Dynamics and instabilities of lipid bilayer membrane shapes

Dynamics of Bilayer Membrane

The theory combines the Rouse model for a single chain with the liquid crystal theory for bilayer membrane developed by Marcelja. Thus the forces acting on a bead within a chain are spring forces, Brownian force and dissipative or viscous force which appear in Rousetheory plus the liquid crystal and lateral pressure forces. The dynamic viscosity of the system is calculated. 1 . Introduction. Ex...

Role of Bilayer Tilt Difference in Equilibrium Membrane Shapes.

Lipid bilayer membranes below their main transition have two tilt order parameters, corresponding to the two monolayers. These two tilts may be strongly coupled to membrane shape but only weakly coupled to each other.We discuss some implications of this observation for rippled and saddle phases, spontaneous breaking bilayer tubules, and bicontinuous phases. Tilt difference introduces a lengthsc...

Imaging Lipid Microdomains in a Microfluidic Bilayer Lipid Membrane Chip

A microfluidic bilayer lipid membrane (BLM) system supporting correlated opto-electrical membrane characterization has been developed and applied to the imaging of phase-separated lipid microdomains by confocal microscopy. The device consists of a microfluidic network supporting rapid perfusion fabricated in a thermoplastic substrate, bonded to a thin PVDC partition and supported by a thin cove...

Dynamics of bilayer membranes. 1. Isolated membrane

Phenomenological studies of lipid bilayer membranes have become imperative, for a large amount of experiments reveal that the matrix of biomembrane plays an important role in some non-linear phenomena such as shape fluctuations of cells and oscillations of the membrane potential in an external electric field (1-3). In approaching the problem, however, one is immediately confronted with complexi...

Membrane Electrochemistry: Electrochemical Processes in Bilayer Lipid Membrane