, it yields the force density, which is also directly obtained in covariant formalism. We apply our results to study the forces induced in a membrane by a local perturbation.
Bitbol Anne-Florence
Fournier Jean-Baptiste
Peliti Luca
No associations
LandOfFree
Membrane stress tensor in the presence of lipid density and composition inhomogeneities does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Membrane stress tensor in the presence of lipid density and composition inhomogeneities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Membrane stress tensor in the presence of lipid density and composition inhomogeneities will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-268686