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  2. Saffman–Delbrück model - Wikipedia

    en.wikipedia.org/wiki/Saffman–Delbrück_model

    The Saffman–Delbrück model describes a lipid membrane as a thin layer of viscous fluid, surrounded by a less viscous bulk liquid. This picture was originally proposed to determine the diffusion coefficient of membrane proteins, but has also been used to describe the dynamics of fluid domains within lipid membranes.

  3. Lipid bilayer phase behavior - Wikipedia

    en.wikipedia.org/wiki/Lipid_bilayer_phase_behavior

    In colloidal chemistry, one property of a lipid bilayer is the relative mobility (fluidity) of the individual lipid molecules and how this mobility changes with temperature. This response is known as the phase behavior of the bilayer. Broadly, at a given temperature a lipid bilayer can exist in either a liquid or a solid phase.

  4. Membrane models - Wikipedia

    en.wikipedia.org/wiki/Membrane_models

    Building on the fluid mosaic model, a framework called the proteolipid code was proposed in order to explain membrane organization. [8] The proteolipid code relies on the concept of a zone, which is a functional region of membrane that is assembled and stabilized with both protein and lipid dependency.

  5. Lipid bilayer - Wikipedia

    en.wikipedia.org/wiki/Lipid_bilayer

    Longer-tailed lipids have more area over which to interact, increasing the strength of this interaction and, as a consequence, decreasing the lipid mobility. Thus, at a given temperature, a short-tailed lipid will be more fluid than an otherwise identical long-tailed lipid. [13] Transition temperature can also be affected by the degree of ...

  6. Model lipid bilayer - Wikipedia

    en.wikipedia.org/wiki/Model_lipid_bilayer

    A model lipid bilayer is any bilayer assembled in vitro, as opposed to the bilayer of natural cell membranes or covering various sub-cellular structures like the nucleus. They are used to study the fundamental properties of biological membranes in a simplified and well-controlled environment, and increasingly in bottom-up synthetic biology for ...

  7. Elasticity of cell membranes - Wikipedia

    en.wikipedia.org/wiki/Elasticity_of_cell_membranes

    Of the numerous models that have been developed to describe the deformation of cell membranes, a widely accepted model is the fluid mosaic model proposed by Singer and Nicolson in 1972. [1] In this model, the cell membrane surface is modeled as a two-dimensional fluid-like lipid bilayer where the lipid molecules can move freely. The proteins ...

  8. Lipid bilayer mechanics - Wikipedia

    en.wikipedia.org/wiki/Lipid_bilayer_mechanics

    Schematic showing two possible conformations of the lipids at the edge of a pore. In the top image the lipids have not rearranged, so the pore wall is hydrophobic. In the bottom image some of the lipid heads have bent over, so the pore wall is hydrophilic. Edge energy is the energy per unit length of a free edge contacting water.

  9. Fences and pickets model of plasma membrane structure

    en.wikipedia.org/wiki/Fences_and_pickets_model...

    The movement of phospholipids, even those located in the outer leaflet of the membrane, is regulated by the actin-based membrane skeleton meshwork.Which is surprising, because the membrane skeleton is located on the cytoplasmic surface of the plasma membrane, and cannot directly interact with the phospholipids located in the outer leaflet of the plasma membrane.