Electromechanics of a membrane with spatially distributed fixed charges: flexoelectricity and elastic parameters.
We investigate the electrostatic contribution to the lipid membrane mechanical parameters: tension, bending rigidity, spontaneous curvature, and flexocoefficient, using an approach where stress in the membrane is explicitly balanced. Our model includes an applied electrostatic potential as well as a charge distribution in the membrane. We apply our theory to membranes having surface charges and electric dipoles at the surface.
MEMPHYS - Center for Biomembrane Physics, Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
Bastien
B
Loubet
MEMPHYS - Center for Biomembrane Physics, Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
Per Lyngs
PL
Hansen
MEMPHYS - Center for Biomembrane Physics, Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
Michael Andersen
MA
Lomholt
D002462:Cell Membrane; D004548:Elasticity; D008958:Models, Molecular; D016012:Poisson Distribution; D055672:Static Electricity; D013314:Stress, Mechanical